高速・高精度の応力推定法に基づく動解析モデルを用いた台車枠疲労予測システムの開発

カテゴリ: 論文誌(論文単位)

グループ名: 【D】産業応用部門

発行日: 2024/03/01

タイトル(英語): Development of Fatigue Prediction System for Bogie Frame Using a Dynamic Analysis Model Based on High-Speed and High-Precision Stress Estimation Method

著者名: 山崎　陽介（日本製鉄（株）技術開発本部），藤本　隆裕（日本製鉄（株）交通産機品事業部），下川　嘉之（日本製鉄（株）関西製鉄所），南　秀樹（日本製鉄（株）関西製鉄所），近藤　修（日鉄テクノロジー（株）），五百旗頭　学（日鉄テクノロジー（株）），中川　淳一（東京大学 大学院数理科学研究科・理学部数学科）

著者名(英語): Yosuke Yamazaki (Research & Development, Nippon Steel Corporation), Takahiro Fujimoto (Railway, Automotive & Machinery Parts Unit, Nippon Steel Corporation), Yoshiyuki Shimokawa (Kansai Works, Nippon Steel Corporation), Hideki Minami (Kansai Works, Nippon Steel Corporation), Osamu Kondo (Nippon Steel Technology Corporation), Gaku Iokibe (Nippon Steel Technology Corporation), Junichi Nakagawa (Graduate School of Mathematical Sciences, The University of Tokyo)

キーワード: 台車枠，応力頻度解析，疲労損傷度，有限要素法，S-N曲線，モード解析　　bogie frame，stress frequency analysis，fatigue damage，finite element method，S-N curve，modal analysis

要約(英語): 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 fatigue damage degree 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.

本誌: 電気学会論文誌D（産業応用部門誌） Vol.144 No.3 （2024） 特集：J-RAIL 2022

本誌掲載ページ: 94-101 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejias/144/3/144_94/_article/-char/ja/