[关键词]
[摘要]
为较准确预测矿用卡车(automated manual transmission,AMT)变速器齿轮传动系统的动态可靠性,考虑关键构件的柔性及内外部载荷激励的影响,构建了AMT齿轮传动系统刚柔耦合动力学模型,针对服役频次高或载荷恶劣的变速器六挡和七挡传动系统进行了动载荷分析。在此基础上,考虑传动系统载荷动态变化、零件强度退化和各零件之间失效的相关性,对该AMT变速器六挡和七挡传动系统的动态可靠性进行研究,找到了该AMT变速器传动系统的薄弱零部件环节,获得了传动系统及其零部件的可靠度随服役时间的变化规律,为矿用卡车AMT变速器齿轮传动系统的可靠性设计及性能提升奠定了基础。
[Key word]
[Abstract]
To accurately predict the dynamic reliability of the automated manual transmission(AMT) gear system in mining trucks, a rigid-flexible coupling dynamic model was developed. This model considers the flexibility of key components and the effects of internal and external load excitations. Dynamic load analysis was conducted for the sixth-gear and seventh-gear transmission, which are subject to high service frequency and harsh operating conditions. Based on this analysis, the dynamic reliability of these gear systems was evaluated, taking into account the fluctuating loads, degradation in component strength, and the correlation between component failures. The study identified weak elements in the AMT transmission system and provided insights into the reliability of the system and its components over service time. These findings lay the foundation for improving the reliability and performance of AMT gear transmission systems for mining trucks.
[中图分类号]
TH132
[基金项目]
江苏省创新创业团队资助项目(JSSCTD202239);江苏省科技成果转化专项资金资助项目(BA2022033)。