【摘要】 从机械振动理论出发，用可靠性设计中的联结方程，得出了其在常用工况下按传动轴的临界转速进行可靠性设计的公式．并以实例对传动轴按上述准则进行可靠性设计，结果传动轴的重量比原设计减少了４３６％，可靠性达到０９９９９８７６以上．更多还原

【Abstract】 The paper starts from the theory of mechanical vibration, with tie equipment in the reliability design, and obtains a formula of design on critical speed in common use situation.From the practical example of reliability design for auto-driveshaft norms mentioned above, the result shows the reduction of weight of the auto-driveshaft is 43 6% more than that of the original design and the reliability reaches over 0 999 987 6.更多还原