CAJ | 학술논문

针对转盘轴承的薄壁大型环状结构特性，应用ABAQUS软件建立内圈沟道局部损伤有限元分析模型，基于显式动力学有限元算法，对转盘轴承的运转过程进行数值模拟仿真，获得了不同尺寸缺陷下的振动响应脉冲波形，探索了损伤尺寸对转盘轴承的影响机制。研究结果表明：有限元仿真分析可以准确地反映出转盘轴承沟道表面的局部损伤，在相同条件下，缺陷长度的增加对转盘轴承运转的影响最大，而高度的影响可以忽略不计；分析结果对转盘轴承沟道损伤监测系统构建具有重要指导意义。
침대전반축승적박벽대형배상결구특성，응용ABAQUS연건건립내권구도국부손상유한원분석모형，기우현식동역학유한원산법，대전반축승적운전과정진행수치모의방진，획득료불동척촌결함하적진동향응맥충파형，탐색료손상척촌대전반축승적영향궤제。연구결과표명：유한원방진분석가이준학지반영출전반축승구도표면적국부손상，재상동조건하，결함장도적증가대전반축승운전적영향최대，이고도적영향가이홀략불계；분석결과대전반축승구도손상감측계통구건구유중요지도의의。
Aiming at thin-wall and large size circular structure characteristics of slewing bearings,a finite element a-nalysis model for local defect on inner ring raceway is built by using ABAQUS.The operating process for slewing bear-ing is numerically simulated based on explicit dynamic finite element algorithm.The pulse waveforms of vibration re-sponses are obtained under different defect sizes,and the influencing mechanism of damage sizes on slewing bearing is explored.The research results show that the finite element simulation analysis can accurately reflect local damage on raceway surface of slewing bearing.The increase of defect length has the largest effect on operation of slewing bearing and the effect of height is negligible under the same conditions.The analytical results have important guiding signifi-cance in developing raceway damage monitoring system for slewing bearing.