Optimization of the Input Shaft Torsional Amplitude of a DCT Gearbox
Torsional vibration of the automobile transmission system may cause roar or abnormal noise in the car. Torsional vibration excitation generally comes from the main order of the engine and is transmitted to the gearbox through torsional vibration damper. Therefore, the torsional amplitude of the gear...
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| Format: | Article |
| Language: | zho |
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Editorial Office of Journal of Mechanical Transmission
2024-04-01
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| Series: | Jixie chuandong |
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| Online Access: | http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2024.04.020 |
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| _version_ | 1841546935770546176 |
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| author | Zhang Guihui Shi Lei Ma Junming Wang Xiangwen Sun Hongming Dong Liyun |
| author_facet | Zhang Guihui Shi Lei Ma Junming Wang Xiangwen Sun Hongming Dong Liyun |
| author_sort | Zhang Guihui |
| collection | DOAJ |
| description | Torsional vibration of the automobile transmission system may cause roar or abnormal noise in the car. Torsional vibration excitation generally comes from the main order of the engine and is transmitted to the gearbox through torsional vibration damper. Therefore, the torsional amplitude of the gearbox input shaft is the first factor to control the torsional vibration of the whole transmission system. A passenger car is equipped with a 6-speed wet double clutch transmission (WDCT). The maximum torsional amplitude of the input shaft of the gearbox from 2nd gear to 6th gear has reached 494.38 rad/s<sup>2</sup>, which does not meet the design requirement of 400 rad/s<sup>2</sup>. In order to solve the problem that the torsional amplitude of the gearbox input shaft is too large, this study uses AMESim software to build a torsional vibration analysis model with dual mass flywheel torsional vibration damper under full throttle driving condition, taking the engine speed fluctuation signal collected by a real vehicle as the excitation source. Through simulation analysis, the influences of the primary mass moment of inertia, secondary mass moment of inertia, torsional stiffness, basic damping torque and free rotation angle of the dual mass flywheel on the torsional amplitude of the gearbox input shaft are determined, and the optimization scheme of the transmission system is obtained through orthogonal experimental design, and the effectiveness of the optimization scheme is verified by a real vehicle. The research methods and ideas of this study provide a solution for the torsional vibration optimization of the automobile transmission system with dual mass flywheel torsional vibration damper. |
| format | Article |
| id | doaj-art-3a46c3b627634210ae975bbb21b68010 |
| institution | Kabale University |
| issn | 1004-2539 |
| language | zho |
| publishDate | 2024-04-01 |
| publisher | Editorial Office of Journal of Mechanical Transmission |
| record_format | Article |
| series | Jixie chuandong |
| spelling | doaj-art-3a46c3b627634210ae975bbb21b680102025-01-10T15:00:12ZzhoEditorial Office of Journal of Mechanical TransmissionJixie chuandong1004-25392024-04-014814815355345975Optimization of the Input Shaft Torsional Amplitude of a DCT GearboxZhang GuihuiShi LeiMa JunmingWang XiangwenSun HongmingDong LiyunTorsional vibration of the automobile transmission system may cause roar or abnormal noise in the car. Torsional vibration excitation generally comes from the main order of the engine and is transmitted to the gearbox through torsional vibration damper. Therefore, the torsional amplitude of the gearbox input shaft is the first factor to control the torsional vibration of the whole transmission system. A passenger car is equipped with a 6-speed wet double clutch transmission (WDCT). The maximum torsional amplitude of the input shaft of the gearbox from 2nd gear to 6th gear has reached 494.38 rad/s<sup>2</sup>, which does not meet the design requirement of 400 rad/s<sup>2</sup>. In order to solve the problem that the torsional amplitude of the gearbox input shaft is too large, this study uses AMESim software to build a torsional vibration analysis model with dual mass flywheel torsional vibration damper under full throttle driving condition, taking the engine speed fluctuation signal collected by a real vehicle as the excitation source. Through simulation analysis, the influences of the primary mass moment of inertia, secondary mass moment of inertia, torsional stiffness, basic damping torque and free rotation angle of the dual mass flywheel on the torsional amplitude of the gearbox input shaft are determined, and the optimization scheme of the transmission system is obtained through orthogonal experimental design, and the effectiveness of the optimization scheme is verified by a real vehicle. The research methods and ideas of this study provide a solution for the torsional vibration optimization of the automobile transmission system with dual mass flywheel torsional vibration damper.http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2024.04.020Torsional vibrationDual mass flywheelAMESim simulationOrthogonal experiment |
| spellingShingle | Zhang Guihui Shi Lei Ma Junming Wang Xiangwen Sun Hongming Dong Liyun Optimization of the Input Shaft Torsional Amplitude of a DCT Gearbox Jixie chuandong Torsional vibration Dual mass flywheel AMESim simulation Orthogonal experiment |
| title | Optimization of the Input Shaft Torsional Amplitude of a DCT Gearbox |
| title_full | Optimization of the Input Shaft Torsional Amplitude of a DCT Gearbox |
| title_fullStr | Optimization of the Input Shaft Torsional Amplitude of a DCT Gearbox |
| title_full_unstemmed | Optimization of the Input Shaft Torsional Amplitude of a DCT Gearbox |
| title_short | Optimization of the Input Shaft Torsional Amplitude of a DCT Gearbox |
| title_sort | optimization of the input shaft torsional amplitude of a dct gearbox |
| topic | Torsional vibration Dual mass flywheel AMESim simulation Orthogonal experiment |
| url | http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2024.04.020 |
| work_keys_str_mv | AT zhangguihui optimizationoftheinputshafttorsionalamplitudeofadctgearbox AT shilei optimizationoftheinputshafttorsionalamplitudeofadctgearbox AT majunming optimizationoftheinputshafttorsionalamplitudeofadctgearbox AT wangxiangwen optimizationoftheinputshafttorsionalamplitudeofadctgearbox AT sunhongming optimizationoftheinputshafttorsionalamplitudeofadctgearbox AT dongliyun optimizationoftheinputshafttorsionalamplitudeofadctgearbox |