Research Of Parts Reachability Analysis And Dismantling Path-planning For DMU Based On CATIA

Maintainability verification is the important link in the process of mechanical productdesign. The purpose of verification is to ensure that each components in mechanicalsystem has good maintainability. At present, usually by the total design of mechanicalproducts unit organization technical personnel for electronic prototype implementation ofthe verification work. The implementation is usually artificial estimate of the form. In theprocess of inspection, inspectors mainly rely on experience to determine the mechanicalparts of the system’s maintainability. Under the condition of the mechanical systemprecision and complex, not only on the degree of experienced inspectors should have veryhigh requirements, need more long work cycle. Such, verification accuracy is difficult tocontrol, and the inspection efficiency is low.In order to improve the detection accuracy and efficiency, The paper have electronicprototype mechanical system with virtual reality technology electronic prototypemaintainability verification methods of exploratory research. With CATIA electronicprototype as a platform, visual basic as a secondary development language, in this paper,the visual reachability, spatial reachability and parts disassembly path planning wasstudied.Used in visual observation points and the inspected parts between the contour pointsof building virtual light method, to examine whether the parts are visible and the visiblearea calculation method has been studied; Based on CATIA platform virtual humanmotion and collision detection characteristics, research a kind of new and high efficiencyof the virtual arm attitude control method to solve the mechanical components of spatialaccessibility verification question; According to the characteristics of the rapid expandedrandom tree algorithm and the research contents of this subject, to improve the rapidexpanded random tree method, and applied the method to solve the electronic prototypeparts disassembly path planning problem. Finally, through the analysis of mechanicalproducts, electronic prototype experiments to verify the effectiveness of the method in thisresearch.