改写：如图b所示平衡器壳体周向上均匀分布有三个限制平衡球运动的滚道平衡球仅能沿着滚道在Z方向上运动。转子偏心固定在偏心盘上偏心盘设置在平衡器两端并关于转子中心对称。从图中可以看到两侧偏心相位相差180°这样在转子运行过程中可以形成不平衡的初始质径矩而不产生无法平衡的偏心力。转子两端支承均为各项同性支承分别在X、Y方向上设置相同刚度和阻尼系数的弹簧阻尼器。在转子高速旋转的情况下球体离心力将远大于重力

The balancer housing shown in Figure (b) is equipped with three roller tracks uniformly distributed around its circumference, which limit the motion of the balancing balls to the Z direction. The rotor eccentricity is fixed on the eccentric disk, which is symmetric about the rotor center and located at both ends of the balancer. As shown in the figure, the two eccentricities are 180° out of phase, so that an initial mass moment of imbalance can be formed during rotor operation without generating an unbalanced eccentric force. The supports at both ends of the rotor are isotropic and equipped with spring-dampers with the same stiffness and damping coefficients in the X and Y directions. Under high-speed rotation of the rotor, the centrifugal force on the balls will far exceed gravity, so the effect of the ball's weight can be ignored