【摘要】 机械产品设计决定了75%~80%的产品成本,并在很大程度上决定了生产产品的效率和产品的使用性能。定量化的评价虚拟设计周期一直是困扰产品设计者的难题。文章应用产品设计计划评审技术(PERT)对机械产品应用虚拟设计和传统设计的设计周期进行定量化对比。通过对比,机械产品分别采用虚拟设计与传统设计,虚拟设计周期明显缩短,缩短设计周期达40%以上,且同样设计周期的情况下,采用虚拟设计完成设计的概率比采用传统设计要高得多。更多还原

【Abstract】 75% to 80% of the product cost is determined by mechanical product design,and to a large extent the efficiency of the production of products and product performance are also determined.Quantitative evaluation of the virtual design cycle has been plagued product designers.In this paper,Program Evaluation and Review Technique(PERT) is used to compare quantitatively the design cycle between virtual design and traditional design.By way of comparison between the virtual design and traditional design used in the design process for the mechanical products,virtual design cycle was shortened the design cycle by more than 40 percent. And at the circumstances of same design cycle,the completion probability of using virtual design is much higher than the designs of using traditional design.更多还原