An Investigation into the Modeling Methodology of the Coil Spring
Joint Authors
Dai, Liangcheng
Gao, Hongxing
Chi, Mao-Ru
Sun, Jianfeng
Source
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-06-24
Country of Publication
Egypt
No. of Pages
13
Main Subjects
Abstract EN
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.
American Psychological Association (APA)
Dai, Liangcheng& Chi, Mao-Ru& Gao, Hongxing& Sun, Jianfeng. 2020. An Investigation into the Modeling Methodology of the Coil Spring. Shock and Vibration،Vol. 2020, no. 2020, pp.1-13.
https://search.emarefa.net/detail/BIM-1210527
Modern Language Association (MLA)
Dai, Liangcheng…[et al.]. An Investigation into the Modeling Methodology of the Coil Spring. Shock and Vibration No. 2020 (2020), pp.1-13.
https://search.emarefa.net/detail/BIM-1210527
American Medical Association (AMA)
Dai, Liangcheng& Chi, Mao-Ru& Gao, Hongxing& Sun, Jianfeng. An Investigation into the Modeling Methodology of the Coil Spring. Shock and Vibration. 2020. Vol. 2020, no. 2020, pp.1-13.
https://search.emarefa.net/detail/BIM-1210527
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1210527