The development of economy and industrialization further accelerates the pace of development of graphic design education.The educational system actively adopted two ways of“going out”and“inviting in”to communicate...The development of economy and industrialization further accelerates the pace of development of graphic design education.The educational system actively adopted two ways of“going out”and“inviting in”to communicate with the western world in graphic design(Zhang,2009).Chinese design began to re-examine its balance between globalization and localization after rapid absorption and international experience digestion.As for the negative influence,it led to the risk of developing short-sightedness in design education.Faced with unprecedented challenges,the graphic design industry was continually expanding its functions.The development of Chinese design cannot entirely rely on its own.There was no doubt that graphic design was indeed facing significant obstacles.The suggestions from the American Institute of Graphic Arts(AIGA)are set very high to achieve;the objectives will be excellent if academia can follow.A study aims to understand the overall curriculum and course design and how best to modify the general curriculum and course design to allow for industry practices changes and keep a close eye on the Chinese market's changing needs for design should be carried out.展开更多
With the continuous development of the national economy and the improvement of the design industry,the wayfinding system has gradually been accepted and valued by the public,and the research on the wayfinding system o...With the continuous development of the national economy and the improvement of the design industry,the wayfinding system has gradually been accepted and valued by the public,and the research on the wayfinding system of the public environment has become more and more in-depth.In recent years,the research on the wayfinding system has begun to develop into the integration of human culture and cultural implantation in the environment,forming a new visual system design concept,Environment Graphic Design.With the deepening of research,environmental graphic design has once again developed and deepened,studying the detailed experience of people in the environment and presenting it in the form of graphic design.That is,Experience Graphic Design.This article will discuss the application of environmental graphic experience design in the construction of characteristic tourism from the perspective of signage design.展开更多
Currently, The current flat design has become a mainstream approach is widely used in web design, computer and mobile phone systems, interface design. In graphic design, graphic symbol design is increasingly being tak...Currently, The current flat design has become a mainstream approach is widely used in web design, computer and mobile phone systems, interface design. In graphic design, graphic symbol design is increasingly being taken seriously and use minimalist design symbols often appear in print design plane, PPT presentations, public areas, identity-oriented system like. This paper discusses the design of graphical symbols flat in graphic design use need to make the audience cognitive ability, graphic symbols standardized principles, design principles angles for effective information design to achieve efficient information communication. Materialized mostly graphic image symbols, and mostly flat graphic indicator; flat screen symbol by the proposed development materialized symbol interface evolved. Materialized the graphical interface and the graphical interface is flat coexist and cannot replace each other. During the design, the designer should be based on the advantages and disadvantages of the two styles complement each other interfaces, common graphical interface design services.展开更多
In this paper, we conduct research on the novel mode of plane graphic design from the core angle of the primary visual language transmitting. Relationship between nationality and cosmopolitan processing in graphic des...In this paper, we conduct research on the novel mode of plane graphic design from the core angle of the primary visual language transmitting. Relationship between nationality and cosmopolitan processing in graphic design in the design of image symbol expression and significance of the symbol on the one hand require symbolic form must have enough openness and the cognitive function on the other hand with semiotics method can let the designer to extract the most representative and symbolic notation style to carry on the design expression. As a non- verbal symbols, from the perspective of the view, the design image is no national boundaries, but the human form to beauty and should express the symbolism of cognition is the same. In the form of the ethnic groups of the cosmopolitan codes are for identification of Chinese contemporary design possible effective methods. Our research proposes novel perspective of the design which is meaningful.展开更多
With the advent of the informatian age, people are working to build a new knowledge network, knowledge of the past gradually pieced together again. The new knowledge network includes not only advanced science and tech...With the advent of the informatian age, people are working to build a new knowledge network, knowledge of the past gradually pieced together again. The new knowledge network includes not only advanced science and technology, but also includes the historical and cultural value, emotion and sense of innovation. Graphic design is a spiritual and material reality and artistic, aesthetic and practical disciplines integrated with each other. Always take the old approach to their creative confined in a narrow space, and this will inevitably lead to failure. Graphic design must rely on the sense of innovation, combined with the image of abstract thinking; ideas can really create unique designs. Therefore, to enhance training in graphic design innovative design capabilities, innovation and the development of graphic design is an important issue. In this paper, graphic design requirements and the role of innovation capacity will be explared, and the method of application of proposed innovative thinking in graphic design process will be provided.展开更多
