The Optimizing Analysis Of Flexible Body For New Type Of Engine With Multi-connecting Rod Mechanism

Although it is rather hard to realize the technology of variable compression ration among all variable technology, it is more efficient than other technologies to improve the circular thermal efficiency and performance of internal combustion engine. Therefore, in recent years, mobile companies and famous institutions in the world have rolled out their own projects, and technology of variable compression ration has become the major subject, among which technology of variable compression ration of multi-connected rods has caught world eyes.In my project, with the development of the technology, we did a feasible research on application of a new style of multi-connected rods working on the internal compression engine. By the methods of integration of theoretic analysis, numerical value calculation and advanced computer dynamic emulation and display technology, we studied the organic rule of new style internal compression engine with multi-rod organ, and explored optimizing projects and its approach which was realized on the traditional piston ones. Connecting the functions of modeling of PRO/E software of 3-D CAD and movement process of emulated engines, we can simulate movement process of emulated engines on the condition that modeling is exact. Then we can reach all kinds of data parameter of kinematics and dynamics of new style internal compression engines. According to data of kinematics and dynamics calculated by simulated emulator, multi-rod machine was made organic design and optimization to achieve the needed model.We can obtain all kinds of kinematics and dynamic data from using the PRO/E and ADAMS. According these data we can design the connecting rods and also we can use these data as limit condition to do finite elements analysis. Meanwhile, the emulated result of dynamics of ADAMS could to regard as frontier of finite analysis, which distortions of rods and parts could be more accurately and sized. Finally, when we finished process of parts and assemble of new style internal compression engines, we should test pilot engines to validate effect of key parameter of new style organ to the performance of the whole machine and discover its improved mechanism.