Establishment and Validation of a Structural Dynamics Model with Power Take-Off Driveline for Agricultural Tractors
As off-road vehicles, in addition to field transportation, another vital function of agricultural tractors is to provide power for field machinery. Therefore, the dynamic performance of the power take-off (PTO) driveline directly affects the field reliability of tractors. Firstly, a torsional vibrat...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-08-01
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| Series: | Agriculture |
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| Online Access: | https://www.mdpi.com/2077-0472/12/9/1297 |
| _version_ | 1797492439392452608 |
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| author | Xuedong Shao Bowen Zheng Zhenhao Luo Zhenghe Song |
| author_facet | Xuedong Shao Bowen Zheng Zhenhao Luo Zhenghe Song |
| author_sort | Xuedong Shao |
| collection | DOAJ |
| description | As off-road vehicles, in addition to field transportation, another vital function of agricultural tractors is to provide power for field machinery. Therefore, the dynamic performance of the power take-off (PTO) driveline directly affects the field reliability of tractors. Firstly, a torsional vibration coupled spatial dynamics model of the power take-off driveline is proposed according to the classical machine driveline dynamics and gear dynamics theory. In the dynamics model, the interactions among the vertical, lateral, and rotational motions of the driveline parts are fully included. The coupling vibrations from internal excitations (such as tooth surface friction, gear time-varying mesh, and engine pulse) and external excitations (such as field machinery load) are also considered. Secondly, the simulation results of the model are obtained using the numerical solving algorithm <i>ode15s</i>. The actual experiment is carried out on the indoor Tractor PTO Test Bench. Then, the model is verified by comparing the test results with the simulation results. Finally, the dynamic characteristics of the whole driveline are revealed under different drive modes, especially strong interactions between the driveline and field machinery in low-speed and heavy-load mode. The gear mesh forces and the root mean square (RMS) values of the acceleration amplitude for the main parts generally decrease gradually with the increase in the PTO rotation speed and the decrease in PTO torque. Furthermore, the model can be applied to reliability assessment, for instance, vibration, damage, and fatigue of off-road vehicles considering gear transmissions, particularly in a field working environment. |
| first_indexed | 2024-03-10T01:02:44Z |
| format | Article |
| id | doaj.art-a08dea7c734e4a7790a9d68c899ef00c |
| institution | Directory Open Access Journal |
| issn | 2077-0472 |
| language | English |
| last_indexed | 2024-03-10T01:02:44Z |
| publishDate | 2022-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Agriculture |
| spelling | doaj.art-a08dea7c734e4a7790a9d68c899ef00c2023-11-23T14:31:37ZengMDPI AGAgriculture2077-04722022-08-01129129710.3390/agriculture12091297Establishment and Validation of a Structural Dynamics Model with Power Take-Off Driveline for Agricultural TractorsXuedong Shao0Bowen Zheng1Zhenhao Luo2Zhenghe Song3College of Engineering, China Agricultural University, Beijing 100083, ChinaCollege of Engineering, China Agricultural University, Beijing 100083, ChinaCollege of Engineering, China Agricultural University, Beijing 100083, ChinaCollege of Engineering, China Agricultural University, Beijing 100083, ChinaAs off-road vehicles, in addition to field transportation, another vital function of agricultural tractors is to provide power for field machinery. Therefore, the dynamic performance of the power take-off (PTO) driveline directly affects the field reliability of tractors. Firstly, a torsional vibration coupled spatial dynamics model of the power take-off driveline is proposed according to the classical machine driveline dynamics and gear dynamics theory. In the dynamics model, the interactions among the vertical, lateral, and rotational motions of the driveline parts are fully included. The coupling vibrations from internal excitations (such as tooth surface friction, gear time-varying mesh, and engine pulse) and external excitations (such as field machinery load) are also considered. Secondly, the simulation results of the model are obtained using the numerical solving algorithm <i>ode15s</i>. The actual experiment is carried out on the indoor Tractor PTO Test Bench. Then, the model is verified by comparing the test results with the simulation results. Finally, the dynamic characteristics of the whole driveline are revealed under different drive modes, especially strong interactions between the driveline and field machinery in low-speed and heavy-load mode. The gear mesh forces and the root mean square (RMS) values of the acceleration amplitude for the main parts generally decrease gradually with the increase in the PTO rotation speed and the decrease in PTO torque. Furthermore, the model can be applied to reliability assessment, for instance, vibration, damage, and fatigue of off-road vehicles considering gear transmissions, particularly in a field working environment.https://www.mdpi.com/2077-0472/12/9/1297agricultural tractorpower take-off drivelinecoupled torsional vibrationdifferent drive modesdynamic performance |
| spellingShingle | Xuedong Shao Bowen Zheng Zhenhao Luo Zhenghe Song Establishment and Validation of a Structural Dynamics Model with Power Take-Off Driveline for Agricultural Tractors Agriculture agricultural tractor power take-off driveline coupled torsional vibration different drive modes dynamic performance |
| title | Establishment and Validation of a Structural Dynamics Model with Power Take-Off Driveline for Agricultural Tractors |
| title_full | Establishment and Validation of a Structural Dynamics Model with Power Take-Off Driveline for Agricultural Tractors |
| title_fullStr | Establishment and Validation of a Structural Dynamics Model with Power Take-Off Driveline for Agricultural Tractors |
| title_full_unstemmed | Establishment and Validation of a Structural Dynamics Model with Power Take-Off Driveline for Agricultural Tractors |
| title_short | Establishment and Validation of a Structural Dynamics Model with Power Take-Off Driveline for Agricultural Tractors |
| title_sort | establishment and validation of a structural dynamics model with power take off driveline for agricultural tractors |
| topic | agricultural tractor power take-off driveline coupled torsional vibration different drive modes dynamic performance |
| url | https://www.mdpi.com/2077-0472/12/9/1297 |
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