1.中国矿业大学(北京) 机电与信息工程学院, 北京 100083
2.中国北方车辆研究所, 北京 100072
刘雨薇(1987— ),女,甘肃天水人,工学博士,副教授;主要研究方向为动力机械传动及摩擦学性能。
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刘雨薇,王叶,付崇智等.AMT换挡滑块轴颈磨损的仿真分析与预测[J].机械传动,2021,45(10):114-119.
Liu Yuwei,Wang Ye,Fu Chongzhi,et al.Simulation Analysis and Prediction of Wear for Neck Journal of Shifting Slider on AMT[J].Journal of Mechanical Transmission,2021,45(10):114-119.
刘雨薇,王叶,付崇智等.AMT换挡滑块轴颈磨损的仿真分析与预测[J].机械传动,2021,45(10):114-119. DOI: 10.16578/j.issn.1004.2539.2021.10.018.
Liu Yuwei,Wang Ye,Fu Chongzhi,et al.Simulation Analysis and Prediction of Wear for Neck Journal of Shifting Slider on AMT[J].Journal of Mechanical Transmission,2021,45(10):114-119. DOI: 10.16578/j.issn.1004.2539.2021.10.018.
为保证滑块使用寿命,提升AMT的换挡品质,针对换挡过程中滑块轴颈与拨叉之间的磨损情况进行数值模拟。建立有限元模型,并基于传热学理论,设置了拨叉和滑块的热边界条件,得出了同步过程中换挡滑块单次换挡结束时的磨损量与温度分布云图。基于Archard磨损理论,对单次换挡结束时的磨损量进行计算。通过BOX设计方法,对所需的17个仿真试验点进行有限元仿真,并且通过响应面分析得到滑块轴颈磨损量的线性回归预测模型,分析了换挡力、转动角度、摩擦因数对滑块轴颈磨损量的影响规律。研究结果表明,转动角度对轴颈磨损量的影响最为显著。
In order to ensure the service life of slider and improve the shift quality,numerical simulation is carried out for the wear between the slider journal and the shift fork during gear shifting. A finite element model is established,and based on the heat transfer theory,the thermal boundary conditions of the shift fork and the slider are set,and the wear amount and temperature distribution cloud of the shift slider at the end of a single shift in the synchronization process is obtained. Based on the Archard wear theory,the wear amount at the end of a single shift is calculated. Through Box-Behnken design method,the finite element simulation is carried out through the required 17 experimental points,and the linear regression prediction model of the wear amount is obtained through response surface analysis,the influence of the shift force,rotation angle,and friction coefficient on the wear amount of the slider is analyzed. The research results show that the rotation angle has the most significant influence on the journal wear.
换挡滑块轴颈磨损量换挡力转动角度摩擦因数
Neck journal of shifting sliderWear lossShifting forceRotating angleCoefficient of friction
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