Modeling and Analysis of Amplitude-Frequency Characteristics of Torsional Vibration for Automotive Powertrain
In the present paper, the amplitude-frequency characteristics of torsional vibration are discussed theoretically and experimentally for automotive powertrain. A bending-torsional-lateral-rocking coupled dynamic model with time-dependent mesh stiffness, backlash, transmission error etc. is proposed b...
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| Format: | Article |
| Language: | English |
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Wiley
2020-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2020/6403413 |
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| author | Jinli Xu Jiwei Zhu Feifan Xia |
| author_facet | Jinli Xu Jiwei Zhu Feifan Xia |
| author_sort | Jinli Xu |
| collection | DOAJ |
| description | In the present paper, the amplitude-frequency characteristics of torsional vibration are discussed theoretically and experimentally for automotive powertrain. A bending-torsional-lateral-rocking coupled dynamic model with time-dependent mesh stiffness, backlash, transmission error etc. is proposed by the lumped-mass method to analysis the amplitude-frequency characteristic of torsional vibration for practical purposes, and equations of motive are derived. The Runge–Kutta method is employed to conduct a sweep frequency response analysis numerically. Furthermore, a torsional experiment is performed and validates the feasibility of the theoretical model. As a result, some torsional characteristics of automotive powertrain are obtained. The first three-order nature torsional frequencies are predicted. Torsional behaviors only affect the vibration characteristics of a complete vehicle at low-speed condition and will be reinforced expectedly while increasing torque fluctuation. Gear mesh excitations have little effects on torsional responses for such components located before mesh point but a lot for ones behind it. In particular, it is noted that the torsional system has a stiffness-softening characteristic with respect to torque fluctuation. |
| format | Article |
| id | doaj-art-725e77c586b54c5cb1574d8880de9bbc |
| institution | OA Journals |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-725e77c586b54c5cb1574d8880de9bbc2025-08-20T02:06:23ZengWileyShock and Vibration1070-96221875-92032020-01-01202010.1155/2020/64034136403413Modeling and Analysis of Amplitude-Frequency Characteristics of Torsional Vibration for Automotive PowertrainJinli Xu0Jiwei Zhu1Feifan Xia2School of Mechanical and Electronic Engineering, Wuhan University of Technology, 122 Luoshi Road, Hongshan District, Wuhan 430070, Hubei, ChinaSchool of Mechanical and Electronic Engineering, Wuhan University of Technology, 122 Luoshi Road, Hongshan District, Wuhan 430070, Hubei, ChinaSchool of Mechanical and Electronic Engineering, Wuhan University of Technology, 122 Luoshi Road, Hongshan District, Wuhan 430070, Hubei, ChinaIn the present paper, the amplitude-frequency characteristics of torsional vibration are discussed theoretically and experimentally for automotive powertrain. A bending-torsional-lateral-rocking coupled dynamic model with time-dependent mesh stiffness, backlash, transmission error etc. is proposed by the lumped-mass method to analysis the amplitude-frequency characteristic of torsional vibration for practical purposes, and equations of motive are derived. The Runge–Kutta method is employed to conduct a sweep frequency response analysis numerically. Furthermore, a torsional experiment is performed and validates the feasibility of the theoretical model. As a result, some torsional characteristics of automotive powertrain are obtained. The first three-order nature torsional frequencies are predicted. Torsional behaviors only affect the vibration characteristics of a complete vehicle at low-speed condition and will be reinforced expectedly while increasing torque fluctuation. Gear mesh excitations have little effects on torsional responses for such components located before mesh point but a lot for ones behind it. In particular, it is noted that the torsional system has a stiffness-softening characteristic with respect to torque fluctuation.http://dx.doi.org/10.1155/2020/6403413 |
| spellingShingle | Jinli Xu Jiwei Zhu Feifan Xia Modeling and Analysis of Amplitude-Frequency Characteristics of Torsional Vibration for Automotive Powertrain Shock and Vibration |
| title | Modeling and Analysis of Amplitude-Frequency Characteristics of Torsional Vibration for Automotive Powertrain |
| title_full | Modeling and Analysis of Amplitude-Frequency Characteristics of Torsional Vibration for Automotive Powertrain |
| title_fullStr | Modeling and Analysis of Amplitude-Frequency Characteristics of Torsional Vibration for Automotive Powertrain |
| title_full_unstemmed | Modeling and Analysis of Amplitude-Frequency Characteristics of Torsional Vibration for Automotive Powertrain |
| title_short | Modeling and Analysis of Amplitude-Frequency Characteristics of Torsional Vibration for Automotive Powertrain |
| title_sort | modeling and analysis of amplitude frequency characteristics of torsional vibration for automotive powertrain |
| url | http://dx.doi.org/10.1155/2020/6403413 |
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