刘雨薇,孙园植,王叶,付崇智,陈浩,李秀明.AMT换挡滑块的磨损量预测与磨损规律数值分析[J].表面技术,2021,50(9):205-214.
LIU Yu-wei,SUN Yuan-zhi,WANG Ye,FU Chong-zhi,CHEN Hao,LI Xiu-ming.Numerical Analysis on Wear Prediction and Wear Rule of the Shift Slider on AMT[J].Surface Technology,2021,50(9):205-214 |
| AMT换挡滑块的磨损量预测与磨损规律数值分析 |
| Numerical Analysis on Wear Prediction and Wear Rule of the Shift Slider on AMT |
| 投稿时间：2020-11-06 修订日期：2021-01-18 |
| DOI：10.16490/j.cnki.issn.1001-3660.2021.09.021 |
| 中文关键词: 换挡滑块 磨损 换挡力 转速 摩擦系数 响应面分析 |
| 英文关键词:shift slider wear shifting force speed friction coefficient response surface analysis |
| 基金项目:国家自然科学基金项目(52105232);中央高校基本科研业务费专项资金(2021YQJD29) |
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| Author | Institution |
| LIU Yu-wei | School of Mechanical Electronic & Information Engineering, China University of Mining and Technology, Beijing 100083, China |
| SUN Yuan-zhi | School of Mechanical Electronic & Information Engineering, China University of Mining and Technology, Beijing 100083, China |
| WANG Ye | China North Vehicle Research Institute, Beijing 100072, China |
| FU Chong-zhi | School of Mechanical Electronic & Information Engineering, China University of Mining and Technology, Beijing 100083, China |
| CHEN Hao | School of Mechanical Electronic & Information Engineering, China University of Mining and Technology, Beijing 100083, China |
| LI Xiu-ming | School of Mechanical Electronic & Information Engineering, China University of Mining and Technology, Beijing 100083, China |
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| 中文摘要: |
| 目的 建立电控机械式自动变速箱(AMT)中同步器换挡滑块的磨损量预测模型，分析磨损量变化规律，为提升AMT的换挡品质奠定基础。方法 基于传热学理论，考虑换挡滑块与接合套的换热边界条件，建立单次换挡过程中滑块磨损量计算的有限元模型。根据BOX方法设计模拟方案，采用Archard磨损理论，将接合套的实际波动转速进行近似替代，对不同换档力、接合套转速、摩擦系数作用下的换挡滑块磨损量进行仿真计算，并且通过响应面分析，得到磨损量的线性回归预测模型。在此基础上，研究各因素对磨损量的影响规律。结果 预测模型计算得到的磨损量与试验测试结果间的误差小于5%。换挡力、接合套转速、摩擦系数皆为磨损量的主要影响因素，磨损量与三者呈正相关性。接合套的转速和换挡力对单次磨损的影响更为显著，二者的交互作用明显。在转速为750~5000 r/min时，磨损量的增量随着转速的增加而减小。 结论 换挡力和转速对滑块磨损量的影响较大。在高转速条件下，通过控制换挡力的大小可以有效减少换挡滑块的磨损量，提升AMT的使用寿命。 |
| 英文摘要: |
| In order to improve the shifting quality of the automated manual transmission (AMT), the wear prediction model of the synchronizer shift slider in AMT was established and the wear change law was analyzed. Based on the heat transfer theory and considering the heat transfer boundary conditions between the shift slider and the sleeve, a finite element model for calculating the wear of the shift slider during a single shift was established. The simulation scheme was designed according to the BOX design method, and the actual fluctuating speed of the sleeve was approximately replaced. The simulation calculation was performed on the wear of the shift slider under different shifting forces, sleeve speeds and friction coefficients by the Archard wear theory, and the linear regression prediction model of wear was obtained through response surface analysis. On this basis, the influence law of various factors on the amount of wear was studied. The error between the prediction model and the test result is less than 5%. Shifting force, sleeve speed and friction coefficient were the main influencing factors of wear, and there was a positive correlation between the wear and the three factors. The sleeve speed and shifting force had more significant influence on single wear, and the interaction between them was obvious. In the range of 750 r/min to 5000 r/min, the increment of wear decreased with the increase of speed. Shifting force and speed have great influence on the wear of shift slider. Especially in the case of high speed, by controlling the size of the shifting force, the wear of the shift slider can be effectively reduced, and the service life of AMT can be improved. |
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