This article is based on personal visits to Louisiana State University in the United States.It analyzes and introduces the hotspots of curriculum design,training methods,learning environment,professional ability and q...This article is based on personal visits to Louisiana State University in the United States.It analyzes and introduces the hotspots of curriculum design,training methods,learning environment,professional ability and quality training of graphic design majors in American public comprehensive universities.Analyze the teaching concepts and methods that are inspiring for the relevant design courses for our country from a personal perspective,and gain insights into the deep-seated problems in the cultivation of design innovation capabilities in China and the United States,in order to arouse everyone’s reflection and further develop our country’s design educational reform ideas.展开更多
With spreading and deepening of intangible cultural heritage protection movement in this century, Chinese ink art is among the Masterpieces of the Oral and Intangible Heritage of Humanity. Institutions of higher educa...With spreading and deepening of intangible cultural heritage protection movement in this century, Chinese ink art is among the Masterpieces of the Oral and Intangible Heritage of Humanity. Institutions of higher education is an academic heritage, culture, communication, personnel training platform and carrier, we assume an important role in the protection of heritage and ink art. Modem design teaching is in order to better local cultural heritage, but also to change their design education, more and more traditional elements are used in the classroom student design works. This paper aims to cultural connotations of traditional Chinese ink painting itself carrying elements and aesthetic charm of the excavation, analysis and sorting, which will be teaching in their designs into modem art. The contemporary art and design are to make cultural connotation and aesthetic meaning, making a good combination of tradition and art.展开更多
By analyzing the courses of graphic design major, the author points out that it is necessary to put Chinese traditional culture into courses of graphic design, which can open up students＇ design ideas, optimize their...By analyzing the courses of graphic design major, the author points out that it is necessary to put Chinese traditional culture into courses of graphic design, which can open up students＇ design ideas, optimize their design styles and awareness, as well as improve their moral cultivation. The paper elaborates the influences and realistic significance of Chinese traditional culture on graphic design from perspectives of national cultural development, design communication and teaching application. It emphasizes the specific impacts and penetration of the traditional culture in the teaching of graphic design, including teaching content, teaching concepts, and basic teaching practices, etc. With multi- level elaboration, multi-angle exposition and multi-instance citation, it shows the methods to involve Chinese traditional culture in graphic design展开更多
As a cradle for cultivating and delivering graphic design professionals,the graphic design major in universities should keep up with the times,guided by the“Opinions on Deepening Undergraduate Education and Teaching ...As a cradle for cultivating and delivering graphic design professionals,the graphic design major in universities should keep up with the times,guided by the“Opinions on Deepening Undergraduate Education and Teaching Reform,and Comprehensively Improving the Quality of Talent Cultivation,”deepen teaching reform,and enhance the quality of talent cultivation.Based on this,this article analyzes the existing problems in the teaching of graphic design major and actively explores its teaching reform path,in order to promote the in-depth implementation of graphic design major teaching and even the entire graphic design teaching reform,comprehensively improve the quality of graphic design talent cultivation,and promote the great reform and development of higher education.展开更多
The graphic design industry has been developing rapidly in recent years.People have begun to focus on steering the development of graphic design in the direction of localization,integrating more traditional Chinese el...The graphic design industry has been developing rapidly in recent years.People have begun to focus on steering the development of graphic design in the direction of localization,integrating more traditional Chinese elements,raising the level of acceptance toward graphic design content,and disseminating traditional culture on this basis.Ink art plays an important role in the historical and cultural development process.It uses simple color contrast to construct different situations and possesses unique artistic charm and cultural heritage.Incorporating ink elements into graphic design may enhance the graphic design style and provide inspiration.This article focuses on the reasons,advantages,and strategies of using ink art in graphic design imagery,hoping to provide references for graphic design activities.展开更多
