Synchronous motor drives the outer cylinder to rotate to shear the fluid, and the cylinder passes the viscous force to the inner cylinder that connects to a circular shaft.
由同步电动机带动外圆筒旋转剪切流体，从而将粘性力传递给内筒，内筒与圆轴相连。
2
Angular stiffness and elastomer shear strain on maximum swinging Angle are important indexes in flexible joint design of solid rocket motor.