Research on determining the ultrasonic inspection interval of railway hollow axles based on service dynamic stress and accurate probability of detection on cracks

被引：0
作者：
Su, Ning [1 ]
Wang, Wenjing [1 ]
Zeng, Yiming [1 ]
Chen, Liang [2 ]
Zheng, Jing [3 ]
Huo, Fengfeng [4 ]
Wang, Binjie [1 ]
机构：
[1] Beijing Jiaotong Univ, Sch Mech Elect & Control Engn, Beijing 100044, Peoples R China
[2] CRRC Changchun Railway Vehicles Co Ltd, Changchun 130062, Peoples R China
[3] CRRC Qingdao Sifang Locomot Vehicle Co Ltd, Qingdao 266111, Peoples R China
[4] ZhiQi Railway Equipment Co Ltd, Taiyuan 030032, Peoples R China
来源：
ENGINEERING FAILURE ANALYSIS | 2025年 / 170卷
基金：
中国国家自然科学基金;
关键词：
Railway hollow axle; Dynamic stress testing; Fatigue crack propagation; Probability of detection; Ultrasonic inspection interval; FATIGUE LIFETIME ESTIMATION; DAMAGE; GROWTH;
D O I：
10.1016/j.engfailanal.2024.109255
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The implementation of recurrent ultrasonic inspections serves to guarantee the safety and quality of hollow axles in high-speed trains. Nevertheless, there is an urgent requirement to optimize the existing empirical-based inspection intervals. This paper, based on the principle of damage tolerance, puts forward a comprehensive and scientifically rigorous approach to determine the optimal ultrasonic inspection interval for railway hollow axles. In this study, a remaining life analysis model for axles with cracks was developed with the integration of the factors of crack propagation properties of the axle material, service stress spectrum in critical sections of axles, and the press fit effect of wheel and axle assembly. By integrating the remaining life of the axle with the probability of detection (POD) curves obtained from experimental ultrasonic testing equipment, a comprehensive methodology for determining the optimal ultrasonic inspection interval for railway hollow axles was established. This research provides support for optimizing the ultrasonic inspection intervals of high-speed train axles.
引用
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页数：15
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