自1980年Leo Fender与George Fullerton正式创立G&L以来,该品牌始终与高品质乐器相关联——但主要生存在Leo Fender首个同名公司、巨头Fender的阴影之下。数十年来,G&L推出了ASAT、S-500、Skyhawk、Nighthawk、Climax、Legacy以...自1980年Leo Fender与George Fullerton正式创立G&L以来,该品牌始终与高品质乐器相关联——但主要生存在Leo Fender首个同名公司、巨头Fender的阴影之下。数十年来,G&L推出了ASAT、S-500、Skyhawk、Nighthawk、Climax、Legacy以及Jerry Cantrell钟爱的Rampage等一系列型号——在Alice in Chains乐队“Man in the Box”音乐视频中,这位垃圾摇滚吉他手挥舞的正是此款吉他。展开更多
In the designing of the flexible fender pile, M-method is usually adopted. But M-method is usable only in the case that the value of the force (moment M and shear force Q) exerted on the pile above the soil is known. ...In the designing of the flexible fender pile, M-method is usually adopted. But M-method is usable only in the case that the value of the force (moment M and shear force Q) exerted on the pile above the soil is known. In practical cases, only the percussive energy of the ship can be found, while the exact value of the percussive force cannot be computed directly. In this paper, a method is introduced which can be used to calculate the inner force of flexible fender piles by a computer in these cases. First, according to the known docking dynamic energy of a ship, the absorbed energy can be found from the deformation of the pile and the rubber fender respectively, at the same time the value of the force acting on the fender piles and the reaction of fenders can be calculated. Then the inner force and displacement of the fender piles can also be calculated further by M-method. The whole computing process is realized by a computer program and the results obtained are reasonable. In this paper, the computation, the iteration method and the computer program are all expounded in detail. This method can be applied to the design of fender piles and type selection of rubber fenders in practical projects.展开更多
Automotive lightweight and safety performance come into play as key technologies to promote competiveness, and average applied amount of automotive plastics has become a significant sign for automotive industrial deve...Automotive lightweight and safety performance come into play as key technologies to promote competiveness, and average applied amount of automotive plastics has become a significant sign for automotive industrial development level of a country.Various performances of a vehicle with plastic automotive fenders are analyzed in the paper.The research is emphasized on sinking-resistance and pedestrian protection performance of the plastic fenders by studying plastics characteristics and simulation analysis.It offers references for engineering design in which both automotive lightweight and safety performance are achieved and well balanced.展开更多
This paper analyzes fender selection process in berth design and focuses on the case of a rigid berth with rubber cone fenders.Fender types and performance comparison methods are studied along with current numerical m...This paper analyzes fender selection process in berth design and focuses on the case of a rigid berth with rubber cone fenders.Fender types and performance comparison methods are studied along with current numerical models.Berth design methods are analyzed with a focus on berthing energy calculation and fender selection.A new approach to determine the required fender capacity is suggested.A finite elements rubber cone model is tested and used in simulations of angular side berthing.Results show that the energy absorbed by the fender can be much higher than what can be calculated with the current berth design method.A new form for the expression of the energy that must be absorbed by the fender during angular berthing impact is suggested.展开更多
Steel fenders are increasingly used for ship-impact resistance structures in the design of navigable bridges. As an important approach to investigating this anti-impact structure effectiveness to reduce influences of ...Steel fenders are increasingly used for ship-impact resistance structures in the design of navigable bridges. As an important approach to investigating this anti-impact structure effectiveness to reduce influences of vessel impact, simulation analyses are still not perfect yet. So this paper is intended to discuss several issues related to ship collision simulations, including steel constitutive relationship, connections between steel box and pile cap, contacts definition and friction consideration, and the determination of impact waterlines and angles. Consequently based on two examples of ship-steel fender-bridge structure systems, some conclusions about effectiveness and design of fenders to reduce ship impact are drawn.展开更多
Eric Johnson不仅是位出众的吉他手,他还是一名很有品位的艺术鉴赏家,从他指间滑出的音符充满了甜蜜的爱意与美丽的畅想!
