基于替代模型的岸桥随机有限元模型修正

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Abstract The updating of a quayside container crane (QCC) finite element model considering stochastic uncertainty of parameters was studied. Firstly, assuming that parameters to be updated and modal parameters of a QCC obey normal distribution, an updating problem of a model with uncertainty was converted into updating problems of mean and standard deviation. Then, a certain QCC was taken as the study object, its wind induced vibration responses were measured, and its first four orders measured modal parameters were obtained using the stochastic subspace method. Finally, the finite element model of this QCC was established, and the model was updated based on Kriging meta-model and multi-objective genetic algorithm. The results showed that the proposed stochastic finite element model updating method considering parametric uncertainty can be used to effectively update parameters’ mean and standard deviation of a QCC structure.

Key words： quayside container crane (QCC) model updating uncertainty Kriging meta-model

Received: 28 June 2018 Published: 28 December 2019

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	Articles by authors
	QIN Xianrong
	ZHAN Pengming
	ZHAO Shuzhen
	PAN Jie
	SUN Yuantao
	ZHANG Qing

Cite this article:

QIN Xianrong,ZHAN Pengming,ZHAO Shuzhen, et al. Updating of stochastic finite element model of a quayside container crane based on meta-model[J]. JOURNAL OF VIBRATION AND SHOCK, 2020, 39(1): 43-48.

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http://jvs.sjtu.edu.cn/EN/ OR http://jvs.sjtu.edu.cn/EN/Y2020/V39/I1/43

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