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| Research on the interval dynamic stiffness model of hydraulic bushing for the vehicle suspension control arm |
| Received:April 14, 2019 Revised:June 14, 2019 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7511/jslx20190414001 |
| KeyWord:hydraulic bushing suspension control arm dynamic stiffness interval uncertainty theory interval precision |
| Author | Institution |
| 陈科 |
合肥工业大学 机械工程学院, 合肥 |
| 於孝朋 |
合肥工业大学 机械工程学院, 合肥 |
| 郑红梅 |
合肥工业大学 机械工程学院, 合肥 |
| 王海朔 |
合肥工业大学 机械工程学院, 合肥 |
| 张国军 |
合肥工业大学 机械工程学院, 合肥 |
| 吴睿 |
合肥工业大学 机械工程学院, 合肥 |
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| Abstract: |
| The dynamic stiffness model in the literature only gave an idealized curve for the variation of dynamic stiffness,which normally couldn’t reproduce the upper and lower bound variation curves.To solve this problem,a dynamic stiffness model was established with the application of the interval uncertainty theory.The fluid inertia coefficient and the flow damping coefficient were defined as interval variables.The simulation results given by the interval dynamic stiffness model are in good agreement with the experimental results in the literature,indicating that the proposed model is correct.The subinterval combination method was applied to obtain the interval dynamic stiffness with a certain level of accuracy,and the optimized upper and lower bound variation curves of the dynamic stiffness could be achieved.The interval dynamic stiffness model provides a comprehensive approach for the description of dynamic stiffness,which is a great progress for the improvement of the model. |
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