At this stage, the overall development momentum of China's computer industry is steady and improving. The material life of the public is increasingly rich. It promotes the visual enjoyment of goods and indirectly ...At this stage, the overall development momentum of China's computer industry is steady and improving. The material life of the public is increasingly rich. It promotes the visual enjoyment of goods and indirectly promotes the correlation between graphic design and daily life of the public, which puts forward a severe test for graphic designers' daily work. As graphic design is an important carrier of visual art performance, the organic integration of color language can effectively enhance the comprehensive effect of graphic design and provide more beautiful and comfortable commodity design for the public. In order to meet the aesthetic needs of the public, designers should pay more attention to the practical application of color language and give full play to the positive advantages of color language.展开更多
The relationship between arts and mathematics is very close, computer graphic design is based on digital methodology. The paper reveals the mathematical backgrounds behind graphic design by the example of computer-aid...The relationship between arts and mathematics is very close, computer graphic design is based on digital methodology. The paper reveals the mathematical backgrounds behind graphic design by the example of computer-aided cubic modeling and mathematical exchange methodology. Furthermore, one can get incredible artistic effects if computer graphic designers pay more attention to the probability and use probable numbers and fractal operation in their design activities.Finally, the author also discusses the bidirections between arts and mathematics.展开更多
In this article,a graphic design method for broadband Doherty power amplifier(DPA) is proposed based on the basic principle of impedance matching with the help of Smith chart.The proposed graphic method avoids the com...In this article,a graphic design method for broadband Doherty power amplifier(DPA) is proposed based on the basic principle of impedance matching with the help of Smith chart.The proposed graphic method avoids the complex formula derivation in the traditional amplifier circuit design process,and the design process is more simple and intuitive.Besides,it only takes three steps to build the load modulation network(LMN) of two power amplifiers(PA) of the DPA.Besides,a capacitor is used to replace the parasitic parameters of the transistor,and the LMN designed in the two modes is used for exploration and comparison.Further more,the output impedance of the peaking PA is introduced to make the reflection coefficient trajectory on Smith chart lowfrequency dispersion so as to expand the bandwidth of the DPA at the output power back-off(OBO) level.It would not affect the performance of DPA in the saturation(SAT) state.In this way,a broadband DPA can be implemented easily.To validate the proposed design method,a broadband DPA operating from 1.9to 2.6 GHz is designed and measured based on the proposed method.Under the continuous-wave excitation,the fabricated DPA has a 6 dB OBO efficiency of 48%-56% and a SAT efficiency of 64%-73% from 1.75 to 2.45 GHz,and the peak output power is 48.9-49.8 dBm.展开更多
Nowadays, display design has become an art form. Graphic design and environment design play an important role in display. Graphic and space environment have a delicate relationship in display design, like two brothers...Nowadays, display design has become an art form. Graphic design and environment design play an important role in display. Graphic and space environment have a delicate relationship in display design, like two brothers, sometimes they are opposite and sometimes they are in cooperation. The exhibition industry makes an organic integration of different disciplines, and develops more extensive forms. It studies the importance of graphic design, which takes environment design as the carrier to effectively convey the profound connotation of display.展开更多
Virtually all conventional optimizations are Performed in a batch computer environment. No graphic information during the optimization process is provided. The research tactics and implementation procedure of interact...Virtually all conventional optimizations are Performed in a batch computer environment. No graphic information during the optimization process is provided. The research tactics and implementation procedure of interactivegraphics in mechanical optimum design are presented. An interactive Graphics Mechanical Optimum Design Program(IGMODP) for microcomputers is developed. The example of wheeled loader' s working device optimum design usingIGMODP is carried out.展开更多
As computer simulation increasingly supports engine er ing design and manufacture, the requirement for a computer software environment providing an integration platform for computational engineering software increas e...As computer simulation increasingly supports engine er ing design and manufacture, the requirement for a computer software environment providing an integration platform for computational engineering software increas es. A key component of an integrated environment is the use of computational eng ineering to assist and support solutions for complex design. Computer methods fo r structural, flow and thermal analysis are well developed and have been used in design for many years. Many software packages are now available which provi de an advanced capability. However, they are not designed for modelling of powde r forming processes. This paper