CAJ | 학술논문

为明确回转支承轮齿间碰撞失效的动力学原因，以回转支承的外齿圈齿轮为研究对象，建立回转支承轮齿在制动停车下的冲击动力学理论计算模型，并运用显式动力学有限元数值分析方法，分析回转支承轮齿在不同回转速度下停车的动态响应特性，探讨回转速度对回转支承外圈轮齿的影响规律。结果表明冲击载荷是引起点蚀和断齿的主要原因；冲击响应随回转速度的增加而增加。
위명학회전지승륜치간팽당실효적동역학원인，이회전지승적외치권치륜위연구대상，건립회전지승륜치재제동정차하적충격동역학이론계산모형，병운용현식동역학유한원수치분석방법，분석회전지승륜치재불동회전속도하정차적동태향응특성，탐토회전속도대회전지승외권륜치적영향규률。결과표명충격재하시인기점식화단치적주요원인；충격향응수회전속도적증가이증가。
In order to figure out the origin of the gear failure of crane slewing bearing, taking the outer race gear as research object, an impact dynamics calculation model of the gear under the condition of revolve braking was established, the shock response properties of the gear in different rotary speed were analyzed , and its general rule was discussed by using the explicit dynamics FEA analysis method. The result shows that the impulsive force is the main reason of gear surface pitting and brokenness;the shock responses are more serious while the rotary speed is increasing.