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| Dynamic analysis and comfort evaluation of the three-dimension Body-vehicle-road coupled system |
| Received:November 30, 2011 Revised:February 14, 2012 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7511/jslx201302022 |
| KeyWord:body-vehicle-road coupled system beam element elastic deck simulation analysis comfort evaluation |
| Author | Institution |
| 张丙强 |
中南大学 土木工程学院,长沙 ;福建工程学院 土木工程学院,福州 |
| 李亮 |
中南大学 土木工程学院,长沙 |
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| Abstract: |
| The vehicle body is supposed as 3d elastic beam and the wheels as the rigid body.The human body is simplified as the parallel dynamic model.The road is supposed as the deck on the Kelvin base.And then by the dynamic model of tire stress,the vehicle and the road are coupled.The dynamic model of the body-vehicle-road is presented,and its functions are derived.The road function is divided with the Galekin method,and the system functions are solved with the New-mark method.The vehicle riding comfort of the vehicle is appraised with the RMS of the body vibrating acceleration.The effects of the system parameters on the vehicle riding comfort are also analyzed.The results indicate that the error can be achieved the highest about 30% between the model of this paper and the traditional,the body-vehicle interaction and the vehicle-road interaction cannot be ignored when analyzing the vehicle vibration and the vehicle riding comfort.The system parameters put much influence on the vehicle riding comfort. |