describes the powder compaction software (PCS_SU T), which is designed for pre- and post-processing for computational simulatio n of the process compaction of powder. In the PCS_SUT software, the adaptive analysis of transient metal powder forming process is simulated by the finite element method based on deformation theories . The error estimates and adaptive remeshing schemes are applied for updated co -ordinate analysis. A generalized Newmark scheme is used for the time domain di scretization and the final nonlinear equations are solved by a Newton-Raphson p rocedure. An incremental elasto-plastic material model is used to simulate the compaction process. To describe the constitutive model of nonlinear behaviour of powder materials, a combination of Mohr-Coulomb and elliptical yield cap model is applied. This model reflects the yielding, frictional and densification char acteristics of powder along with strain and geometrical hardening which occurs d uring the compaction process. A hardening rule is used to define the dependence of the yield surface on the degree of plastic straining. A plasticity theory for friction is employed in the treatment of the powder-tooling interface. The inv olvement of two different materials, which have contact and relative movement in relation to each other, must be considered. A special formulation for friction modelling is coupled with a material formulation. The interface behaviour betwee n the die and the powder is modelled by using an interface element mesh. In the present paper, we have demonstrated pre- and post-processor finite elem ent software, written in Visual Basic, to generate the graphical model and visua lly display the computed results. The software consist of three main part: · Pre-processor: It is used to create the model, generate an app ropriate finite element grid, apply the appropriate boundary conditions, and vie w the total model. The geometric model can be used to associate the mesh with th e physical attributes such as element properties, material properties, or loads and boundary conditions. · Analysis: It can deal with two-dimensional and axi-symmetric applications for linear and non-linear behaviour of material in static and dyna mic analyses. Both triangular and quadrilateral elements are available in the e lement library, including 3-noded, 6-noded and 7-noded (T6B1) triangles and 4 -noded, 8-noded and 9-noded quadrilaterals. The direct implicit algorithm bas ed on the generalized Newmark scheme is used for the time integration and an aut omatic time step control facility is provided. For non-linear iteration, choice s among fully or modified Newton-Raphson method and quasi-Newton method, using the initial stiffness method, Davidon inverse method or BFGS inverse method, ar e possible. · Post-processor: It provides visualization of the computed resu lts, when the finite element model and analysis have been completed. Post-proce ssing is vital to allow the appropriate interpretation of the completed results of the finite element analysis. It provides the visual means to interpret the va st amounts of computed results generated. Finally, the powder behaviour during the compaction of a multi-level component is numerically simulated by the PCS_SUT software, as shown in Fig.1. The predict ive compaction forces at different displacements are computed and compared with the available experimental展开更多
This paper proposes a new cell intuition simulation method which is a combination of intuitive simulation calculation method and the operation of binary image, and applied it in the innovation of the graphic design pr...This paper proposes a new cell intuition simulation method which is a combination of intuitive simulation calculation method and the operation of binary image, and applied it in the innovation of the graphic design process. First of all, we study how to express a variety of graphics, and establish the definition of cell intuitive model, work out the cell intuitive operation process and many new cellular operators such as a variety of matrix blocks crossover operator, a variety of matrix blocks mutation operator, matrix blocks replace operator, matrix blocks compression operator, matrix blocks extension operator. By choosing two or more cells and selecting the artificial selection or fitness selection, we can set up and visualize the design and pick the best design results .Finally, validation is made on this algorithm by an example, and a innovation graphic is also represented.展开更多
文摘The development of economy and industrialization further accelerates the pace of development of graphic design education.The educational system actively adopted two ways of“going out”and“inviting in”to communicate with the western world in graphic design(Zhang,2009).Chinese design began to re-examine its balance between globalization and localization after rapid absorption and international experience digestion.As for the negative influence,it led to the risk of developing short-sightedness in design education.Faced with unprecedented challenges,the graphic design industry was continually expanding its functions.The development of Chinese design cannot entirely rely on its own.There was no doubt that graphic design was indeed facing significant obstacles.The suggestions from the American Institute of Graphic Arts(AIGA)are set very high to achieve;the objectives will be excellent if academia can follow.A study aims to understand the overall curriculum and course design and how best to modify the general curriculum and course design to allow for industry practices changes and keep a close eye on the Chinese market's changing needs for design should be carried out.
