Research and Design of Rubber Rotating Arm Joint Assembly for Rail Vehicles
The primary rubber rotating arm joint not only needs to transmit the longitudinal force of the vehi-cle during operation,but also provide appropriate lateral positioning stiffness to the primary suspension.There-fore,the performance of the rubber rotating arm joint directly affects the dynamic performance of the vehicle.During the design and manufacturing of the primary rubber rotating arm joint,the matching of radial stiffness and axial stiffness,or the stiffness ratio between them,is a crucial and challenging aspect.The structure of the rotating arm joint assembly described in this paper adopts an assembled design,with the radial stiffness being borne by the rubber spherical hinge joint and the lateral stiffness being borne by the rubber pad.This allows the radial stiffness and lateral stiffness of the entire rotating arm joint assembly to be designed and developed sepa-rately,without affecting each other.
Rail vehiclesRotating arm jointStiffnessRubber components
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