Damage Diagnosis of Railway Vehicle Car Body Based on Strain Modes

Hui Cao; Gangjun Li; Fengshou Gu

doi:10.1007/978-3-030-99075-6_44

Damage Diagnosis of Railway Vehicle Car Body Based on Strain Modes

Hui Cao, Gangjun Li, Fengshou Gu

Chengdu Technological University

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

1 Citation (Scopus)

Abstract

In the rail vehicle structure design, the key of the strength design and fatigue life estimation is to analyse the stress state of the structure under the dynamic load. As the stress cannot be measured directly, the displacement response model of the body structure is established by the displacement mode analysis method, and the strain response of the car body is obtained by the relationship between displacement and strain, thus the stress state is obtained. Since displacement to strain is a differential process, the variation of displacement will be magnified and the error will be generated. Strain mode theory and its property are derived from displacement mode theory. The results show that it is more sensitive for strain mode than displacement mode through the simulation analysis of the car body equivalent vertical model calculation. Strain mode difference curve can determine the structural damage location. The vehicle FE model verifies this result. The strain and stress versus time history of car body can be obtained by the mode superposition method, which provides basis for fatigue life prediction and load spectrum research.

Original language	English
Title of host publication	Proceedings of IncoME-VI and TEPEN 2021
Subtitle of host publication	Performance Engineering and Maintenance Engineering
Editors	Hao Zhang, Guojin Feng, Hongjun Wang, Fengshou Gu, Jyoti K. Sinha
Publisher	Springer, Cham
Pages	543-554
Number of pages	12
Volume	117
ISBN (Electronic)	9783030990756
ISBN (Print)	9783030990749
DOIs	https://doi.org/10.1007/978-3-030-99075-6_44
Publication status	Published - 18 Sept 2022
Event	6th International Conference on Maintenance Engineering, IncoME-VI and the Conference of the Efficiency and Performance Engineering Network, TEPEN 2021 - Hebei University of Technology, Tianjin, China Duration: 20 Oct 2021 → 23 Oct 2021 Conference number: 6 https://tepen.net/conference/tepen2021/

Publication series

Name	Mechanisms and Machine Science
Publisher	Springer
Volume	117
ISSN (Print)	2211-0984
ISSN (Electronic)	2211-0992

Conference

Conference	6th International Conference on Maintenance Engineering, IncoME-VI and the Conference of the Efficiency and Performance Engineering Network, TEPEN 2021
Abbreviated title	TEPEN-2021 and IncoME-VI
Country/Territory	China
City	Tianjin
Period	20/10/21 → 23/10/21
Internet address	https://tepen.net/conference/tepen2021/

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 9 Industry, Innovation, and Infrastructure

Access to Document

10.1007/978-3-030-99075-6_44Licence: Unspecified

Cite this

Cao, H., Li, G., & Gu, F. (2022). Damage Diagnosis of Railway Vehicle Car Body Based on Strain Modes. In H. Zhang, G. Feng, H. Wang, F. Gu, & J. K. Sinha (Eds.), Proceedings of IncoME-VI and TEPEN 2021 : Performance Engineering and Maintenance Engineering (Vol. 117, pp. 543-554). (Mechanisms and Machine Science; Vol. 117). Springer, Cham. https://doi.org/10.1007/978-3-030-99075-6_44

@inproceedings{9d6e84a9265b4a12bb7d2442bec7daf4,

title = "Damage Diagnosis of Railway Vehicle Car Body Based on Strain Modes",

abstract = "In the rail vehicle structure design, the key of the strength design and fatigue life estimation is to analyse the stress state of the structure under the dynamic load. As the stress cannot be measured directly, the displacement response model of the body structure is established by the displacement mode analysis method, and the strain response of the car body is obtained by the relationship between displacement and strain, thus the stress state is obtained. Since displacement to strain is a differential process, the variation of displacement will be magnified and the error will be generated. Strain mode theory and its property are derived from displacement mode theory. The results show that it is more sensitive for strain mode than displacement mode through the simulation analysis of the car body equivalent vertical model calculation. Strain mode difference curve can determine the structural damage location. The vehicle FE model verifies this result. The strain and stress versus time history of car body can be obtained by the mode superposition method, which provides basis for fatigue life prediction and load spectrum research.",

keywords = "Car body, Damage diagnosis, Railway Vehicle, Strain mode, Strength",

author = "Hui Cao and Gangjun Li and Fengshou Gu",

note = "Publisher Copyright: {\textcopyright} 2023, The Author(s), under exclusive license to Springer Nature Switzerland AG.; 6th International Conference on Maintenance Engineering, IncoME-VI and the Conference of the Efficiency and Performance Engineering Network, TEPEN 2021, TEPEN-2021 and IncoME-VI ; Conference date: 20-10-2021 Through 23-10-2021",

