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- Abstract: Three-dimension wheel-rail contact geometry is taken into account in studying the vibration between bridge and vehicle.The iteration method of wheel-rail creep force is proposed to improve the existed calculating method. 文摘:对车桥耦合振动研究中轮轨关系的线性方法进行了改进,提出考虑三维非线性轮轨接触几何,采用迭代法求解法向力和蠕滑系数。
- The chapter reports the test results of dynamical creep force, in which the influences exerted by high speeds and excitations on creep forces of W/R are taken into account. 从初步的试验结果分析可知,列车高速和轨道的一定频率范围内的激振对轮轨蠕滑力有一定的影响。速度越高,影响越大。当轮轨蠕滑力未达到饱和状态时,高速和振动对其影响较小,当蠕滑力达到饱和状态时,高速对其影响略大。
- The existing theoretical models of computing creep forces are all based on Hertz contact condition and the elastic-half-space assumption. 轮轨滚动接触蠕滑率/力理论是轮轨相互作用一系列问题研究的基础。
- Kalker's theory of three dimensional elastic bodies in rolling contact with non Hertzian patterns is employed to build the relationship, in the form of TPLR table, between the creepage and creep forces of a single wheelset moving on tangent rails. 应用Kalker的三维弹性体非赫弱滚动接触理论,将运动于直线轨道上的单轮对蠕滑率/力关系,建立在TPLR(非赫兹轮轨蠕滑力数表)中。
- That pervert again? He give me the creep. 那个色狼又出现了?他让我浑身起鸡皮疙瘩。
- It is vain to attempt to root out heresy by force. 试图用暴力消除异端邪说是徒劳的。
- Children learn to creep ere they can go. 孩子要走路,先得学爬行。
- Napoleon conquered by the force of an iron will. 拿破仑攻无不克靠的是坚强的意志。
- The mysterious sound made my flesh creep. 那神秘的声音吓得我毛骨悚然。
- The sight of the snake made her flesh creep. 她看到蛇就汗毛直竖。
- But they refused to bow to force. 但他们拒不向武力低头。
- That creep always quarrels with his neighbors. 那个讨厌鬼老跟邻居吵架。
- I had to use force in opening the door. 我不得不用力开那一扇门。
- The thought of that air crash makes the blood creep. 一想到那次空难就会心惊胆战。
- The invasion force was annihilated. 侵略军被消灭了。
- When do the new safety rules come into force? 新的安全规则何时生效?
- The destructive force of the storm is huge. 暴风雨的破坏力是巨大的。
- Many old rules are not in force any more. 许多旧的制度都已经失效。
- Beiyang Navy is the earliest naval force of China. 北洋水师是中国最早的海军部队。
- The farm labour force is running down steadily. 农场里的劳动力在不断减少。