Comparison of boundary element and finite element methods in spur gear root stress analysisThe boundary element method (BEM) is used to compute fillet stress concentration in spur gear teeth. The results are shown to compare favorably with analogous results obtained using the finite element method (FEM). A partially supported thin rim gear is studied. The loading is applied at the pitch point. A three-dimensional analysis is conducted using both the BEM and FEM (NASTRAN). The results are also compared with those of a two-dimensional finite element model. An advantage of the BEM over the FEM is that fewer elements are needed with the BEM. Indeed, in the current study the BEM used 92 elements and 270 nodes whereas the FEM used 320 elements and 2037 nodes. Moreover, since the BEM is especially useful in problems with high stress gradients it is potentially a very useful tool for fillet stress analyses.
Document ID
19900034052
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Sun, H. (Cincinnati Univ. OH, United States)
Mavriplis, D. (Cincinnati Univ. OH, United States)
Huston, R. L. (Cincinnati, University OH, United States)
Oswald, F. B. (NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
August 14, 2013
Publication Date
January 1, 1989
Subject Category
Mechanical Engineering
Meeting Information
Meeting: 1989 International Power Transmission and Gearing Conference