Contact pressure distribution and support angle optimization of kiln tyre  

作　　者：肖友刚 潘迪夫 雷先明 

机构地区：[1]Key Laboratory of Track Traffic Safety of Ministry of Education, Central South University,Changsha 410075,China [2]School of Traffic and Transportation Engineering,Central South University, Changsha 410075,China [3]Department of Mechanical and Energy Engineering,Shaoyang University,Shaoyang 422004, China

出　　处：《Journal of Central South University of Technology》2006年第3期246-250,共5页中南工业大学学报（英文版）

基　　金：Project(2005038227) supported by the China Postdoctoral Science Foundation ;project(04JJ3050) supported by the Hu-nan Natural Science Foundation

摘　　要：According to the shearing force character and the deformation coordination condition of shell at the station of supports, the mathematical models to calculate contact angle and contact pressure distribution between tyre and shell were set up, the formulae of bending moment and bending stress of tyre were obtained. Taking the maximum of tyre fatigue life as the optimal objective, the optimization model of tyre support angle was built. The computational results show that when tyre support angle is 30°, tyre life is far less than that when tyre support angle is optimal, which is 35.6°, and it is unsuitable to stipulate tyre support angle to be 30° in traditional design. The larger the load, the less the nominal stress amplitude increment of tyre, the more favorable the tyre fatigue life when tyre support angle is optimal.According to the shearing force character and the deformation coordination condition of shell at the station of supports, the mathematical models to calculate contact angle and contact pressure distribution between tyre and shell were set up, the formulae of bending moment and bending stress of tyre were obtained. Taking the maximum of tyre fatigue life as the optimal objective, the optimization model of tyre support angle was built. The computational results show that when tyre support angle is 30°, tyre life is far less than that when tyre support angle is optimal, which is 35.6°, and it is unsuitable to stipulate tyre support angle to be 30° in traditional design. The larger the load, the less the nominal stress amplitude increment of tyre, the more favorable the tyre fatigue life when tyre support angle is optimal.

关 键 词：TYRE contact pressure support angle OPTIMIZATION 

分 类 号：TU31[建筑科学—结构工程]