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Optimization of an Engine Cradle in Frequency Domain
Technical Paper
2000-01-0599
ISSN: 0148-7191, e-ISSN: 2688-3627
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Event:
SAE 2000 World Congress
Language:
English
Abstract
The application of optimization technique in the frequency domain, to move the frequencies outside certain range, is presented. An engine cradle under development had very high responses in 50 - 60 Hz. range. A modal analysis identified the cause as the mounting springs' natural frequencies. Optimization technique (direct linearization method) was applied to change the spring stiffnesses to move its natural frequencies outside the range of interest. Response plots at various salient locations on the engine cradle, before and after optimization, confirmed the analysis. The large response in the frequency domain was moved outside the 50 - 60 Hz. range.
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Citation
Krishna, M. and Carifo, J., "Optimization of an Engine Cradle in Frequency Domain," SAE Technical Paper 2000-01-0599, 2000, https://doi.org/10.4271/2000-01-0599.Also In
References
- “MSC/NASTRAN Basic Dynamic Analysis User's Guide” Sitton Grant The MacNeal-Schwendler Corporation Los Angles, California, USA 1993
- “Design Sensitivity and Optimization in MSC/NASTRAN” Seminar Notes The MacNeal-Schwendler Corporation Los Angles, California, USA March 1987
- “Elements of Structural Optimization” Haftka, R.T. Kamat, M.P. Martinus Nijhoff Dordrecht 1985