{"title":"Study on wheel polygonal wear of high-speed train caused by the unstable vibration of the disc brake system","authors":"Qi Zhu , Jun Xie , Xiaolu Cui , Jian Li","doi":"10.1016/j.wear.2025.205925","DOIUrl":null,"url":null,"abstract":"<div><div>To study the formation mechanism of wheel polygonal wear on high-speed train and propose corresponding inhibition measures. Based on the theory of frictional self-excited vibration, the finite element models of different types of high-speed train wheel rail systems are established. The frictional self-excited vibration characteristics of the wheel rail system during the braking process are investigated using complex eigenvalue analysis. The vibration modes and vibration responses of the axle-disc and wheel-disc braking devices are obtained using the transient dynamic analysis. The frequency distribution and corresponding mode shapes of the frictional self-excited vibration to clarify the relationship between the frictional self-excited vibration of disc brake subsystem and wheel rail subsystem. The formation mechanism of polygonal wear of high-speed train wheel is revealed. Finally, the parameter sensitivity of the braking unit coordination relationship is analyzed. Results show that during the train braking process, the friction self-excited vibration of the wheel-rail system induced by the coupling effect of the wheel-rail friction and disc brake system friction is the root cause of the wheel polygonal wear. The axle-disc braking device mainly dominates the formation of 20th order wheel polygonal wear. The disc brake device dominates the 447 Hz frictional self-excited vibration of the wheel rail system. Parameter sensitivity analysis results show that under the premise of ensuring the braking performance of the train, wheel polygonal wear can be suppressed by reducing the friction coefficient of the braking device. The greater the number of brake units, the better the stability of the wheel-rail system.</div></div>","PeriodicalId":23970,"journal":{"name":"Wear","volume":"570 ","pages":"Article 205925"},"PeriodicalIF":6.1000,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Wear","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0043164825001942","RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, MECHANICAL","Score":null,"Total":0}
引用次数: 0
Abstract
To study the formation mechanism of wheel polygonal wear on high-speed train and propose corresponding inhibition measures. Based on the theory of frictional self-excited vibration, the finite element models of different types of high-speed train wheel rail systems are established. The frictional self-excited vibration characteristics of the wheel rail system during the braking process are investigated using complex eigenvalue analysis. The vibration modes and vibration responses of the axle-disc and wheel-disc braking devices are obtained using the transient dynamic analysis. The frequency distribution and corresponding mode shapes of the frictional self-excited vibration to clarify the relationship between the frictional self-excited vibration of disc brake subsystem and wheel rail subsystem. The formation mechanism of polygonal wear of high-speed train wheel is revealed. Finally, the parameter sensitivity of the braking unit coordination relationship is analyzed. Results show that during the train braking process, the friction self-excited vibration of the wheel-rail system induced by the coupling effect of the wheel-rail friction and disc brake system friction is the root cause of the wheel polygonal wear. The axle-disc braking device mainly dominates the formation of 20th order wheel polygonal wear. The disc brake device dominates the 447 Hz frictional self-excited vibration of the wheel rail system. Parameter sensitivity analysis results show that under the premise of ensuring the braking performance of the train, wheel polygonal wear can be suppressed by reducing the friction coefficient of the braking device. The greater the number of brake units, the better the stability of the wheel-rail system.
期刊介绍:
Wear journal is dedicated to the advancement of basic and applied knowledge concerning the nature of wear of materials. Broadly, topics of interest range from development of fundamental understanding of the mechanisms of wear to innovative solutions to practical engineering problems. Authors of experimental studies are expected to comment on the repeatability of the data, and whenever possible, conduct multiple measurements under similar testing conditions. Further, Wear embraces the highest standards of professional ethics, and the detection of matching content, either in written or graphical form, from other publications by the current authors or by others, may result in rejection.