Coupling effects of strain rate and fatigue damage on wheel-rail rolling contact behaviour: a dynamic finite element simulation

Zhou, Xiongfei; Wang, Jinneng; Jing, Lin

doi:10.1080/23248378.2022.2083711

Cited by 14 publications

(2 citation statements)

References 38 publications

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“…At present, the research on the analysis and optimization of key structural components of handling manipulators has made some progress [2] . Scholars at home and abroad mainly adopt fatigue simulation and finite element simulation methods to analyze and predict the force and fatigue life of key structural components of manipulators by establishing their mathematical models [3] . Meanwhile, some scholars also improve the performance and life of key structural components by means of optimized design and material selection [4] .…”

Section: Introductionmentioning

confidence: 99%

Analysis and optimization of key structural components of handling manipulator based on fatigue simulation and finite element simulation

2024

Fourth International Conference on Applied Mathematics, Modelling, and Intelligent Computing (CAMMIC 2024)

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This study analyzes and optimizes the key structural components of a handling manipulator based on fatigue simulation and finite element simulation methods. Taking the handling manipulator as the research object, the structural design scheme of the manipulator is optimized based on the morphological matrix method. The key structural components of the handling manipulator are analyzed by fatigue simulation and finite element simulation methods to verify the accuracy of the theoretical derivation. The results show that the computer-controlled flatbed manipulator is the best design scheme, and the fatigue value of the gear transmission method is smaller, the stress value of the clamping claw mechanism is smaller, and the stress distribution is more uniform, with a maximum stress of 47.5 N/mm2.The proposed manipulator can effectively prolong its working life, and lays a theoretical foundation for the optimization of the manipulator's structural design and mechanical properties.

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Section: Introductionmentioning

confidence: 99%

Analysis and optimization of key structural components of handling manipulator based on fatigue simulation and finite element simulation

2024

Fourth International Conference on Applied Mathematics, Modelling, and Intelligent Computing (CAMMIC 2024)

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“…By accounting for more realistic contact condition, the FE method has been demonstrated to be effective and accurate for solving wheel-rail contact problem. As the train speed improves, the strain rate effect of materials cannot be ignored (Jing et al , 2022a(Jing et al , 2022bLiu et al 2018aLiu et al , 2018bSu et al 2020;Zhou et al 2022). Hence, in the present work, the wheel-rail dynamic interaction of curve negotiation was investigated by employing the FE model of a wheelset in contact with double rails, where the strain rate effect of wheel/rail materials, superelevation, the roll angle and initial lateral displacement were fully considered.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Finite Element Simulation of Wheel–rail Contact Response for the Curved Track Case

Zhou

Jing

2022

Transport

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The wheel–rail interaction will be intensified on account of the complexity of the wheel–rail contact geometry on a curved track. It also may become more complicated and/or have significant difference as the train speed increases, since the dynamic effects cannot be ignored then. In this study, based on explicit Finite Element (FE) software LS-DYNA 971, a Three-Dimensional (3D) elastic-plastic FE model was built to simulate the dynamic wheel–rail contact behaviour of curve negotiating, where the superelevation and roll angle as well as the strain rate effect were considered. The evolution of contact patch and pressure, wheel–rail contact force, the stress/strain state and the acceleration of the axle were employed to examine the wheel–rail transient dynamic response. Furthermore, the influences of axle load, curve radius and strain rate effect were also discussed. It is found that the maximum vertical contact force, contact pressure, stress and strain on the curved track increase with the decreasing curve radius, and they increase with the increasing axle load except for lateral contact force. The wheel–rail dynamic responses on the curved track are significantly enhanced compared to the straight track. Moreover, the strain rate effect can enhance von-Mises stress and contact pressure, suppress the plastic deformation of the rail and wheel, but it has little effect on the vertical and lateral contact forces and stable acceleration of axle. The Rate-Sensitive Factors (RSF) of the wheel and rail on the curved track are weaker than those on the straight track. These findings will be very helpful to study the competitive relationship between the rolling contact fatigue and wear, as well as the crack initiation and propagation problem.

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Plastic anisotropy of AA7075-T6 alloy under quasi-static compression: experiments, classical plasticity and artificial neural networks modeling

Lee

Lin

et al. 2023

Appl. Phys. A

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Coupling effects of strain rate and fatigue damage on wheel-rail rolling contact behaviour: a dynamic finite element simulation

Cited by 14 publications

References 38 publications

Analysis and optimization of key structural components of handling manipulator based on fatigue simulation and finite element simulation

Analysis and optimization of key structural components of handling manipulator based on fatigue simulation and finite element simulation

Dynamic Finite Element Simulation of Wheel–rail Contact Response for the Curved Track Case

Plastic anisotropy of AA7075-T6 alloy under quasi-static compression: experiments, classical plasticity and artificial neural networks modeling

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