噪声与振动控制2017，Vol.37Issue(4)：15-19,51,6.DOI:10.3969/j.issn.1006-1355.2017.04.004
基于载荷识别的辅助变流器柜体振动模型修正
Vibration Model Updating of Auxiliary Converter Cabinets Based on Load Identification
丁杰 1张平 2王永胜 1曾亚平 2臧晓斌2
作者信息
- 1. 湘潭大学 土木工程与力学学院,湖南 湘潭 411105
- 2. 株洲南车时代电气股份有限公司 技术中心,湖南 株洲 412001
- 折叠
摘要
Abstract
In order to improve the accuracy of the results of vibration response simulation for a metro vehicle's auxiliary converter cabinet, a method of vibration model updating combining the load identification with optimization algorithm is proposed. Firstly, the transfer function between excitation and vibration response is calculated by means of the finite element model of the auxiliary converter cabinet, and the excitation spectrum applied at the measurement points of the auxiliary converter cabinet is calculated by using the transfer function and the test data. Then, sequence quadratic programming is adopted to carry out the model updating for the finite element model. The multi-output model updating problem can be transferred into a single-output model updating problem by constructing a proper objective function. Finally, the modified finite element model is analyzed and the vibration response results between numerical simulation and test are compared to verify the correctness of the proposed model updating method. The method can be used to create the necessary conditions for further vibration and noise reduction of the auxiliary converter cabinet.关键词
振动与波/载荷识别/模型修正/传递函数/矩阵求逆/优化算法Key words
vibration and wave/load identification/model updating/transfer function/matrix inverse/optimization algorithm分类
机械制造引用本文复制引用
丁杰,张平,王永胜,曾亚平,臧晓斌..基于载荷识别的辅助变流器柜体振动模型修正[J].噪声与振动控制,2017,37(4):15-19,51,6.
