The FEM Analysis of a Real Compressor Housing
The task to compare finite element models with real components sometimes can be a hard and awful task,specially when the component has a complex geometry.This situation is very common when dealing with stamping parts.In this way,when the numerical results do not match with the experimental ones a crucial doubt arises: Is the numerical model inadequate or is the real component out of specification? To answer this question one may follow the traditional way of Reverse Engineering.This process consists of digitizing the component using any kind of commercial scanner and reconstructing the geometry using the scan data (point cloud).One disadvantage of this method is the task required to model the surface which can be very time consuming depending on the shape or geometry.There is also a lack of accuracy in the process chosen to build the surface over hundreds or thousands of points.The final step is to create the mesh,solve the finite element model and analyze the results.Another alternative,which is the scope of this paper,is the polygonalization of the scan data.Using STL format,one can create a finite element mesh straight from the triangles.It is possible to fix or to improve the mesh quality followed by the solution and the results analysis.The two processes described in this paper are illustrated on a modal analysis of a sheet metal stamped component (a shell cover),which shows the speed and accuracy of the applied methodology.
FEM FEA Modal analysis Reverse engineering Compressor Housing Digitizing
Marcos Giovani Dalton Hardt
Embraco Rua Rui Barbosa,1020 89219-901 Joinville,SC-Brazii Embraco Rua Rui Barbosa,1020 89219-901 Joinville,SC-Brazil
国际会议
第六届压缩机与制冷国际会议(The 6th International Conference on Compressor and Refrigeration(ICCR))
西安
英文
256-263
2008-09-25（万方平台首次上网日期，不代表论文的发表时间）