工况参数对船用斜齿轮动态性能的影响

以某型船用单级斜齿轮传动为研究对象,针对其工况复杂多变的特点,基于Abaqus/Explicit显式动态分析方法,建立了斜齿轮副有限元模型.对额定工况下齿根动应力进行了仿真,重点讨论了负载扭矩和主动轮转速等工况参数对齿根最大动应力的影响.结果表明：斜齿轮齿根最大动应力随着扭矩和转速的增大而接近线性增加,且不同齿面的齿根动应力的增加速率不同.研究结果对船用斜齿轮副的优化设计具有一定参考价值.

Impact of working condition parameters on dynamic performance of marine helical gears

Pertaining to a specific marine helical gear transmission, the relevant working conditions are complicated. Based on the AbaqusTM explicit dynamic analysis method, a finite element model is estab- lished. By simulating the dynamic tooth-root stresses under rated working conditions, the impact of such working condition parameters as loading torques and driving gear rotary speeds upon the maximum tooth- root stress are postulated. Accordingly, it is found that the maximum dynamic stress from helical gear tooth-root increases in an approximately-linear trend. In addition, the tooth-root stresses of different tooth- surfaces increase with different speed rates. Therefore, this approach sets a reference to optimal design on marine helical gear-pair.