Traditional project effort estimation utilizes development models that span the entire project life cycle and thus culminates estimation errors. This exploratory research is the first attempt to break each project act...Traditional project effort estimation utilizes development models that span the entire project life cycle and thus culminates estimation errors. This exploratory research is the first attempt to break each project activity down to smaller work elements. There are eight work elements, each of which is being defined and symbolized with visually distinct shape. The purpose is to standardize the operations associated with the development process in the form of a visual symbolic flow map. Hence, developers can streamline their work systematically. Project effort estimation can be determined based on these standard work elements that not only help identify essential cost drivers for estimation, but also reduce latency cost to enhance estimation efficiency. Benefits of the proposed work element scheme are project visibility, better control for immediate pay-off and, in long term management, standardization for software process automation.展开更多
针对物流仓储中危险品搬运的特殊需求,根据实用功能需求和以往搬运机器人的性能要求,设计了一种码垛机器人。介绍了机器人的总体及其重要部件的设计功能。通过布局草图设计零件模型,采用自上而下的建模方法,利用Solid works对三自由度...针对物流仓储中危险品搬运的特殊需求,根据实用功能需求和以往搬运机器人的性能要求,设计了一种码垛机器人。介绍了机器人的总体及其重要部件的设计功能。通过布局草图设计零件模型,采用自上而下的建模方法,利用Solid works对三自由度码垛机器人的基本结构及组成部件进行建模,利用Solid works simulation插件进行了装配干涉检查并对其关键部件的设计进行了分析,以确保关键部位可靠性和安全性。分析结果显示,该机器人在满负载情况下,车架的设计能够满足危险品物流自动化的需求,因而提供了一种实用型的码垛机器人的特殊设计。展开更多
介绍了PY G B-1821型液压圆锥破碎机的工作原理、结构特点。并运用Solid W orks软件对PY G B-1821型破碎机各零件进行三维建模设计、虚拟装配和有限元分析,既改善了二维设计不直观的状况,又便于参数化修改和调整设计模型,大大提高了设...介绍了PY G B-1821型液压圆锥破碎机的工作原理、结构特点。并运用Solid W orks软件对PY G B-1821型破碎机各零件进行三维建模设计、虚拟装配和有限元分析,既改善了二维设计不直观的状况,又便于参数化修改和调整设计模型,大大提高了设计水平和设计效率,为圆锥破碎机的优化设计提供了有效参考。展开更多
文摘Traditional project effort estimation utilizes development models that span the entire project life cycle and thus culminates estimation errors. This exploratory research is the first attempt to break each project activity down to smaller work elements. There are eight work elements, each of which is being defined and symbolized with visually distinct shape. The purpose is to standardize the operations associated with the development process in the form of a visual symbolic flow map. Hence, developers can streamline their work systematically. Project effort estimation can be determined based on these standard work elements that not only help identify essential cost drivers for estimation, but also reduce latency cost to enhance estimation efficiency. Benefits of the proposed work element scheme are project visibility, better control for immediate pay-off and, in long term management, standardization for software process automation.
文摘针对物流仓储中危险品搬运的特殊需求,根据实用功能需求和以往搬运机器人的性能要求,设计了一种码垛机器人。介绍了机器人的总体及其重要部件的设计功能。通过布局草图设计零件模型,采用自上而下的建模方法,利用Solid works对三自由度码垛机器人的基本结构及组成部件进行建模,利用Solid works simulation插件进行了装配干涉检查并对其关键部件的设计进行了分析,以确保关键部位可靠性和安全性。分析结果显示,该机器人在满负载情况下,车架的设计能够满足危险品物流自动化的需求,因而提供了一种实用型的码垛机器人的特殊设计。
文摘介绍了PY G B-1821型液压圆锥破碎机的工作原理、结构特点。并运用Solid W orks软件对PY G B-1821型破碎机各零件进行三维建模设计、虚拟装配和有限元分析,既改善了二维设计不直观的状况,又便于参数化修改和调整设计模型,大大提高了设计水平和设计效率,为圆锥破碎机的优化设计提供了有效参考。
