An Investigation into the Modeling Methodology of the Coil Spring
The coil spring is an important element in the suspension system of railway vehicles, and its structural vibration caused by the mass distribution can deteriorate the dynamic performance of the vehicle. However, the coil spring is usually modelled as a simple linear force element without considering...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2020-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2020/8814332 |
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| _version_ | 1832546939412938752 |
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| author | Liangcheng Dai Maoru Chi Hongxing Gao Jianfeng Sun |
| author_facet | Liangcheng Dai Maoru Chi Hongxing Gao Jianfeng Sun |
| author_sort | Liangcheng Dai |
| collection | DOAJ |
| description | The coil spring is an important element in the suspension system of railway vehicles, and its structural vibration caused by the mass distribution can deteriorate the dynamic performance of the vehicle. However, the coil spring is usually modelled as a simple linear force element without considering the dynamic characteristics in multibody dynamic simulations of railway vehicles. To integrate the dynamic characteristics of the coil spring into the simulation, three equivalent dynamic models of the coil spring are established by treating the coil spring as multimass spring series, Timoshenko beam, and flexible spring, respectively. The frequency-sweep method is applied to obtain the dynamic response of the proposed models of coil spring, and the accuracy of the models’ results has been compared and verified by the laboratory test. Results show that all of these three equivalent models can reflect the influence of the spring mass distribution on its dynamic responses. Compared with the mass-spring series and beam element equivalent models, the flexible spring model can better reflect the dynamic stiffness and stress of the coil spring changing with the exciting frequency. Thus, the flexible spring model proposed in this paper is more applicable to railway vehicle system dynamics and the fatigue analysis. |
| format | Article |
| id | doaj-art-501408612c464936b35fdcf0cf477556 |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-501408612c464936b35fdcf0cf4775562025-02-03T06:46:28ZengWileyShock and Vibration1070-96221875-92032020-01-01202010.1155/2020/88143328814332An Investigation into the Modeling Methodology of the Coil SpringLiangcheng Dai0Maoru Chi1Hongxing Gao2Jianfeng Sun3State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu 610031, ChinaState Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu 610031, ChinaState Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu 610031, ChinaState Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu 610031, ChinaThe coil spring is an important element in the suspension system of railway vehicles, and its structural vibration caused by the mass distribution can deteriorate the dynamic performance of the vehicle. However, the coil spring is usually modelled as a simple linear force element without considering the dynamic characteristics in multibody dynamic simulations of railway vehicles. To integrate the dynamic characteristics of the coil spring into the simulation, three equivalent dynamic models of the coil spring are established by treating the coil spring as multimass spring series, Timoshenko beam, and flexible spring, respectively. The frequency-sweep method is applied to obtain the dynamic response of the proposed models of coil spring, and the accuracy of the models’ results has been compared and verified by the laboratory test. Results show that all of these three equivalent models can reflect the influence of the spring mass distribution on its dynamic responses. Compared with the mass-spring series and beam element equivalent models, the flexible spring model can better reflect the dynamic stiffness and stress of the coil spring changing with the exciting frequency. Thus, the flexible spring model proposed in this paper is more applicable to railway vehicle system dynamics and the fatigue analysis.http://dx.doi.org/10.1155/2020/8814332 |
| spellingShingle | Liangcheng Dai Maoru Chi Hongxing Gao Jianfeng Sun An Investigation into the Modeling Methodology of the Coil Spring Shock and Vibration |
| title | An Investigation into the Modeling Methodology of the Coil Spring |
| title_full | An Investigation into the Modeling Methodology of the Coil Spring |
| title_fullStr | An Investigation into the Modeling Methodology of the Coil Spring |
| title_full_unstemmed | An Investigation into the Modeling Methodology of the Coil Spring |
| title_short | An Investigation into the Modeling Methodology of the Coil Spring |
| title_sort | investigation into the modeling methodology of the coil spring |
| url | http://dx.doi.org/10.1155/2020/8814332 |
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