무용접 경량화 자동차 조향 샤프트의 설계 변수 변화에 따른 구조 해석

Steering system is a one of major safe device in vehicle. Universal shaft adopted in steering system transmits steering torque between steering column and steering gear and protect the driver from being damaged by an accident. Conventionally, universal shaft is composed of two components, i.e. shaft and pipe. Two components are connected by a bellows or serration linkage. In this paper, structural analysis is achieved for a serration type non-weld forged universal joint. A simple universal shaft model is proposed to simplify the structural analysis process, the parameter study is performed to evaluate the effect on the structural analysis of the design parameters such as thickness of universal shaft, shape and length of serration.