不同工况下软质丁苯橡胶轮表面磨损颗粒的产生量及磨损机理

采用自行设计的摩擦磨损试验机,研究了磨损时间、载荷、滚动速度、相对湿度对软质丁苯橡胶轮表面产生的磨损颗粒数量和橡胶轮温度的影响,分析了不同工况下的磨损机理;采用正交试验分析了各因素的影响程度。结果表明:磨损颗粒随磨损时间和载荷的增加而增多,随滚动速度和相对湿度的增大而减少;粒径为2.5μm的磨损颗粒数量和橡胶轮温度随各种因素的变化趋势相同,可通过温度的变化预测磨损小颗粒的产生量;低载荷下的磨损方式为疲劳磨损,高载荷下为疲劳磨损和磨粒磨损;各因素影响程度的大小顺序为载荷、滚动速度、相对湿度、对磨轮种类;载荷为100 N、滚动速度为8 m·s^(-1)、相对湿度为60%、对磨轮为水泥轮时,磨损颗粒数量最少。

Analysis of Static Temperature Field of Vehicle's Solid Rubber Tire

Aim To analyse the static temperature field ofthe solid rubber tire(SRT).Methods The mechanical and thermal FE models were developed and analyzed respectively with the FE software ANSYS.Results The maximum temperature becomes higher with the higher with the higher velocity of tire and scales down slightly with the higher convection coefficients.The mixed models are reasonable.Conclusion The study on static temperature field is important and reasonable.It gives the fundament for life analysis of SRT.