Research On Type Of Micro-transmission Elements With Large Ratio Between Height And Width

With the development of micro-machine, it's design and theory study is becoming a completely new study in the field of machine. In the field of MEMS, using the advanced computer technology and finite element method (FEM), micro-gear's parameter design is discussed in this paper, enduring force condition is analyzed and pictures of stress effecting result are processed. Firstly, according to the characters of micro-gear with the "m" which is smaller than 'KTV' , meshing model of micro-gear is set up and it's characters are calculated. Especially for the selection of micro-gear's deflection coefficient, the C++ computer program is programmed. In the environment of ANSYS, with the dots' coordination values of micro-gear what we have got, the two direction model is got, through the "Protrusion" the micro-gear's three direction model with large ratio between height and width is got.Restrain conditions and loads is exerted on the 3D analysis finite element model, material characteristic parameters are provided and 3D brick unit are selected, the FEM calculation and analysis is done to get every pot's stress of micro-gear model and the displacement under the stress what we have got.The finite element results are processed with the software of ANSYS5.61. By this method, the stress ? displacement and the biggest stress element can be observed on the screen expediently, so the micro-gear's load condition can be analyzed .With the good combination of the advanced algorithm and software, the calculating and modeling programs are made to do 3D imitating processing of micro-gear successfully andget the perfect analyzing results, which are made the foundation for the theory study of micro-machine.