期刊
JOURNAL OF VIBRATION AND CONTROL
卷 28, 期 23-24, 页码 3780-3793出版社
SAGE PUBLICATIONS LTD
DOI: 10.1177/10775463211037796
关键词
Similitude; vibration characteristic; sensitivity analysis; modal assurance criterion; shock response
资金
- National Natural Science Foundation of China [11872148, U1908217]
- Equipment Pre-research Fund [61407200107]
- Fundamental Research Funds for the Central Universities of China [N2003012, N2003013]
Similitude laws are used to predict the vibration characteristics of composite laminated plates in an effective and convenient way. Sensitivity analysis and modal assurance criterion improve the prediction accuracy of natural frequency and mode shapes, respectively.
Similitude laws can be used to extrapolate the vibration characteristic of a small, inexpensive, and easily tested model into structural behavior for the full-size prototype. In this article, a systematic similitude approach is proposed to predict the natural frequency, mode shape, and vibration response of composite laminated plates. The emphasis of this article is to predict the vibration characteristic of composite laminated plates in an effective and convenient way. Sensitivity analysis (SA) is introduced to improve the prediction accuracy of natural frequency. For distortion similarity, the prediction accuracy is improved close to 5%. Modal assurance criterion (MAC) measures the consistency of mode shapes of the full-size prototype and scaled models. The influence of stacking sequence on mode consistency is investigated. Similitude based on virtual mode and statistical energy (SVMSE) is proposed to extrapolate the transient response of the prototype to simulate the shock environment, such as satellite-rocket separation, etc. In conclusion, the prediction accuracy of natural frequency, mode consistency, and response coincidence are considered comprehensively to extrapolate the vibration characteristic of the full-size laminated plates.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据