文摘With the continuous development of the national economy and the improvement of the design industry,the wayfinding system has gradually been accepted and valued by the public,and the research on the wayfinding system of the public environment has become more and more in-depth.In recent years,the research on the wayfinding system has begun to develop into the integration of human culture and cultural implantation in the environment,forming a new visual system design concept,Environment Graphic Design.With the deepening of research,environmental graphic design has once again developed and deepened,studying the detailed experience of people in the environment and presenting it in the form of graphic design.That is,Experience Graphic Design.This article will discuss the application of environmental graphic experience design in the construction of characteristic tourism from the perspective of signage design.
文摘Currently, The current flat design has become a mainstream approach is widely used in web design, computer and mobile phone systems, interface design. In graphic design, graphic symbol design is increasingly being taken seriously and use minimalist design symbols often appear in print design plane, PPT presentations, public areas, identity-oriented system like. This paper discusses the design of graphical symbols flat in graphic design use need to make the audience cognitive ability, graphic symbols standardized principles, design principles angles for effective information design to achieve efficient information communication. Materialized mostly graphic image symbols, and mostly flat graphic indicator; flat screen symbol by the proposed development materialized symbol interface evolved. Materialized the graphical interface and the graphical interface is flat coexist and cannot replace each other. During the design, the designer should be based on the advantages and disadvantages of the two styles complement each other interfaces, common graphical interface design services.
文摘In this paper, we conduct research on the novel mode of plane graphic design from the core angle of the primary visual language transmitting. Relationship between nationality and cosmopolitan processing in graphic design in the design of image symbol expression and significance of the symbol on the one hand require symbolic form must have enough openness and the cognitive function on the other hand with semiotics method can let the designer to extract the most representative and symbolic notation style to carry on the design expression. As a non- verbal symbols, from the perspective of the view, the design image is no national boundaries, but the human form to beauty and should express the symbolism of cognition is the same. In the form of the ethnic groups of the cosmopolitan codes are for identification of Chinese contemporary design possible effective methods. Our research proposes novel perspective of the design which is meaningful.
文摘With the advent of the informatian age, people are working to build a new knowledge network, knowledge of the past gradually pieced together again. The new knowledge network includes not only advanced science and technology, but also includes the historical and cultural value, emotion and sense of innovation. Graphic design is a spiritual and material reality and artistic, aesthetic and practical disciplines integrated with each other. Always take the old approach to their creative confined in a narrow space, and this will inevitably lead to failure. Graphic design must rely on the sense of innovation, combined with the image of abstract thinking; ideas can really create unique designs. Therefore, to enhance training in graphic design innovative design capabilities, innovation and the development of graphic design is an important issue. In this paper, graphic design requirements and the role of innovation capacity will be explared, and the method of application of proposed innovative thinking in graphic design process will be provided.
文摘This article is based on personal visits to Louisiana State University in the United States.It analyzes and introduces the hotspots of curriculum design,training methods,learning environment,professional ability and quality training of graphic design majors in American public comprehensive universities.Analyze the teaching concepts and methods that are inspiring for the relevant design courses for our country from a personal perspective,and gain insights into the deep-seated problems in the cultivation of design innovation capabilities in China and the United States,in order to arouse everyone’s reflection and further develop our country’s design educational reform ideas.
文摘With spreading and deepening of intangible cultural heritage protection movement in this century, Chinese ink art is among the Masterpieces of the Oral and Intangible Heritage of Humanity. Institutions of higher education is an academic heritage, culture, communication, personnel training platform and carrier, we assume an important role in the protection of heritage and ink art. Modem design teaching is in order to better local cultural heritage, but also to change their design education, more and more traditional elements are used in the classroom student design works. This paper aims to cultural connotations of traditional Chinese ink painting itself carrying elements and aesthetic charm of the excavation, analysis and sorting, which will be teaching in their designs into modem art. The contemporary art and design are to make cultural connotation and aesthetic meaning, making a good combination of tradition and art.
