模拟分析和实验研究的温度场的四行滚动轴承的滚动机在非统一的负载条件下的滚动轴承
Jianliang Sun1,2, Hesong Guo1,2, Xin Guo1,2
1School of Mechanical Engineering, Yanshan University, Qinhuangdao 066004, China.
Sensors (Basel, Switzerland)
|February 10, 2024
概括
这项研究模拟了轮机使用的四排圆柱形滚筒轴承 (FCRB) 中的温度分布. 调查结果显示,负载分布不均显著影响FCRB温度,这对于防止轴承故障至关重要.
科学领域:
- 机械工程 机械工程
- 部落学 (tribology) 是一个学科.
- 热分析 热分析
背景情况:
- 四排圆柱式滚筒轴承 (FCRB) 在轮机中至关重要,在恶劣的条件下运行.
- 在FCRB中高温可能导致过早故障,但有效的温度监测是具有挑战性的.
- 了解内部温度分布对于预测和防止轴承损坏至关重要.
研究的目的:
- 为轮机中的FCRB开发一个温度场计算模型.
- 调查FCRB的内部温度分布规律.
- 为了解决监测轮厂轴承温度的困难.
主要方法:
- 建立了使用切片方法对FCRB的机械分析模型.
- 开发了一种使用牛顿-拉普森方法 (NRM) 和有限元素方法 (FEM) 的机械计算模型.
- 使用FEM创建FCRB在均和不均负载条件下的温度场模型.
- 在轮机故障诊断试验台上进行实验验证.
主要成果:
- 与实验结果相比,开发的FCRB温度模型显示出不到10%的误差.
- 在FCRB中温度分布不均主要归因于负载分布不均.
- 轴温度分布与轴承柱的负载分布相关.
- 周围温度分布受到亚齐木斯角度的影响.
结论:
- 经过验证的温度模型提供了一种可靠的方法来分析FCRB的热行为.
- 不均的负载分布是导致轮机轴承热问题的一个关键因素.
- 对温度分布的洞察力有助于优化轴承性能和要求高的工业应用中的寿命.
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