Development of fatigue prediction system for bogie frame using a dynamic analysis model based on high-speed and high-precision stress estimation method

IF 0.4 4区工程技术 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC

Electrical Engineering in Japan Pub Date : 2024-06-29 DOI:10.1002/eej.23469

Yosuke Yamazaki, Takahiro Fujimoto, Yoshiyuki Shimokawa, Hideki Minami, Osamu Kondo, Gaku Iokibe, Junichi Nakagawa

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引用次数: 0

Abstract

Despite ensuring the integrity of bogie frames for railway vehicles via nondestructive inspections during periodic maintenance, the possibility of fatigue cracks occurring at locations other than the predetermined inspection points cannot be dismissed. Therefore, fatigue cracks can be prevented more efficiently by assessing the overall degree of fatigue damage to the entire bogie frame and determining the results via nondestructive inspections. In this study, dynamic stresses in the bogie frame during running were estimated via finite element dynamic analysis by using the axle box acceleration as input, and the degree of fatigue damage and life were calculated from the waveform of the estimated stresses. Furthermore, we developed a bogie frame fatigue prediction system based on a high-speed and high-precision stress calculation method. The developed system visualized the overall relative life.

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利用基于高速和高精度应力估算方法的动态分析模型开发转向架框架疲劳预测系统

尽管在定期维护期间通过无损检查确保了轨道车辆转向架框架的完整性，但仍不能排除在预定检查点以外的位置出现疲劳裂纹的可能性。因此，通过无损检测评估整个转向架框架的整体疲劳损伤程度并确定结果，可以更有效地防止疲劳裂纹的产生。在这项研究中，我们以轴箱加速度为输入，通过有限元动态分析估算了转向架构架在运行过程中的动态应力，并根据估算应力的波形计算了疲劳损伤程度和寿命。此外，我们还基于高速、高精度应力计算方法开发了转向架构架疲劳预测系统。所开发的系统将整体相对寿命可视化。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Electrical Engineering in Japan 工程技术-工程：电子与电气

CiteScore

0.80

自引率

0.00%

发文量

审稿时长

4-8 weeks

期刊介绍： Electrical Engineering in Japan (EEJ) is an official journal of the Institute of Electrical Engineers of Japan (IEEJ). This authoritative journal is a translation of the Transactions of the Institute of Electrical Engineers of Japan. It publishes 16 issues a year on original research findings in Electrical Engineering with special focus on the science, technology and applications of electric power, such as power generation, transmission and conversion, electric railways (including magnetic levitation devices), motors, switching, power economics.