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- By simulating the track irregularities with trigonometric series method,the train-bridge coupling vibration equations are established based on the combined modal of train formation and the bridge. 利用三角级数法模拟了轨道的不平顺,采用列车编组和桥梁组合的模型,建立了车桥耦合振动方程。
- geometric vertical track irregularities 几何高低不平顺
- Numerical Simulation Methods of Railway Track Irregularities 轨道不平顺数值模拟方法
- The attendant smoothed away the slight irregularities in the running track. 跑道上稍稍有些不平,勤务人员把它弄平整了。
- Acording to the interaction between wheel and track, and considering the track irregularity, the dynamic equilibrium equations of the VBS are derived. 根据轮轨间的相互作用,并考虑轨道的不平顺,推导了车-桥系统的动力方程。
- The study indicates that a combination of track irregularity and high-speed running of the train increases rapidly the response amplitude. 研究表明,较差的轨道不平顺状态及列车高速运行的组合情况下,轨道振动响应幅值将迅速增大。
- Based on the stable character proving of the specimen,we used FFT methods to evaluate the whole specimen space and used MATLAB soft to get the PSD of track irregularity. 基于轨道高低不平顺样本的总体平均,对所得到的谱密度进行频率平滑,并与我国一级铁路干线的谱密度曲线进行了对比分析。
- Given the same random phase, the simulation of the sixth grade and fifth grade track irregularity PSD of U.S. railways shows the level of difference between them obviously. 该方法还可对美国轨道线路五级谱和六级谱进行数值模拟,在随机相位一致的情况下,直观地反映出不同轨道线路谱等级在时域波形上的不平顺差异水平。
- Unfortunately, the roller rig con not any directly simulate the track random i uts, because up to now there are not any standard track irregularity ectral in China. 另外,由于机车车辆系统,包括轮轨关系,实际上是非线性的,而机车车辆非线性蛇行失稳临界速度有别于线性系统,它与线路的激扰有关。
- Our pilotless rocket enters the track of the earth. 我们把一个无人驾驶的火箭送入了地球的轨道里。
- THEORY ANALYSIS AND TEST RESEARCH OF CHINESE MAIN TRACK IRREGULARITIES PSD 我国干线轨道谱理论分析及试验研究
- She tested the whole class on irregular verbs. 她对全班学生进行不规则动词测验。
- Her front teeth were irregular in formation. 她的门牙排列不整齐。
- This rough track will soon be a metalled road. 这条坑坑洼洼的路不久就要铺上碎石了。
- These procedures are highly irregular. 这些程序是很不合乎规则的。
- I'm trying to track down my old Aunt Maud. 我正试图寻找到我那年迈的婶婶莫德。
- The trains from here are irregular. 从这里开出的火车是无规律的。
- The cyclist went at full sail along the track. 自行车手沿着跑道全速前进。
- The judge ordered a retrial because of irregularities. 因初审不合规则,法官下令复审。
- Bill has a feeling he is on a fast track. 比尔感觉到他正快速迈向成功。