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根据最小势能原理,推导了考虑波纹壳体弹性变形的阻力矩方程,得出了波纹管式关节阻力矩与转角的关系,所得到的结果与力平衡法的结果吻合的很好,验证了该文方法的有效性。然后根据该文推导出的关系式,对关节几何参数和壳体的弹性变形对阻力矩大小的影响进行了分析。分析结果表明,在半径不变的情况下,增加波纹弧长或减小波纹间距可降低关节的阻力矩,在一定转角范围内波纹壳体的弹性变形对关节阻力矩的影响很小。
According to the principle of minimum potential energy, the equation of resistance moment taking into account the elastic deformation of corrugated shell is deduced, and the relationship between the torque and the angle of corrugated tubular joint is obtained. The obtained results are in good agreement with the results of force balance method. The effectiveness of the method. Then according to the relation derived from the paper, the influence of joint geometry parameters and shell elastic deformation on the drag torque is analyzed. The analysis results show that increasing the corrugation arc length or decreasing the corrugation distance can reduce the joint's resistance moment under the condition of constant radius. The elastic deformation of the corrugated shell has a small influence on the joint resistance moment within a certain rotation angle range.