噪声与振动控制2016，Vol.36Issue(6)：12-15,20,5.DOI:10.3969/j.issn.1006-1335.2016.06.003
混合传递路径分析方法
The Method for Mixed Transfer Path Analysis
摘要
Abstract
The finite element model of the structure of a cantilever-shell test bench is established and modified through the modal test to obtain a high-precision model. The structural damping parameters are calculated using the results of the modal test. Then, the method of acquiring frequency response functions (FRF) based on the finite element model is established, and the effectiveness and the feasibility of this method are verified by the modal test. By means of load identification using Tikhonov regularization method, the transfer path analysis (TPA) of the cantilever-shell is finished by the mixed transfer path analysis method, and the contribution of each transfer path to the vibration of the target points is obtained for different frequencies. Then the contributions of all transfer path are superimposed, and the result is compared with the measured signals. The results show that the superimposed results are in good agreement with the measured signals and the principal transfer paths of vibration of the structure can be determined with this method. This study has provided the basis for the structural optimization.关键词
振动与波/混合传递路径分析/频率响应函数/有限元分析/Tikhonov正则化方法Key words
vibration and wave/mixed TPA/FRF/finite element analysis/Tikhonov regularization method分类
数理科学引用本文复制引用
杨立娟,罗新杰,苗慧慧,陈雪峰..混合传递路径分析方法[J].噪声与振动控制,2016,36(6):12-15,20,5.基金项目
国家杰出青年科学基金资助项目 （）
