CAJ | 학술논문

以锥面螺旋槽动压气体轴承为研究对象，建立气体轴承润滑分析数学模型，求解轴承的承载力和动特性系数。建立气体轴承的承载力、刚度与稳定性的优化数学模型，采用加权极小极大优化方法对优化数学模型进行求解，得到轴承的优化结构参数。结果表明：采用加权极小极大优化方法求解轴承的结构参数，不仅可以有效地解决各目标函数分量之间相互矛盾的问题，而且使其综合性能进一步提高；权系数的选择影响轴承的综合性能，合理地选择权系数，能够提高轴承的综合性能。
이추면라선조동압기체축승위연구대상，건립기체축승윤활분석수학모형，구해축승적승재력화동특성계수。건립기체축승적승재력、강도여은정성적우화수학모형，채용가권겁소겁대우화방법대우화수학모형진행구해，득도축승적우화결구삼수。결과표명：채용가권겁소겁대우화방법구해축승적결구삼수，불부가이유효지해결각목표함수분량지간상호모순적문제，이차사기종합성능진일보제고；권계수적선택영향축승적종합성능，합리지선택권계수，능구제고축승적종합성능。
By taking the research object of the conical spiral groove aerodynamic bearings,the lubrication analysis mathematical model of bearings was established to solve bearing capacity and dynamic characteristic coefficients.The optimized mathematical model was established for the bearings of capacity,rigidity and stability.The optimized structure parameters of the bearing were obtained by solving the optimized mathematical model with using of the weighted minimax method.The results show that the weighted minimax method can be used to optimize the bearing’s structural parameters,not only can effectively solve the contradictory problem of each ob-jective function,but also make the comprehensive performance further improved.The choice of weight coefficients affects the bearing’s comprehensive performance,and a reasonable choice of the weight coefficients can improve the bearing’s comprehensive performance.