Yoshiaki Okamura, Daisuke Suzuki, S. Fukagai, Ken Takahashi, Takafumi Nagatomo
{"title":"Proposal of Backing Ring for Reducing Fretting Wear of Axle Journal Bearings","authors":"Yoshiaki Okamura, Daisuke Suzuki, S. Fukagai, Ken Takahashi, Takafumi Nagatomo","doi":"10.2219/rtriqr.64.3_186","DOIUrl":"https://doi.org/10.2219/rtriqr.64.3_186","url":null,"abstract":"","PeriodicalId":52445,"journal":{"name":"Quarterly Report of RTRI (Railway Technical Research Institute) (Japan)","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44033703","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Axle bearings of railway car bogies are important parts that support the running of the cars. It is desirable to detect damage to axle bearings at an early state. Therefore, an autonomous damage detection system (ADDS) was de (cid:89) eloped that does not re (cid:84) uire a power supply nor wiring and noti (cid:191) es axle bearing damage to the (cid:89) ehicle after detecting. The ADDS utilized an anti-vibration rubber with a built-in piezoelectric element and wireless transmitter; which was installed on the axle box. The damage detection performance of the ADDS was evaluated using a test machine. In the case of a damaged bearing, the power generated by the piezoelectric element built-in the rubber could drive the radio transmitter, and the damage could be noti (cid:191) ed.
{"title":"Autonomous Damage Detection System for Damaged Axle Bearings of Railway Car Bogies","authors":"Shogo Mamada, Tatsuya Ohta, Yoshiaki Okamura","doi":"10.2219/rtriqr.64.3_193","DOIUrl":"https://doi.org/10.2219/rtriqr.64.3_193","url":null,"abstract":"Axle bearings of railway car bogies are important parts that support the running of the cars. It is desirable to detect damage to axle bearings at an early state. Therefore, an autonomous damage detection system (ADDS) was de (cid:89) eloped that does not re (cid:84) uire a power supply nor wiring and noti (cid:191) es axle bearing damage to the (cid:89) ehicle after detecting. The ADDS utilized an anti-vibration rubber with a built-in piezoelectric element and wireless transmitter; which was installed on the axle box. The damage detection performance of the ADDS was evaluated using a test machine. In the case of a damaged bearing, the power generated by the piezoelectric element built-in the rubber could drive the radio transmitter, and the damage could be noti (cid:191) ed.","PeriodicalId":52445,"journal":{"name":"Quarterly Report of RTRI (Railway Technical Research Institute) (Japan)","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48393684","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Proposal for Energy-saving Driving Method for Freight Trains Combining Constant-speed Operation and Coasting Operation","authors":"T. Ogawa","doi":"10.2219/rtriqr.64.3_173","DOIUrl":"https://doi.org/10.2219/rtriqr.64.3_173","url":null,"abstract":"","PeriodicalId":52445,"journal":{"name":"Quarterly Report of RTRI (Railway Technical Research Institute) (Japan)","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47339545","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Method for Evaluating Performance of Wheel Slide Protection Algorithm Using a Hybrid Simulator","authors":"Daisuke Hijikata, Y. Kizaki, S. Nakazawa","doi":"10.2219/rtriqr.64.3_180","DOIUrl":"https://doi.org/10.2219/rtriqr.64.3_180","url":null,"abstract":"","PeriodicalId":52445,"journal":{"name":"Quarterly Report of RTRI (Railway Technical Research Institute) (Japan)","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43977208","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"R&D Activities and Future Perspectives in Material Technology","authors":"M. Matsui","doi":"10.2219/rtriqr.64.3_157","DOIUrl":"https://doi.org/10.2219/rtriqr.64.3_157","url":null,"abstract":"","PeriodicalId":52445,"journal":{"name":"Quarterly Report of RTRI (Railway Technical Research Institute) (Japan)","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45042881","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Trend on Research and Development Relating to Information and Communication Technology in Railway Fields","authors":"M. Fukuda","doi":"10.2219/rtriqr.64.3_161","DOIUrl":"https://doi.org/10.2219/rtriqr.64.3_161","url":null,"abstract":"","PeriodicalId":52445,"journal":{"name":"Quarterly Report of RTRI (Railway Technical Research Institute) (Japan)","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49047828","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Influence of a Decarburized Layer on the Formation of Microcracks in Railway Rails: On-site Investigation","authors":"Y. Kanematsu, Naotaka Uehigashi, M. Matsui","doi":"10.2219/rtriqr.64.3_199","DOIUrl":"https://doi.org/10.2219/rtriqr.64.3_199","url":null,"abstract":"","PeriodicalId":52445,"journal":{"name":"Quarterly Report of RTRI (Railway Technical Research Institute) (Japan)","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48070302","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Daiki Okuda, Takuya Watanabe, S. Nakagawa, Takamasa Suzuki, N. Fukasawa
{"title":"Evaluation Method for Implementation Effects of Disaster Countermeasures for Freight Railway Networks","authors":"Daiki Okuda, Takuya Watanabe, S. Nakagawa, Takamasa Suzuki, N. Fukasawa","doi":"10.2219/rtriqr.64.3_211","DOIUrl":"https://doi.org/10.2219/rtriqr.64.3_211","url":null,"abstract":"","PeriodicalId":52445,"journal":{"name":"Quarterly Report of RTRI (Railway Technical Research Institute) (Japan)","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46794347","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
N. Nagamine, Wataru Goda, Riho Maeda, Y. Tsubokawa, So Kato, Kensuke Itoi
{"title":"Inspection Method of Track Facilities Using Image Analysis of Images Taken from Front of Trains","authors":"N. Nagamine, Wataru Goda, Riho Maeda, Y. Tsubokawa, So Kato, Kensuke Itoi","doi":"10.2219/rtriqr.64.3_205","DOIUrl":"https://doi.org/10.2219/rtriqr.64.3_205","url":null,"abstract":"","PeriodicalId":52445,"journal":{"name":"Quarterly Report of RTRI (Railway Technical Research Institute) (Japan)","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47663989","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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