Product Lifecycle-Oriented Virtual Design Method

Application of digital technique has become very universal in product development. Along with competitive intensification of the market, it is needed urgently that enterprises must develop new design method to improve quality and reduce design lifecycle and cost of product. Supported by the actual project, the product lifecycle-oriented virtual design method has been well investigated. In the design of single and large-scale embark machine, with the applications of multi-body kinematics and dynamics simulation, digital preassembly and function simulation based on Virtual Reality technology, actual running process of product have been proof-tested before manufacturing of physical prototype, and it is possible for producers and users to participate in the design process of product. As the result of simulation, logical and correct sequence of assembly process has been designed by producer, combining the mechanism movement with environment and reasonable sequence of loading process has been validated by equipment operators. So the design mistakes have been avoided furthest, and product design quality and efficiency can be improved greatly. Finally, the thesis indicates the main problem of the research and issues needed further research.