提起Eric Johnson,我想大家再熟悉不过了,他毕生都在追求完美的吉他旋律与和声,他那带有魔法般的手指落... Eric Johnson不仅是位出众的吉他手,他还是一名很有品位的艺术鉴赏家,从他指间滑出的音符充满了甜蜜的爱意与美丽的畅想!
提起Eric Johnson,我想大家再熟悉不过了,他毕生都在追求完美的吉他旋律与和声,他那带有魔法般的手指落在他的吉他上简直就像行云流水一样,一切那么的自然、和谐.如此这般的吉他大师怎能缺少一把适合自己的"御用吉他"?……展开更多
文摘自1980年Leo Fender与George Fullerton正式创立G&L以来,该品牌始终与高品质乐器相关联——但主要生存在Leo Fender首个同名公司、巨头Fender的阴影之下。数十年来,G&L推出了ASAT、S-500、Skyhawk、Nighthawk、Climax、Legacy以及Jerry Cantrell钟爱的Rampage等一系列型号——在Alice in Chains乐队“Man in the Box”音乐视频中,这位垃圾摇滚吉他手挥舞的正是此款吉他。
文摘In the designing of the flexible fender pile, M-method is usually adopted. But M-method is usable only in the case that the value of the force (moment M and shear force Q) exerted on the pile above the soil is known. In practical cases, only the percussive energy of the ship can be found, while the exact value of the percussive force cannot be computed directly. In this paper, a method is introduced which can be used to calculate the inner force of flexible fender piles by a computer in these cases. First, according to the known docking dynamic energy of a ship, the absorbed energy can be found from the deformation of the pile and the rubber fender respectively, at the same time the value of the force acting on the fender piles and the reaction of fenders can be calculated. Then the inner force and displacement of the fender piles can also be calculated further by M-method. The whole computing process is realized by a computer program and the results obtained are reasonable. In this paper, the computation, the iteration method and the computer program are all expounded in detail. This method can be applied to the design of fender piles and type selection of rubber fenders in practical projects.
基金Supporting Program of the"Twelfth Five-year Plan"for Sci & Tech Research of China(No. 2011BAG03B02No.2011BAG03B06)
文摘Automotive lightweight and safety performance come into play as key technologies to promote competiveness, and average applied amount of automotive plastics has become a significant sign for automotive industrial development level of a country.Various performances of a vehicle with plastic automotive fenders are analyzed in the paper.The research is emphasized on sinking-resistance and pedestrian protection performance of the plastic fenders by studying plastics characteristics and simulation analysis.It offers references for engineering design in which both automotive lightweight and safety performance are achieved and well balanced.
基金the National Natural Science Foundation of China(Nos.41172251 and 41330633)
文摘This paper analyzes fender selection process in berth design and focuses on the case of a rigid berth with rubber cone fenders.Fender types and performance comparison methods are studied along with current numerical models.Berth design methods are analyzed with a focus on berthing energy calculation and fender selection.A new approach to determine the required fender capacity is suggested.A finite elements rubber cone model is tested and used in simulations of angular side berthing.Results show that the energy absorbed by the fender can be much higher than what can be calculated with the current berth design method.A new form for the expression of the energy that must be absorbed by the fender during angular berthing impact is suggested.
文摘Steel fenders are increasingly used for ship-impact resistance structures in the design of navigable bridges. As an important approach to investigating this anti-impact structure effectiveness to reduce influences of vessel impact, simulation analyses are still not perfect yet. So this paper is intended to discuss several issues related to ship collision simulations, including steel constitutive relationship, connections between steel box and pile cap, contacts definition and friction consideration, and the determination of impact waterlines and angles. Consequently based on two examples of ship-steel fender-bridge structure systems, some conclusions about effectiveness and design of fenders to reduce ship impact are drawn.
文摘 Eric Johnson不仅是位出众的吉他手,他还是一名很有品位的艺术鉴赏家,从他指间滑出的音符充满了甜蜜的爱意与美丽的畅想!
提起Eric Johnson,我想大家再熟悉不过了,他毕生都在追求完美的吉他旋律与和声,他那带有魔法般的手指落在他的吉他上简直就像行云流水一样,一切那么的自然、和谐.如此这般的吉他大师怎能缺少一把适合自己的"御用吉他"?……
