Research on transmission paths of a coupled beam-cylindrical shell system by power flow analysis

Gao, Feng; Zhang, Zhi‐Yong; Chen, Y.; Hu, Hua

doi:10.1007/s12206-009-0502-5

Cited by 11 publications

(6 citation statements)

References 22 publications

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“…In addition to the quantification of power flows within plate structures discussed above, we have further concern regarding the vibration transmission path due to its importance in the dynamics of built-up structures (Heckl and Lewit, 1994; Thite and Thompson, 2003; Feng et al., 2009). Feng et al. (2009) quantified the power flows through three transmission paths within a beam–cylindrical shell structure and, accordingly, they determined the major transmission path.…”

Section: Numerical Results and Discussionmentioning

confidence: 99%

Power flow analysis of built-up plate structures using the dynamic stiffness method

Yin

et al. 2017

Journal of Vibration and Control

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The dynamic stiffness method (DSM) in our recent paper, which can consider both in-plane and out-of-plane vibrations simultaneously, is formulated to investigate the power flow characteristics of built-up plate structures. Prior to power flow analysis, comprehensive validation works on our DSM are performed so as to better exhibit its numerical capabilities. Power input and power transmission within a two-plate structure are then analyzed by following the context of in-plane and out-of-plane vibrations. In addition, three vibration transmission paths within a multiple plate structure are characterized in terms of power flow densities, which can provide better physical insights in vibration transmission within complex plate structures. Compared to power flow analysis based on the well-known reception/mobility method, our approach is strongly recommended for the dynamics of built-up structures since it can assemble the overall stiffness matrix in a straightforward manner like that in the conventional finite element technique.

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Section: Numerical Results and Discussionmentioning

confidence: 99%

Power flow analysis of built-up plate structures using the dynamic stiffness method

Yin

et al. 2017

Journal of Vibration and Control

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“…The path involvement loss curve of test point 1 is shown in Figure 16. IL ave1 =16.73 and IL ave2 =20.13 are calculated from equation (9).…”

Section: Comparison and Analysis Of Dynamic Model Calculation And Tes...mentioning

confidence: 99%

Contribution analysis of vibration transmission path of planetary reducer box based on velocity involvement loss

Liu

Zhu

et al. 2022

Journal of Low Frequency Noise, Vibration and Active Control

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Planetary reducer box undertakes the vibration transmitted from gear transmission system to bearing, and further transmits the vibration to the base. Research on the transmission path contribution of reducer box has an important guiding role in reducing vibration. This paper first analyzed the contribution of each vibration path of the gearbox based on the velocity intervention loss, so as to identify the main transmission path of the gearbox vibration; then the vibration test of the gearbox is carried out to verify the correctness of the transmission path model. The results show that the vibration transmission path of the right bearing of the gearbox is the main transmission path, and the established vibration transmission path dynamics model of the gearbox can well reveal the contribution law of the vibration transmission path of the gearbox.

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“…The waveguide method [10] is adopted to establish the shaft model (as shown in Fig. 1), and each shaft section is described by wave solution , :…”

Section: Letmentioning

confidence: 99%

Estimation of longitudinal excitation of propeller using a novel hybrid method

Wu¹,

Chai²

2021

J. vibroeng.

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Due to the limitation of working environment and structure conditions, it is difficult to directly measure the propeller excitation of ship propulsion shafting system. A method based on waveguide function and modal method combining with shafting vibration response measurement was proposed to estimate the propeller longitudinal excitation indirectly. Firstly, a waveguide transfer model for the general structure of the propulsion shafting is proposed that is suitable for estimating propeller excitation from shafting vibration response. Secondly, the longitudinal excitation of the propeller is calculated by measuring the waveguide coefficients of any shaft sections via the proposed hybrid method. Finally, the scheme is verified by a concrete example. The simulation results prove its feasibility and effectiveness for estimating propeller excitation by measuring the shafting vibration response, which provides a novel scheme for accurately grasping the propeller excitation and effectively controlling the vibration and noise of hull structure.

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Research on transmission paths of a coupled beam-cylindrical shell system by power flow analysis

Cited by 11 publications

References 22 publications

Power flow analysis of built-up plate structures using the dynamic stiffness method

Power flow analysis of built-up plate structures using the dynamic stiffness method

Contribution analysis of vibration transmission path of planetary reducer box based on velocity involvement loss

Estimation of longitudinal excitation of propeller using a novel hybrid method

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