Experimental investigation of effect of wheel out-of-roundness on fracture of coil springs in metro vehicles

Zhang, Heji; Yang, Xiaoxuan; Xie, Chenxi; Tao, Gongquan; Wang, Hengyu; Wen, Zefeng

doi:10.1016/j.engfailanal.2022.106811

Cited by 14 publications

(1 citation statement)

References 26 publications

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“…Firstly, as a mechanical component, springs exert a significant influence on the vibrational response due to their dynamic characteristics. Cheng Zhou et al conducted finite element modeling and modal analysis of flexible coil springs in vehicles, analyzing the dynamic response of springs under vibration conditions [7][8][9][10] . They identified the frequency range where vibration is concentrated under different constraint conditions.…”

Section: Introductionmentioning

confidence: 99%

Research on the failure and fracture factors of spring in high voltage circuit breakers

Xu,

Cheng,

Weng

et al. 2024

Fourth International Conference on Mechanical Engineering, Intelligent Manufacturing, and Automation Technology (MEMAT 2023)

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The failure of the operating spring stress in high-voltage circuit breakers, along with fatigue fracture, can result in inadequate opening and closing speeds, exceeding the specified opening and closing times, and the inability to close, seriously affecting the safe and stable operation of equipment and the power grid. In the actual production and maintenance processes, neglecting the operating conditions of the high-voltage circuit breaker spring, such as temperature, loading position, preload, motor vibration, and other factors, leads to poor estimation accuracy of the spring's fatigue state and remaining life. Additionally, the inability to accurately judge the creep and relaxation characteristics of the spring during use results in phenomena such as spring creep deformation and relaxation, leading to problems of missing maintenance opportunities. This paper focuses on studying the influence of external operating conditions, as well as creep and relaxation characteristics, on the properties of the spring. It aims to provide relevant support for the design and operation of springs in subsequent applications.

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Section: Introductionmentioning

confidence: 99%