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Implementing Automated Multi-Level Substructuring In Nastran Vibroacoustic Analysis
Technical Paper
2001-01-1405
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Automated Multi-Level Substructuring is a new method for analyzing vibrations of complex structures. Finite element models are automatically divided into thousands of substructures, and response is represented in terms of substructure modes. This method reduces the analysis burden greatly by reducing the computation that must be done, enabling workstations and multiprocessor computing platforms to be used, and reducing disk space requirements and job turnaround time. This paper explains how this method has been implemented for production use in the automotive industry, in conjunction with Nastran software.
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Citation
Bennighof, J., Kaplan, M., Kim, M., Kim, C. et al., "Implementing Automated Multi-Level Substructuring In Nastran Vibroacoustic Analysis," SAE Technical Paper 2001-01-1405, 2001, https://doi.org/10.4271/2001-01-1405.Also In
SAE 2001 Transactions Journal of Passenger Cars - Mechanical Systems
Number: V110-6; Published: 2002-09-15
Number: V110-6; Published: 2002-09-15
References
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- Bennighof, J. K. Kaplan, M. F. Muller, M. B. Kim, M. “Meeting the NVH Computational Challenge: Automated Multi-Level Substructuring,” Proceedings of International Modal Analysis Conference XVIII San Antonio February 2000
- Hurty, W. C. “Dynamic Analysis of Structural Systems Using Component Modes,” AIAA Journal 3 4 678 685 1965
- Craig, R. R., Jr. Bampton, M. C. C. “Coupling of Substructures for Dynamic Analysis,” AIAA Journal 6 7 1313 1319 1968