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所属单位：能源与动力学院

发表刊物：J Sound Vib

摘要：In component transmission path analysis (TPA), the blocked forces of subsystems and the frequency response functions (FRFs) of the total system need to be measured, which are always not easy to implement. In this paper, an advanced component TPA procedure is proposed. The method allows one to predict the vibroacoustic responses of coupled systems according to the dynamical properties of the subsystems. More specifically, it is based on the knowledge of the displacements of blocked subsystems and the transmissibility matrices between subsystems. The physical meanings of blocked displacements and transmissibility matrices are discussed in detail. It is proved that the transmissibility matrices in this method can be measured independently by suppliers of various components, which is important for complicated products’ vibroacoustic response syntheses. Furthermore, an interpretation of this method's physical meaning is given in terms of the Neumann series. The response of a coupled system can be regarded as the result of the superposition of infinite transmissions. This highlights the transmission mechanism of vibration and makes the method more perceivable. The method is illustrated and validated by a numerical model and a finite element (FE) model. © 2018 Elsevier Ltd

ISSN号：0022-460X

是否译文：否

发表时间：2018-01-01

合写作者：廖旭辉,Yang, Shang-Kuo,王金瑞,辛玉

通讯作者：李舜酩