文摘By analyzing the courses of graphic design major, the author points out that it is necessary to put Chinese traditional culture into courses of graphic design, which can open up students＇ design ideas, optimize their design styles and awareness, as well as improve their moral cultivation. The paper elaborates the influences and realistic significance of Chinese traditional culture on graphic design from perspectives of national cultural development, design communication and teaching application. It emphasizes the specific impacts and penetration of the traditional culture in the teaching of graphic design, including teaching content, teaching concepts, and basic teaching practices, etc. With multi- level elaboration, multi-angle exposition and multi-instance citation, it shows the methods to involve Chinese traditional culture in graphic design
文摘As a cradle for cultivating and delivering graphic design professionals,the graphic design major in universities should keep up with the times,guided by the“Opinions on Deepening Undergraduate Education and Teaching Reform,and Comprehensively Improving the Quality of Talent Cultivation,”deepen teaching reform,and enhance the quality of talent cultivation.Based on this,this article analyzes the existing problems in the teaching of graphic design major and actively explores its teaching reform path,in order to promote the in-depth implementation of graphic design major teaching and even the entire graphic design teaching reform,comprehensively improve the quality of graphic design talent cultivation,and promote the great reform and development of higher education.
文摘The graphic design industry has been developing rapidly in recent years.People have begun to focus on steering the development of graphic design in the direction of localization,integrating more traditional Chinese elements,raising the level of acceptance toward graphic design content,and disseminating traditional culture on this basis.Ink art plays an important role in the historical and cultural development process.It uses simple color contrast to construct different situations and possesses unique artistic charm and cultural heritage.Incorporating ink elements into graphic design may enhance the graphic design style and provide inspiration.This article focuses on the reasons,advantages,and strategies of using ink art in graphic design imagery,hoping to provide references for graphic design activities.
文摘At this stage, the overall development momentum of China's computer industry is steady and improving. The material life of the public is increasingly rich. It promotes the visual enjoyment of goods and indirectly promotes the correlation between graphic design and daily life of the public, which puts forward a severe test for graphic designers' daily work. As graphic design is an important carrier of visual art performance, the organic integration of color language can effectively enhance the comprehensive effect of graphic design and provide more beautiful and comfortable commodity design for the public. In order to meet the aesthetic needs of the public, designers should pay more attention to the practical application of color language and give full play to the positive advantages of color language.
文摘The relationship between arts and mathematics is very close, computer graphic design is based on digital methodology. The paper reveals the mathematical backgrounds behind graphic design by the example of computer-aided cubic modeling and mathematical exchange methodology. Furthermore, one can get incredible artistic effects if computer graphic designers pay more attention to the probability and use probable numbers and fractal operation in their design activities.Finally, the author also discusses the bidirections between arts and mathematics.
基金National Natural Science Foundation of China (No. 62001061)。
文摘In this article,a graphic design method for broadband Doherty power amplifier(DPA) is proposed based on the basic principle of impedance matching with the help of Smith chart.The proposed graphic method avoids the complex formula derivation in the traditional amplifier circuit design process,and the design process is more simple and intuitive.Besides,it only takes three steps to build the load modulation network(LMN) of two power amplifiers(PA) of the DPA.Besides,a capacitor is used to replace the parasitic parameters of the transistor,and the LMN designed in the two modes is used for exploration and comparison.Further more,the output impedance of the peaking PA is introduced to make the reflection coefficient trajectory on Smith chart lowfrequency dispersion so as to expand the bandwidth of the DPA at the output power back-off(OBO) level.It would not affect the performance of DPA in the saturation(SAT) state.In this way,a broadband DPA can be implemented easily.To validate the proposed design method,a broadband DPA operating from 1.9to 2.6 GHz is designed and measured based on the proposed method.Under the continuous-wave excitation,the fabricated DPA has a 6 dB OBO efficiency of 48%-56% and a SAT efficiency of 64%-73% from 1.75 to 2.45 GHz,and the peak output power is 48.9-49.8 dBm.
文摘Nowadays, display design has become an art form. Graphic design and environment design play an important role in display. Graphic and space environment have a delicate relationship in display design, like two brothers, sometimes they are opposite and sometimes they are in cooperation. The exhibition industry makes an organic integration of different disciplines, and develops more extensive forms. It studies the importance of graphic design, which takes environment design as the carrier to effectively convey the profound connotation of display.
文摘Virtually all conventional optimizations are Performed in a batch computer environment. No graphic information during the optimization process is provided. The research tactics and implementation procedure of interactivegraphics in mechanical optimum design are presented. An interactive Graphics Mechanical Optimum Design Program(IGMODP) for microcomputers is developed. The example of wheeled loader' s working device optimum design usingIGMODP is carried out.
