Theoretical Modelling and Effectiveness Study of Slotted Stand-Off Layer Damping Treatment for Rail Vibration and Noise Control

Zhao, Caiyou; Wang, Ping

doi:10.1155/2015/716382

Cited by 7 publications

(10 citation statements)

References 16 publications

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“…The expressions of shear forces for transition layer and damping layer have been given in Eqs. (15) and (16). Applying the Fourier expansions in circumferential direction to Eqs.…”

Section: Equilibrium Equation In the Radial Direction For Transition mentioning

confidence: 99%

“…Applying the Fourier expansions in circumferential direction to Eqs. (15) and (16) and introducing dimensionless variables, ̃ ( ) , ̃ ( ) , ̃ ( ) and ̃ ( ) (see Fig. 5) can be written as: Considering the interactions between layers and the external excitation mentioned above, the forces ( ) , ( ) , ( ) , ( ) , ( ) and ( ) can be obtained as follows: -directions, respectively.…”

Section: Equilibrium Equation In the Radial Direction For Transition mentioning

confidence: 99%

“…Sanjiv Kumar et al [14] gave the kinematics equations of constrained damping structure with an active transition layer by adopting Hamilton principle and FEM. Cai-you Zhao et al [15] applied the transition layer to damp the train tracks. They modeled the constrained damping structure with a slot transition layer and carried out related test.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

The semi-analytical method for damping of tubular transition layer damping structure

Zhang¹,

Sun²,

Yan³

et al. 2018

J. vibroeng.

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To solve the limited vibration consumption of the traditional tubular damping structure (TTDS), the tubular transition layer damping structure (TTLDS) is proposed; Based on viscoelastic materials and theories of thin cylindrical shells, the governing equation, the first order matrix differential equation describing vibration of TTLDS under harmonic excitation, is derived by considering the interaction between all layers and the dissipation caused by the shear deformation for transition layer and damping layer. By using the extended homogeneous capacity precision integration method to solve the control equation, a semi-analytical method for studying the vibration and damping characteristics of TTLDS is given. By way of comparison, the correctness of the method provided in paper is verified. At last, the influence of thickness, material and location of transition layer on damping effect is analyzed. The results show that the change for the thickness or material of the transition layer can make the structural damping effect change greatly, while the change for location of the transition layer plays only a few roles on the structural damping effect.

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“…The expressions of shear forces for transition layer and damping layer have been given in Eqs. (15) and (16). Applying the Fourier expansions in circumferential direction to Eqs.…”

Section: Equilibrium Equation In the Radial Direction For Transition mentioning

confidence: 99%

Section: Equilibrium Equation In the Radial Direction For Transition mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

The semi-analytical method for damping of tubular transition layer damping structure

Zhang¹,

Sun²,

Yan³

et al. 2018

J. vibroeng.

View full text Add to dashboard Cite

show abstract

“…Finally, an appropriate confirmatory experiment should be conducted to verify the theoretical results. In this study, the mechanical properties of a track with a Cologne-egg fastening system, which is used in the Chongqing subway, are analysed, and a novel slotted stand-off layer damper, which has been proven to be an effective measure to control rail vibration and noise [20], as shown in Figure 2, is employed, with the goal of minimizing rail vibrations responsible for short-pitch rail corrugation.…”

Section: Introductionmentioning

confidence: 99%

“…The material used for the constraining layer was steel-3Cr13Mo, with an elastic modulus of = 206 GPa. VER-IPN was chosen as the material for the damping layer, and its loss-factor and elastic modulus in the temperature and frequency ranges of interest are given in [20].…”

Section: Introduction Of a Novel Slotted Stand-off Layer Dampermentioning

confidence: 99%

Theoretical Simulation and Experimental Investigation of a Rail Damper to Minimize Short‐Pitch Rail Corrugation

Zhao

Wang

Sheng

et al. 2017

Mathematical Problems in Engineering

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The Cologne-egg fastening systems applied in metro lines, which can be subjected to rail corrugation, are considered in this paper. To understand the mechanism of the formation and development of rail corrugation, dynamic models of the wheel and the track with Cologne-egg fastening system in the frequency domain are developed to analyse the wheel and track vibration behaviour. A field test is also analysed to verify the validity of the mechanism. Using these experimental and theoretical results, the vibration mode of the rail that is responsible for rail corrugation is determined. Based on the results, a novel rail damper that can suppress the track pinned-pinned resonance and smooth the track receptance is presented to minimize short-pitch rail corrugation. It is ultimately found from theoretical simulation and experimental investigation that the application of the rail damper is a long-term and effective method of controlling short-pitch rail corrugation in metro lines.

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Vibration-damping characteristic analysis of constrained stand-off layer damping cylindrical shell using Rayleigh-Ritz method

Yan

Liang

et al. 2019

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Purpose In the vibration reduction field, constrained stand-off layer damping cylindrical shell plays an important role. However, due to the lack of accurate analysis of its damping characteristics, this hinders its further research and application. Therefore, the purpose of this paper is concerned with an accurate solution for the vibration-damping characteristics of a constrained stand-off-layer damping cylindrical shell (CSDCS) under various classical boundary conditions and conducts a further analysis. Design/methodology/approach Based on the Rayleigh–Ritz method and the Hamilton principle, a dynamic model of CSDCS is established. Then the loss factor and the frequency of CSDCS are obtained. The correctness and convergence behavior of the present model are verified by comparing the calculation results with the literature. By using for various classical boundary conditions without any special modifications in the solution procedure, the characteristics of CSDCS with S-S, C-C, C-S, C-F and S-F boundaries are discussed. Findings The Rayleigh–Ritz method is effective in handling the problem of CSDCS with different boundaries and an accurate solution is obtained. The boundary conditions have an important influence on the vibration and damping behavior of the CSDCS. Originality/value Based on the Rayleigh–Ritz method and Hamilton principle, a dynamic model of CSDCS is established for the first time, and then the loss factor and frequency of CSDCS are obtained. In addition, the effectiveness of adding the stand-off layer between the base shell and the viscoelastic layer is confirmed by discussing the characteristics of CSDCS with S-S, C-C, C-S, C-F and S-F boundaries.

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Theoretical Modelling and Effectiveness Study of Slotted Stand-Off Layer Damping Treatment for Rail Vibration and Noise Control

Cited by 7 publications

References 16 publications

The semi-analytical method for damping of tubular transition layer damping structure

The semi-analytical method for damping of tubular transition layer damping structure

Theoretical Simulation and Experimental Investigation of a Rail Damper to Minimize Short‐Pitch Rail Corrugation

Vibration-damping characteristic analysis of constrained stand-off layer damping cylindrical shell using Rayleigh-Ritz method

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