Reverse Study On Vibration System Of Resonant Machine Based On Method Of Simulation And Optimization

Simulating and computing for the reverse designed object and get the reasonable parameter before the design and manufacuturing of the sample model will greatly reduce the design error, and cause less modification and redesign of the model and meanwhile shorten the design circle so that product can be quickly put into the market.In this article, the 3D modeling technology, Finite Element Analysis (FEA), Optimization and dynamic simulation technology are all combined together to do the reverse analysis of vibrating system. The dynamic performance of the vibrating system is studied via dynamic simulation and optimization and a set of parameter value is obtained. With this set of parameters, the dynamic performance of the virtual model is close to the product, which has positive significance to guide the design and manufacturing of the sample model. Meanwhile, the method in this articele can also be referenced by other reverse research activity.The reverse design of principle scheme and structural scheme is discussed. a rapid method using the known solution of the function element to get the principle scheme is proposed. With this method, the principle scheme of the vibrating system is obtained. The structural components of the system is analysed to get the structural diagram.Dynamic analysis of the vibrating system is carried out to pre-determine the parameter, the "rigid-flexible" dynamic model is established in the Multi-Body Dynamic Simulation Package—SIMPACK. The "rigid-flexible" dynamic model is analysed and simulated and the result is compared with the out put of the prototype, the parameter of the dynamic model is adjusted to diminish the gap between the model and the prototype. The material of the vibrating beam is researched and determined.To get the best scheme, the parameters obtained from the dynamic analysis are optimized. The FEA model has been established in the FEA package—ANSYS. And the APDL optimization file is written for the model. The optimization result and the dynamic simulation result are compared to validate the correctness.With the interface between ADAMS, PRO/E and ANSYS, the simplified overall-model of the machine is established in the ADAMS package to do dynamic analysis and study the ride performance of the machine. According the ISO 2631 standard, the ride performance is judged and the parameter is adjusted to meet the ride performance standard.