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水润滑轴承磨损寿命预测校正试验载荷的磁力模拟研究

DOI: 10.13334/j.0258-8013.pcsee.2014.17.012, PP. 2836-2842

Keywords: 屏蔽电机核主泵,磁力模拟,水润滑轴承,磨损寿命,预测校正

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Abstract:

为给屏蔽电机核主泵水润滑半尺寸轴承磨损寿命试验提供载荷环境,研制了一套轴向载荷磁力模拟装置,并研究该装置单独的磁力特性和磁液耦合下接口特性或服役性能。以磨损质量为寿命评估的关键参数,构建了核主泵水润滑轴承磨损寿命预测-校正试验方案,分析了该试验方案载荷需求。采用独立公理的设计思想,得到了静态加载和动态激振功能独立的电磁加载系统结构方案。对该方案单独的磁力特性进行仿真分析和试验验证,采用转子-轴承-加载装置系统动力学模型分析磁液复合特性。研究结果表明:该装置单独工作时可实现静态加载10t、脉冲以及谐波动态激振功能,供电电流相同时磁液复合作用下装置的磁力服役值小于非复合下的磁力值,磁液耦合效应应该作为电磁加载装置设计的重要考虑因素。

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