| タイトル | A finite element method for time varying geometry in multibody structures |
| 著者（英） | Housner, J. M.; Wu, S. C.; Chang, C. W. |
| 著者所属（英） | Comtek Co.|NASA Langley Research Center |
| 発行日 | 1988-01-01 |
| 言語 | eng |
| 内容記述 | A three-dimensional finite element formulation using convected coordinates is presented for the multibody dynamics of truss-like configurations. Unlike existing formulations, the present one does not superimpose nonlinear rigid body kinematics with linear structural mode shapes, an approach that has recently been shown to be grossly inaccurate under certain conditions. Instead, the finite element method is extended to treat large motions/deformations. The formulation is oriented toward joint dominated structures and places the generalized coordinates at the joints. For the planar spin-up of a flexible beam, results are compared with those derived from a commercially available computer program. The two programs predict nearly identical results. |
| NASA分類 | CYBERNETICS |
| レポートNO | 88A32197
AIAA PAPER 88-2234 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/371537 |