文摘As computer simulation increasingly supports engine er ing design and manufacture, the requirement for a computer software environment providing an integration platform for computational engineering software increas es. A key component of an integrated environment is the use of computational eng ineering to assist and support solutions for complex design. Computer methods fo r structural, flow and thermal analysis are well developed and have been used in design for many years. Many software packages are now available which provi de an advanced capability. However, they are not designed for modelling of powde r forming processes. This paper describes the powder compaction software (PCS_SU T), which is designed for pre- and post-processing for computational simulatio n of the process compaction of powder. In the PCS_SUT software, the adaptive analysis of transient metal powder forming process is simulated by the finite element method based on deformation theories . The error estimates and adaptive remeshing schemes are applied for updated co -ordinate analysis. A generalized Newmark scheme is used for the time domain di scretization and the final nonlinear equations are solved by a Newton-Raphson p rocedure. An incremental elasto-plastic material model is used to simulate the compaction process. To describe the constitutive model of nonlinear behaviour of powder materials, a combination of Mohr-Coulomb and elliptical yield cap model is applied. This model reflects the yielding, frictional and densification char acteristics of powder along with strain and geometrical hardening which occurs d uring the compaction process. A hardening rule is used to define the dependence of the yield surface on the degree of plastic straining. A plasticity theory for friction is employed in the treatment of the powder-tooling interface. The inv olvement of two different materials, which have contact and relative movement in relation to each other, must be considered. A special formulation for friction modelling is coupled with a material formulation. The interface behaviour betwee n the die and the powder is modelled by using an interface element mesh. In the present paper, we have demonstrated pre- and post-processor finite elem ent software, written in Visual Basic, to generate the graphical model and visua lly display the computed results. The software consist of three main part: · Pre-processor: It is used to create the model, generate an app ropriate finite element grid, apply the appropriate boundary conditions, and vie w the total model. The geometric model can be used to associate the mesh with th e physical attributes such as element properties, material properties, or loads and boundary conditions. · Analysis: It can deal with two-dimensional and axi-symmetric applications for linear and non-linear behaviour of material in static and dyna mic analyses. Both triangular and quadrilateral elements are available in the e lement library, including 3-noded, 6-noded and 7-noded (T6B1) triangles and 4 -noded, 8-noded and 9-noded quadrilaterals. The direct implicit algorithm bas ed on the generalized Newmark scheme is used for the time integration and an aut omatic time step control facility is provided. For non-linear iteration, choice s among fully or modified Newton-Raphson method and quasi-Newton method, using the initial stiffness method, Davidon inverse method or BFGS inverse method, ar e possible. · Post-processor: It provides visualization of the computed resu lts, when the finite element model and analysis have been completed. Post-proce ssing is vital to allow the appropriate interpretation of the completed results of the finite element analysis. It provides the visual means to interpret the va st amounts of computed results generated. Finally, the powder behaviour during the compaction of a multi-level component is numerically simulated by the PCS_SUT software, as shown in Fig.1. The predict ive compaction forces at different displacements are computed and compared with the available experimental
基金Partially supported by"863"High-tech Research and Development Program(No.2001AA412011)National Natural Science Foundation of China(No.60174037,No.50275013)+2 种基金Education office of Liaoning Province(No.LR2013060)Natural Science Foundation of Liaoning Province(No.2013020123)Shenyang Science and Technology Plan Project(F14-231-1-20)
文摘This paper proposes a new cell intuition simulation method which is a combination of intuitive simulation calculation method and the operation of binary image, and applied it in the innovation of the graphic design process. First of all, we study how to express a variety of graphics, and establish the definition of cell intuitive model, work out the cell intuitive operation process and many new cellular operators such as a variety of matrix blocks crossover operator, a variety of matrix blocks mutation operator, matrix blocks replace operator, matrix blocks compression operator, matrix blocks extension operator. By choosing two or more cells and selecting the artificial selection or fitness selection, we can set up and visualize the design and pick the best design results .Finally, validation is made on this algorithm by an example, and a innovation graphic is also represented.
