This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Forced Structural Response Using Component Mode Synthesis
Annotation ability available
Sector:
Language:
English
Abstract
This paper discusses the effects of omitting constraint modes corresponding to applied loads in systems modeled with component mode synthesis. A method of correcting for the omitted constraint modes is also developed. The free component mode synthesis method is applied to the continuous model of a axial rod-spring system, and the effect of omitted constraint modes on the static, steady state harmonic, and transient response is studied. The effect of omitted constraint modes on the transient response of an asymmetric beam is studied using the free and fixed component mode synthesis implemented in MSC/NASTRAN. A simple pinned truss finite element model is also studied.
Authors
Topic
Citation
Allen, J. and Martinez, D., "Forced Structural Response Using Component Mode Synthesis," SAE Technical Paper 841577, 1984, https://doi.org/10.4271/841577.Also In
References
- Hurty W. C. “Dynamic Analysis of Structural Systems Using Component Modes,” AIAA J. 3 678 685 1965
- Craig R. R. Jr. Chang C-J. “On the Use of Attachment Modes in Substructure Coupling for Dynamic Analysis,” Paper 77-405 AIAA/ASME 18th Struct., Struct. Dyn., and Materials Conf. San Diego, CA 1977
- Rubin S. “Improved Component-Mode Representation for Structural Dynamic Analysis,” AIAA J. 13 995 1006 1975
- Herting D. N. Hoesly R. L. “Development of an Automated Multi-Stage Modal Synthesis System for NASTRAN,” Sixth User's Colloquim Papers NASA Conference Publications 2013 October, 1977
- Herting D. N. “Accuracy of Results with NASTRAN Modal Synthesis,” Seventh NASTRAN Users' Colloquim Papers NASA CP-2062 October, 1978
- Herting D. N. “A General Purpose, Multi-Stage Component Modal Synthesis Method” MacNeal Schwendler Corp.
- Martinez D. R. Gregory D. L. “A Comparison of Free Component Mode Synthesis Techniques Using MSC/NASTRAN” MSC/NASTRAN User's Conference Proceedings The MacNeal-Schwendler Corporation March 1983
- Superelement Handbook MSC/NASTRAN
- Coppolino R. N.
- Ibrahim S. R. Pappa R. S. “Large Modal Survey Testing Using the Ibrahim Time Domain (ITD) Identification Technique.” 22nd Structural Dynamics and Materials Conference Atlanta, Georgia April 1981