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众所周知,在运输车辆中,动力是由发动机经变速箱,再由传动轴来驱动车桥使车辆运行。因此,传动轴是一个重要的传力构件。在实际工作中,传动轴发生损坏,断裂的现象时有发生,常需重新设计一传动轴,这种设计应保证强度、稳定性及工艺性等诸方面的要求,才能延长其使用寿命。一般常规设计,只是根据传递的转矩来建立传动轴的强度条件,这显然是不全面的。因此,综合各种因素,采用优化设计就显得十分必要了,它可以达到材料省、重量轻、寿命长的目的。这一点在高速回转机械、甚至在宇航中更为重要。
As we all know, in the transport vehicles, power from the engine through the gearbox, and then by the drive shaft to drive the vehicle to run the bridge. Therefore, the drive shaft is an important force transmission member. In practice, the transmission shaft damage occurs, the phenomenon of fracture occurs from time to time, often need to re-design a drive shaft, this design should ensure that the strength, stability and craftsmanship and other requirements, in order to extend its service life. General conventional design, but based on the transmission torque to establish the strength of the drive shaft, which is obviously not comprehensive. Therefore, the combination of various factors, the use of optimized design is very necessary, it can achieve the material province, light weight, long life. This is a high-speed slewing machine, even more important in aerospace.