中英文翻译--虚拟制造技术.doc

Virtual Manufacturing What is Virtual Manufacturring Virtual manufacturing(VM) is an integrated, synthetic manufacturing environment exercised to enhance all leveles of decision and control in a manufaceturing enterprise. VM can be described as a simulated model of the actual manufacturing setup which may or may not exist. It holds all the information relating to the process , the process control and management and product specific data. It is also possible to have part of the manufacturing plant be real and the other part virtual . Virtual manufacturing is the use of computer models and simulations of manufacturing process to aid in design and production of manufactured products. Lawrence Associate[1996], have identified three different types of Virtual Manufacturing paradigms that use Virtual Reality technology to provide the integrated environment. (1)Design-centered VM: provides designers with the tools to design products that meet design criteria such as design for X (2)Production-centered VM: provides the means develop and analyse alternative production the process plans; (3)Control-centered VM: allows the evaluation of product design, production plans, and control strategy and a means to iteratively to improve all of them through the simulation of the control process. What is the Significance of VM VM aims at providing an integrated environment for a number of isolated manufacturing technologies such as Computer Aided Design , Computer Aided Manufacturing, and Computer Aided Process Planning, thus allowing multiple users to concurrently carry out all or some of these functions without the need for being physically close to each other. For example, a process planning engineer and a manufacturing engineer can evaluate and provide feedback to a product designer, who may be physically located in another state or country, at the same time as the design is being conceived. Another important contribution of VM is Virtual Engerprise(VE). Lin et al[1995] defined a Vi