Models for blisks with large blends and small mistuning
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- 作者：Weihan Tanga ; weihant@umich.edu" class="auth_mail" title="E-mail the corresponding author ; Bogdan I. Epureanua ; epureanu@umich.edu" class="auth_mail" title="E-mail the corresponding author ; Sergio Filippib ; sergio.filippi@ge.com" class="auth_mail" title="E-mail the corresponding author
- 关键词：N-PRIME ; Mistuning ; Reduced-order modeling ; Statistical analysis
- 刊名：Mechanical Systems and Signal Processing
- 出版年：2017
- 出版时间：15 March 2017
- 年：2017
- 卷：87
- 期：part_PA
- 页码：161-179
- 全文大小：2056 K
文摘
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A new ROM for blisks with small and large mistuning is proposed.
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A new method of stress modes is developed to recover fast surface stress distributions.
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Validations against full-order systems show good accuracy in predicting dynamic responses.
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ROMS are created for stochastic mistuning patterns for statistical analyses.
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Effects of random mistuning on amplifying forced responses are investigated.