| Type products are high integration of modern high and new technologies, which play an irreplaceable role in promoting economic development, national defense and upgrading of equipment manufacturing industry. Current ages characteristics require that type product manufacturing industry must have the ability to design, manufacture and organize mass production according to specific demands. To increase designing/manufacturing efficiency of domestic type products, shorten the cycle of designing/manufacturing and improve the competitive force of the type product manufacturing enterprises, this thesis studied key supporting technologies on building distributed collaborative designing/manufacturing system for type products. The main content of this study is as follows:CAD collaborative supporting technology. Focusing on CAD collaborative questions encountered in the course of collaborative designing/manufacturing for type products, equivalennt and inverse transformation from CAD models to feature information files was realized by studying technologies of feature extraction and model refactoring. Fast transmission of large 3D CAD models was implemented by using the characteristic that feature information files are almost two orders of magnitude smaller than files of CAD models. A difference analyzing algorithm of the smaller files was designed and the difference analyzing function of CAD models was implemented by integrating feature rendering technology, on the basis of which, the merging rules of models was designed and asynchronous modeling of CAD (i.e. version merging) was realized. Universal framework of transforming heterogeneous CAD models was also designed and realized based on the technology of feature extraction and model refactoring.Technology of data processing control. An intelligent data batch processing control model based on software Agent was introduced in order to manage search of overwhelming amount of data. The model analyzes behavior characteristic of data processing by using Agent's study ability and records it in the belief library of Agent. With environment sensor, when a request arrives, Agent gets data about system load, bandwidth of user, and so on. Then combining the old request characteristics and using reasoning processing, Agent works out the optimal data volume to be processed of this request, which will be controlled by control flow that has been changed by execute plan. Integrating collaborative platform with this model may ensure the user's response time, shorten waiting time and smooth the peak value of system load.Technology of collaborative modeling. To better support modeling and analyzing of collaborative tasks an extended Petri net with condition information (ECPN) was investigated. It makes up the deficiency of current Petri nets that cannot intelligently select next transaction path according to the performance of current task. Moreover, a Petri net extended with condition and probability information (PCPN) was proposed by introducing probability information, which realized the function of analyzing all tasks and possible task collections. The reachable path, deadlocked path, probability computing method of the extended Petri net, and, the method to solve deadlocking are given. Also, extending time Petri net with condition information illustrates the universality of the extending method.Other technologies. The functions that the system should have and related implementation technologies were induced. The principal framework of collaborative system was established by using Grid technology. The method to integrate submodules based on ActiveX technology was studied. Technology of data persistent layer based on operation chain provides a flexible, reliable and high reusable solution for data access service of collaborative system. Software programs of collaborative system were developed and applied to the project of collaborative designing/manufacturing for one type product, which validated the research results of this thesis and improved the efficiency of designing/manufacturing of this product.This research has provided theoretical and application support for the designing/manufacturing for type products and narrowed the gap with foreign technical level.
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