关键词: 车辆工程, 新非自然平衡轮廓, 结构设计, 轮胎磨损, 滚动阻力

Abstract:

The contours of radial truck tire 12.00R20 and 385/55 R22.5 were redesigned by using the Sakai Hideo's nonequilibrium contour theory, Frank's nonequilibrium contour theory and the optimized nonequilibrium contour theory, which were based on the current nonequilibrium contour design theories of radial tire. Tire wear, rolling resistance and grip performances of radial tires with designed contours were analyzed comprehensively through finite element analysis. The results show that, Sakai Hideo's design theory suits for the tires with small aspect ratio; Frank's design theory suits for the tires with large aspect ratio; the optimized nonequilibrium tire contour will enhance the tire performances such as tire wear, rolling resistance and so on. Tire inner contour holds great influences on the performances of the tires, especially on tire rolling resistance. The optimized nonequilibrium contour provides a guidance to reduce the tire rolling resistance. The optimized nonequilibrium tire contour design can breakthrough the target conflicts in tire performance.

Key words: vehicle engineering, new nonequilibrium contour, structural design, tire wear, rolling resistance