A diagnostic method of freight wagons hunting performance based on wayside hunting detection system

Wang, Qunsheng; Li, Dadi; Zeng, Jing; Peng, Xinyu; Wei, Lai; Du, Wanliang

doi:10.1016/j.measurement.2024.114274

Measurement

2024

DOI: 10.1016/j.measurement.2024.114274

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A diagnostic method of freight wagons hunting performance based on wayside hunting detection system

Qunsheng Wang,

Dadi Li,

Jing Zeng

et al.

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2024

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Cited by 5 publications

References 44 publications

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An Alternate Search Method and An Extended Trace Line Method for Wheel‐Rail Contact Patch Centers Detection

Yongxu,

Liu,

Cai

et al. 2024

Advcd Theory and Sims

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Wheel‐rail contact is a link between the vehicle system and the rail system, and the contact processing approach affects accuracy of vehicle dynamic simulation. Contact detection is usually the start of wheel‐rail contact calculation, and detecting precision of contact patch center affect accuracy of contact force calculating results, therefore it is significant to improve detecting precision of contact patch center. An alternate search method (ASM) and an extended trace line method are proposed to improve precision and efficiency of contact patch centers detection. The proposed alternate search method applies Golden Ratio Search Method and variable intervals between grids to detect contact patch centers. To make the detected contact patch centers match rail tangential directions better, an extended trace line method is constructed based on geometrical constraints between contact points and rail tangential directions. Dynamic simulations of a bogie vehicle formed by two wheelsets and a bogie frame negotiating a rail curve are conducted to evaluate effects of the proposed methods. Calculating times of the proposed methods for finishing the simulations are compared to explain computational efficiencies of the different methods. The proposed approaches are real‐time capable and can be used for vehicle dynamics simulations.

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An Alternate Search Method and An Extended Trace Line Method for Wheel‐Rail Contact Patch Centers Detection

Yongxu,

Liu,

Cai

et al. 2024

Advcd Theory and Sims

View full text Add to dashboard Cite

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A deep learning fault diagnosis method for metro on-board detection on rail corrugation

Wang,

Chen,

Zeng

et al. 2024

Engineering Failure Analysis

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Dynamic Analysis of the Guiding Shoe considering Contact Gap and Pose Disturbance

Wan,

Wang,

et al. 2024

Shock and Vibration

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The pose disturbance of the guide shoe under complex working conditions can lead to collision, impact, and wear failure between the guide shoe and the pin row. To explore the damage law of pose disturbance on the guiding shoe, a rigid‐flexible coupling dynamic model of the walking mechanism considering the contact gap between the guiding shoe and the pin row was constructed. The contact characteristics of the guiding shoe under different poses were analyzed. The results indicate that the swing around the x‐axis has the most significant impact on the guiding shoe, with stress concentration primarily occurring near the corner of the trench. The posture of swinging solely around the y‐axis weakens the supporting effect of the guide shoe, resulting in stress concentration on the end face of the left side face. Swinging around the z‐axis results in stress concentrations on the upper faces of the shoe. Research shows that the angular velocity of the guiding shoe around the x‐axis and z‐axis is highly sensitive to variations in traction speed. In addition, an increase in lateral force weakens the support effect of the guiding shoe, resulting in elevated contact force on the lower side of the guiding shoe and increased y‐direction load on the walking wheel. The research results provide a reference for exploring the influence of walking unit postures on the failure of the guiding shoe and for improving shearer traction reliability.

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A diagnostic method of freight wagons hunting performance based on wayside hunting detection system

Cited by 5 publications

References 44 publications

An Alternate Search Method and An Extended Trace Line Method for Wheel‐Rail Contact Patch Centers Detection

An Alternate Search Method and An Extended Trace Line Method for Wheel‐Rail Contact Patch Centers Detection

A deep learning fault diagnosis method for metro on-board detection on rail corrugation

Dynamic Analysis of the Guiding Shoe considering Contact Gap and Pose Disturbance

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