摘要
以重载大扁平比轮胎为研究对象,基于弹性基础的柔性胎体模型为基础,分别从大扁平比胎侧曲梁的刚度建模、基于解析弹性基础的轮胎动力学建模两方面开展研究。建立考虑预紧力弦效应和结构弯曲效应的大扁平比胎侧曲梁解析刚度模型,并研究胎侧曲梁非均匀截面特性和几何、结构参数对解析刚度的影响规律。结果表明:①重载轮胎在0~180 Hz范围以结构周向弯曲振动为主,与基于弹性基础的柔性梁模型一致;②大扁平比胎侧曲梁的解析刚度与胎侧的几何、结构和充气压力参数直接相关;③轮胎充气压力影响柔性胎体梁的轴向预紧力和胎侧的弦刚度,进而影响轮胎弯曲振动特性。
The study investigates the analytical sidewall stiffness and analytical elastic foundation modeling of a radial tire with a large section ratio for a heavy load vehicle. A proposed tire model with a flexible belt on an elastic analytical stiffness foundation is investigated. the analytical multi-stiffness function of a large section ratio sidewall is derived by combining the membrane feature caused by inflation pressure and the structural deformation caused by sidewall curvature. The experimental and theoretical results indicate the following:①the bending characteristic of the belt within 0-180 Hz can be featured with the flexible belt on an elastic analytical stiffness foundation tire model.②the multi-stiffness function of the curved sidewall is related to the inflation pressure,structural curvature, and material properties.③the inflation pressure effects the pre-tension force of the belt and the pre-tension membrane feature of the sidewall.
作者
刘志浩
刘钇汛
高钦和
黄通
马栋
LIU Zhihao;LIU Yixun;GAO Qinhe;HUANG Tong;MA Dong(National Key Discipline Laboratory of Armament Launch Theory&Technology,Rocket Force Engineering University,Xi’an 710025)
出处
《机械工程学报》
EI
CAS
CSCD
北大核心
2021年第19期102-112,共11页
Journal of Mechanical Engineering
基金
国家自然科学基金(51905541)
陕西省自然科学基础研究计划(2020JQ487)
陕西省高校科协青年人才托举计划(20190412)资助项目。
关键词
重载子午胎
解析弹性基础
弹性基础柔性梁
非均匀截面
heavy loaded radial tire
analytical elastic foundation
flexible belt on an elastic analytical stiffness foundation
uniform cross-section
