Continuous measurement of derailment quotient and wheel-rail contact position in railway vehicle using axially-asymmetric bridge circuits and orthogonal weighting functions
Instrumented wheelsets are widely used in the railway industry for the purpose of measurement of the wheel-rail interaction forces, which are crucial factors in a running safety assessment. Recently, the author proposed a new configuration of bridge circuit for measuring wheel-rail lateral force, wh...
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| Format: | Article |
| Language: | Japanese |
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The Japan Society of Mechanical Engineers
2025-05-01
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| Series: | Nihon Kikai Gakkai ronbunshu |
| Subjects: | |
| Online Access: | https://www.jstage.jst.go.jp/article/transjsme/91/946/91_25-00059/_pdf/-char/en |
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| _version_ | 1849433320654372864 |
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| author | Takatoshi HONDO Takayuki TANAKA |
| author_facet | Takatoshi HONDO Takayuki TANAKA |
| author_sort | Takatoshi HONDO |
| collection | DOAJ |
| description | Instrumented wheelsets are widely used in the railway industry for the purpose of measurement of the wheel-rail interaction forces, which are crucial factors in a running safety assessment. Recently, the author proposed a new configuration of bridge circuit for measuring wheel-rail lateral force, which are categorized as “axially-asymmetric bridge circuit.” The merit of this type of bridge circuit is to reduce the measurement error associated to the lateral contact point shift. In this study, we propose a highly accurate continuous measurement method of the derailment coefficient based on “orthogonal weighting functions” that utilizes the characteristics of an axially-asymmetric bridge circuits. A continuous measurement method for the lateral contact position is also proposed utilizing the concept of the orthogonal weighting functions. The validity of the proposed method was confirmed through roller-rig tests. |
| format | Article |
| id | doaj-art-41aafd1294064581ae89b2f1ca78e6d5 |
| institution | Kabale University |
| issn | 2187-9761 |
| language | Japanese |
| publishDate | 2025-05-01 |
| publisher | The Japan Society of Mechanical Engineers |
| record_format | Article |
| series | Nihon Kikai Gakkai ronbunshu |
| spelling | doaj-art-41aafd1294064581ae89b2f1ca78e6d52025-08-20T03:27:06ZjpnThe Japan Society of Mechanical EngineersNihon Kikai Gakkai ronbunshu2187-97612025-05-019194625-0005925-0005910.1299/transjsme.25-00059transjsmeContinuous measurement of derailment quotient and wheel-rail contact position in railway vehicle using axially-asymmetric bridge circuits and orthogonal weighting functionsTakatoshi HONDO0Takayuki TANAKA1Railway Technical Research InstituteRailway Technical Research InstituteInstrumented wheelsets are widely used in the railway industry for the purpose of measurement of the wheel-rail interaction forces, which are crucial factors in a running safety assessment. Recently, the author proposed a new configuration of bridge circuit for measuring wheel-rail lateral force, which are categorized as “axially-asymmetric bridge circuit.” The merit of this type of bridge circuit is to reduce the measurement error associated to the lateral contact point shift. In this study, we propose a highly accurate continuous measurement method of the derailment coefficient based on “orthogonal weighting functions” that utilizes the characteristics of an axially-asymmetric bridge circuits. A continuous measurement method for the lateral contact position is also proposed utilizing the concept of the orthogonal weighting functions. The validity of the proposed method was confirmed through roller-rig tests.https://www.jstage.jst.go.jp/article/transjsme/91/946/91_25-00059/_pdf/-char/enrailwayrunning safety assessmentwheel-rail interactionflange climb derailmentinstrumented wheelset |
| spellingShingle | Takatoshi HONDO Takayuki TANAKA Continuous measurement of derailment quotient and wheel-rail contact position in railway vehicle using axially-asymmetric bridge circuits and orthogonal weighting functions Nihon Kikai Gakkai ronbunshu railway running safety assessment wheel-rail interaction flange climb derailment instrumented wheelset |
| title | Continuous measurement of derailment quotient and wheel-rail contact position in railway vehicle using axially-asymmetric bridge circuits and orthogonal weighting functions |
| title_full | Continuous measurement of derailment quotient and wheel-rail contact position in railway vehicle using axially-asymmetric bridge circuits and orthogonal weighting functions |
| title_fullStr | Continuous measurement of derailment quotient and wheel-rail contact position in railway vehicle using axially-asymmetric bridge circuits and orthogonal weighting functions |
| title_full_unstemmed | Continuous measurement of derailment quotient and wheel-rail contact position in railway vehicle using axially-asymmetric bridge circuits and orthogonal weighting functions |
| title_short | Continuous measurement of derailment quotient and wheel-rail contact position in railway vehicle using axially-asymmetric bridge circuits and orthogonal weighting functions |
| title_sort | continuous measurement of derailment quotient and wheel rail contact position in railway vehicle using axially asymmetric bridge circuits and orthogonal weighting functions |
| topic | railway running safety assessment wheel-rail interaction flange climb derailment instrumented wheelset |
| url | https://www.jstage.jst.go.jp/article/transjsme/91/946/91_25-00059/_pdf/-char/en |
| work_keys_str_mv | AT takatoshihondo continuousmeasurementofderailmentquotientandwheelrailcontactpositioninrailwayvehicleusingaxiallyasymmetricbridgecircuitsandorthogonalweightingfunctions AT takayukitanaka continuousmeasurementofderailmentquotientandwheelrailcontactpositioninrailwayvehicleusingaxiallyasymmetricbridgecircuitsandorthogonalweightingfunctions |