Tao Zhen

A study on shape optimization of bus body structure based on stiffness sensitivity analysis

The research of autobody lightweight technology is an important mainstream in the autobody design. In this paper A FEM model for the unitary body of a home-made bus is established .Then optimization design variables are determined through stiffness sensitivity analysis and by using finite element analysis software, an optimization is conducted, based on which a lightweighting scheme is put forward. The experiment indicated that after appropriate optimization the mass of the whole car body decrease 19.35Kg and the stiffness of the autobody maintained invariable.

Application of computer aided technology on microgripper based on GMM design

In order to overcome the shortcomings of the present microgripper, a new type of microgripper based on GMM was presented. Microgripper based on GMM is a type of microgripper based on giant magnetostrictive material. Driving force is provided by the expansion and shrinkage of GMM in magnetic field. Using giant magnetostrictive material to drive microgripper can not only realize quick response and large output force, but also control output force easily. This paper showed that how to apply computer aided technology into microgripper based on GMM design. Application of 3D solid modeling based on KBE can optimize the design of microgripper construction. Microgripper magnetic field can be analyzed through CAE. Clamp simulation of microgripper can be realized through VRML. The application of computer aided technology in the new type of microgripper design may significantly reduce the microgrippers design cost and design cycle.