CAJ | 학술논문

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。
위급병폐전궤핵주빙수윤활반척촌축승마손수명시험제공재하배경，연제료일투축향재하자력모의장치，병연구해장치단독적자력특성화자액우합하접구특성혹복역성능。이마손질량위수명평고적관건삼수，구건료핵주빙수윤활축승마손수명예측-교정시험방안，분석료해시험방안재하수구。채용독립공리적설계사상，득도료정태가재화동태격진공능독립적전자가재계통결구방안。대해방안단독적자력특성진행방진분석화시험험증，채용전자-축승-가재장치계통동역학모형분석자액복합특성。연구결과표명：해장치단독공작시가실현정태가재10t、맥충이급해파동태격진공능，공전전류상동시자액복합작용하장치적자력복역치소우비복합하적자력치，자액우합효응응해작위전자가재장치설계적중요고필인소。
In order to provide a load environment for the wear life test of half-size water-lubricated bearing in the nuclear primary pump with canned motor, an axial load magnetic simulation device was developed, and its single properties, interface properties or service performance under the magnetic-liquid composite were researched. Taking wear mass as the key parameter of life assessment, a prediction-correction test scheme of water-lubricated bearing wear life for primary pump was purposed and its load requirements was analyzed. A structure scheme of electromagnetic loading system whose static loading and dynamic excitation were independent was obtained by the independent axiomatic design ideas. Simulation and experimental verification of its magnetic characteristics were conducted, and the magnetic-liquid composite properties were analyzed based on the rotor-bearing-loading system dynamics model.The results show that the device can realize static loading 10t, impulse and harmonic exciting. When the current is the same, the magnetic force under the magnetic-liquid composite is less than the single magnetic force without composite. Therefore, the magnetic-fluid coupling effect should be considered as a key factor for the design of electromagnetic loading device.