永久磁铁同步电机在选择性合规组装中的寿命预测 机器人手臂 考虑到绝缘热老化
Mingxu Chen1, Bingye Zhang1, Haibo Li1
1State Grid Taizhou Power Company, Taizhou 318000, China.
Sensors (Basel, Switzerland)
|June 27, 2024
概括
直接驱动的SCARA机器人由于动态合而面临永磁同步电机 (PMSM) 的过热问题. 这项研究预测了PMSM的寿命,确保了高端制造应用的可靠性.
科学领域:
- 机器人和自动化 机器人和自动化
- 机械工程 机械工程
- 电气工程 电气工程
背景情况:
- 直接驱动的SCARA机器人提供高精度,但受到动态合的影响.
- 这种合导致联合PMSM的非静止负荷,导致过热和寿命缩短.
- 准确的PMSM寿命预测对于高端制造至关重要.
研究的目的:
- 开发一种方法来预测直接驱动SCARA机器人的PMSM的运行寿命.
- 解决热应力对PMSM可靠性的影响.
- 确保PMSM的性能符合要求高的应用中的可靠性要求.
主要方法:
- 建立了SCARA机器人的动力学和动态模型.
- 为典型的运动任务计算PMSM扭矩曲线.
- 对绝缘材料进行加速降解试验,重点关注热应力.
- 使用加速降解模型制定了一个PMSM可靠性函数.
- 模拟PMSM温度场以确定最大工作温度.
- 通过使用最高温度作为参考来评估PMSM可靠性和预测寿命.
主要成果:
- 该研究成功预测了PMSM在特定操作条件下的寿命.
- 对于典型的点对点任务,PMSM显示预测寿命为102,623小时.
- 预测寿命满足了0.99.9的严格可靠性要求.
结论:
- 开发的方法为直接驱动的SCARA机器人中PMSM寿命预测提供了有效的方法.
- 热应激是影响PMSM可靠性和寿命的关键因素.
- 这些发现支持直接驱动的SCARA机器人在高端制造业的使用,通过确保组件的寿命.
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