Development and Practice of Carbon Fiber Reinforced Polymer Transmission Shaft

Zhang Yundong, Yang Dan, Tao Jun

（Technology Research Institute, Dongfeng Commercial Vehicle Technology Center, Shiyan 442001）

Abstract：through material performance evaluation and CAE analysis, carbon fiber composite shaft tube is crafted using winding molding process, the adhesion riveting technology realizes the reliable connection between the shaft tube and the metal universal joint. The developed carbon fiber composite transmission shaft combines the original two sections into one section, cancels a pair of metal universal joints, and the mass is reduced by more than 40%. The bench test results show that the static torsional strength, torsional fatigue life, critical speed and other performance indexes of the product fulfill the requirements of the national automotive industry standard QC/T 29082—2019 Specification and Bench Test Methods of Automobile Propeller Shaft Assembly. Key words: Carbon fiber composites, Transmission shaft, Winding method, Adhesion riveting connection