year = "2022",

month = sep,

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doi = "10.1007/978-3-030-99075-6\_44",

language = "English",

isbn = "9783030990749",

volume = "117",

series = "Mechanisms and Machine Science",

publisher = "Springer, Cham",

pages = "543--554",

editor = "Hao Zhang and Guojin Feng and Hongjun Wang and Fengshou Gu and Sinha, \{Jyoti K.\}",

booktitle = "Proceedings of IncoME-VI and TEPEN 2021",

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Cao, H, Li, G & Gu, F 2022, Damage Diagnosis of Railway Vehicle Car Body Based on Strain Modes. in H Zhang, G Feng, H Wang, F Gu & JK Sinha (eds), Proceedings of IncoME-VI and TEPEN 2021 : Performance Engineering and Maintenance Engineering. vol. 117, Mechanisms and Machine Science, vol. 117, Springer, Cham, pp. 543-554, 6th International Conference on Maintenance Engineering, IncoME-VI and the Conference of the Efficiency and Performance Engineering Network, TEPEN 2021, Tianjin, China, 20/10/21. https://doi.org/10.1007/978-3-030-99075-6_44

Damage Diagnosis of Railway Vehicle Car Body Based on Strain Modes. / Cao, Hui; Li, Gangjun; Gu, Fengshou.
Proceedings of IncoME-VI and TEPEN 2021 : Performance Engineering and Maintenance Engineering. ed. / Hao Zhang; Guojin Feng; Hongjun Wang; Fengshou Gu; Jyoti K. Sinha. Vol. 117 Springer, Cham, 2022. p. 543-554 (Mechanisms and Machine Science; Vol. 117).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Damage Diagnosis of Railway Vehicle Car Body Based on Strain Modes

AU - Cao, Hui

AU - Li, Gangjun

AU - Gu, Fengshou

N1 - Conference code: 6

PY - 2022/9/18

Y1 - 2022/9/18

N2 - In the rail vehicle structure design, the key of the strength design and fatigue life estimation is to analyse the stress state of the structure under the dynamic load. As the stress cannot be measured directly, the displacement response model of the body structure is established by the displacement mode analysis method, and the strain response of the car body is obtained by the relationship between displacement and strain, thus the stress state is obtained. Since displacement to strain is a differential process, the variation of displacement will be magnified and the error will be generated. Strain mode theory and its property are derived from displacement mode theory. The results show that it is more sensitive for strain mode than displacement mode through the simulation analysis of the car body equivalent vertical model calculation. Strain mode difference curve can determine the structural damage location. The vehicle FE model verifies this result. The strain and stress versus time history of car body can be obtained by the mode superposition method, which provides basis for fatigue life prediction and load spectrum research.

AB - In the rail vehicle structure design, the key of the strength design and fatigue life estimation is to analyse the stress state of the structure under the dynamic load. As the stress cannot be measured directly, the displacement response model of the body structure is established by the displacement mode analysis method, and the strain response of the car body is obtained by the relationship between displacement and strain, thus the stress state is obtained. Since displacement to strain is a differential process, the variation of displacement will be magnified and the error will be generated. Strain mode theory and its property are derived from displacement mode theory. The results show that it is more sensitive for strain mode than displacement mode through the simulation analysis of the car body equivalent vertical model calculation. Strain mode difference curve can determine the structural damage location. The vehicle FE model verifies this result. The strain and stress versus time history of car body can be obtained by the mode superposition method, which provides basis for fatigue life prediction and load spectrum research.

KW - Car body

KW - Damage diagnosis

KW - Railway Vehicle

KW - Strain mode

KW - Strength

UR - https://www.scopus.com/pages/publications/85138808350

UR - https://link.springer.com/book/10.1007/978-3-030-99075-6

U2 - 10.1007/978-3-030-99075-6_44

DO - 10.1007/978-3-030-99075-6_44

M3 - Conference contribution

AN - SCOPUS:85138808350

SN - 9783030990749

VL - 117

T3 - Mechanisms and Machine Science

SP - 543

EP - 554

BT - Proceedings of IncoME-VI and TEPEN 2021

A2 - Zhang, Hao

A2 - Feng, Guojin

A2 - Wang, Hongjun

A2 - Gu, Fengshou

A2 - Sinha, Jyoti K.

PB - Springer, Cham

T2 - 6th International Conference on Maintenance Engineering, IncoME-VI and the Conference of the Efficiency and Performance Engineering Network, TEPEN 2021

Y2 - 20 October 2021 through 23 October 2021

ER -

Damage Diagnosis of Railway Vehicle Car Body Based on Strain Modes

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UN SDGs

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