【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 c
【机 构】
：
Key Laboratory of Track Traffic Safety of Ministry of Education,School of Traffic and Transportation
论文部分内容阅读
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.
其他文献
目的 比较促性腺激素释放激素激动剂(GnRH-a)联合地屈孕酮和戊酸雌二醇(反向添加疗法)及单用GnRH-a对子宫内膜异位症(内异症)患者生殖激素水平、低雌激素症状、生活质量及骨
本文尝试结合人类学注重考察人类文化的宗教信仰和仪式行为的方法,从巫觋宗教与民俗艺术的本原关系切入,经过梳理巫教在民俗艺术的形态和功能中的诸多观念反映,从中整合出生
本文比较了保安语积石山方言中的两个程度副词mo(O)l(n)和g(y)的用法,认为二者的区别在于是否蕴舍比较义.
对自行设计开发的大型穿浪双体船WPC96(1800 t级排水量)的阻力性能进行了理论预报与实验分析研究.将Michell积分推广为一般双体船兴波阻力计算公式,利用Michell积分的复积分
采用一维设计与三维数值模拟分析相结合的方法,对某动车组轴流冷却风机进行气动设计,并分析研究了等环量指数对轴流冷却风机气动性能的影响.根据一维设计的几何参数进行三维
The theories of diagnosing nonlinear analog circuits by means of the transient response testing are studied. Wavelet analysis is made to extract the transient r
In order to estimate vehicular queue length at signalized intersections accurately and overcome the shortcomings and restrictions of existing studies especially
捷联惯导误差标定中考虑的误差主要包括零偏误差、刻度系数误差、安装误差。标定的误差参数越多,难度越大,并且火箭炮在发射标定阶段无线运动,只能进行两自由度角运动,导致误
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7
The using of the iron to extract reduced iron with TFe≥ 69.5% Al2O3+SiO2＜0.3% was studied. Preparation of reduced iron powder in this experimental research can