Vibrational energy flow analysis of coupled cylindrical shell-plate structure with general boundary and coupling conditions

Chen, Y-H.; Jin, GY; Zg, Liu

doi:10.1177/0954406214546879

Cited by 9 publications

(3 citation statements)

References 28 publications

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“…TACR energy propagates from the tire cavity to the wheel, ultimately reaching the car cabin. As for the investigation of the energy propagation in a structure, the structural power flow method is very helpful [17][18][19] and can be used to describe the vibration energy distribution. Bolognani et al [20] studied the power flow of a coupled cylindrical shell-plate structure with four types of coupling springs.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Tire Acoustic Cavity Resonance Energy Transmission Characteristics in Wheels Based on Power Flow Method

Zhao

Liu

et al. 2021

Applied Sciences

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As a kind of low-frequency vehicle interior noise, tire acoustic cavity resonance noise plays an important role, since the other noise (e.g., engine noise, wind noise and friction noise) has been largely suppressed. For the suspension system, wheels stand first in the propagation path of this energy. Therefore, it is of great significance to study the influence of wheel design on the transmission characteristics of this vibration energy. However, currently the related research has not received enough attention. In this paper, two sizes of aluminum alloy wheel finite element models are constructed, and their modal characteristics are analyzed and verified by experimental tests simultaneously. A mathematically fitting sound pressure load model arising from the tire acoustic cavity resonance acting on the rim is first put forward. Then, the power flow method is applied to investigate the resonance energy distribution and transmission characteristics in the wheels. The structure intensity distribution and energy transmission efficiency can be described and analyzed clearly. Furthermore, the effects of material structure damping and the wheel spoke number on the energy transmission are also discussed.

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Section: Introductionmentioning

confidence: 99%

Analysis of Tire Acoustic Cavity Resonance Energy Transmission Characteristics in Wheels Based on Power Flow Method

Zhao

Liu

et al. 2021

Applied Sciences

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“…And many scholars have utilized this method to study the vibration energy transmission phenomena of various vibrating structures. [25][26][27][28] Therefore, it is considered, from a more essential point of view, whether the vibration of the structure can be attenuated by introducing a SRE to offset the VEF transmitted in the structure, which takes all of degrees of freedoms of the forces and velocities into consideration in this approach named vibrational energy flow cancelling (VEFC).…”

Section: Introductionmentioning

confidence: 99%

Vibrational energy flow cancelling by loading a reverse excitation: Visualization and analysis

Zhao

et al. 2021

Journal of Low Frequency Noise, Vibration and Active Control

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Vibration control is a permanent and significant issue in all forms of structural dynamic analysis with the consistent objective being to minimize vibration levels. Considering that the propagation of vibration waves is essentially the transmission of vibrational energy flow (VEF), the fundamental requirement, therefore, is to minimize the VEF transmitted from sources to sinks and then to control and block the flow of vibration energy. Structural intensity (SI) method, combining forces with velocities to assess the magnitude and directions of VEF, is alternative to classical dynamic assessment methods offering insight into the transmission of VEF and studying additional phenomena which cannot be obtained by conventional dynamic analysis. In the field of noise, active noise control has been widely used in vehicles and headphones, which has achieved remarkable results by introducing a cancelling ‘anti-noise’ wave through an appropriate array of secondary sources. Analogically, it is considered whether the vibration of the structure can be attenuated by introducing a secondary reverse excitation (SRE) to offset the VEF transmitted in the structure. Therefore, this article combines the SI method and SRE to carry out related research on this issue. The rectangular plate with the circular hole subjected to the transient sinusoidal force, being widely used and found in various engineering branches, is taken as the research object. The developed simulation system consisting of the finite element tool and the in-house program is used to assess and visualize the instantaneous SI fields. The effects of the SRE acting on this structure on the transmission behaviours of VEF and the vibration suppression have been investigated in detail. Moreover, the transmission, conversion and balance relationships of the VEF have been derived from the general equation of motion and analysed as well. This study sheds new light on the vibration attenuation by introducing the secondary source from the perspective of VEF.

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“…Substantial investigations on cylindrical shell and annular plate have been conducted. [1][2][3][4][5][6][7][8][9][10][11][12][13][14] Then, some researches have been published on the coupling structure derived from shell and annular plate, [15][16][17][18][19][20][21][22][23][24] and most of them are about shell-shell or cylindrical shell-rectangular combinations. Based on the above study, there have been researches on vibration of the cylindrical shell coupled with annular plate.…”

Section: Introductionmentioning

confidence: 99%

Investigation on vibration of the functionally graded material–stepped cylindrical shell coupled with annular plate in thermal environment

Chen

Wang

Qin

et al. 2021

Journal of Low Frequency Noise, Vibration and Active Control

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This article is concerned with thermal vibration behaviors of the functionally graded material–stepped cylindrical shell coupled with annular plate, including free vibration, transient response, and steady state response. The stepped cylindrical shell is divided into N s segments at locations of thickness and radius variations, which is coupled with N p annular plates. The boundary and coupling conditions are achieved by introducing the artificial virtual spring technology. Under the framework of FSDT, the displacement function of arbitrary shell segment and annular plate is expanded with Chebyshev polynomials and Fourier series for circumferential direction. Compared with results obtained by the finite element method and the references, a series of numerical examples and validations are presented to verify the convergence and accuracy of the current method. The effects of the relevant parameters containing the geometric parameters, boundary conditions, various loadings, and the thermal environment are investigated in detail.

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Vibrational energy flow analysis of coupled cylindrical shell-plate structure with general boundary and coupling conditions

Cited by 9 publications

References 28 publications

Analysis of Tire Acoustic Cavity Resonance Energy Transmission Characteristics in Wheels Based on Power Flow Method

Analysis of Tire Acoustic Cavity Resonance Energy Transmission Characteristics in Wheels Based on Power Flow Method

Vibrational energy flow cancelling by loading a reverse excitation: Visualization and analysis

Investigation on vibration of the functionally graded material–stepped cylindrical shell coupled with annular plate in thermal environment

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