| 1. | Development forecast model of track irregularity based on probability distribution
基于概率分布的轨道不平顺发展统计预测 |
| 2. | Measuring the characteristics of track irregularity has been taken into account in foreign countries
轨道不平顺统计特征的测定，在国外早已引起重视。 |
| 3. | Secondly , germany high - speed spectrums with weak disturbance are adopted to simulate the stochastic rail irregularities
其次，基于欧洲低干谱，模拟了轨道不平顺样本。 |
| 4. | A system that can monitor the track state by means of ccd ( charge coupled device ) array and infrared led ( light - emitting diode ) is designed in the thesis , which named track state dynamic inspection device
本论文设计的是利用线阵ccd (电荷耦合器件)和红外线光源对轨道不平顺参数进行检测的“轨道状态动态检测装置” 。 |
| 5. | In this paper , based on track irregularity spectrum and time delay between axles , control laws of railway vehicle secondary active suspension are designed according to optimal control theory , and simulated on a vertical railway vehicle model
摘要针对铁道车辆二系主动悬挂，考虑了轨道不平顺谱及轮轴时延的输入；依据最优控制理论，设计了整车的主动悬挂控制规律，并在整车垂向动力学模型上进行了仿真分析。 |
| 6. | The design of the system ' s software includes the theoretical analysis of the model of track irregularity , the theory for restoring the original vvaveform of the railway track irregularity , the math model of the ground processing software and the arithmetic to distinguish the track irregularity types
装置软件部分包括轨道不平顺模型的理论分析、轨道真实不平顺的复原理论、地面处理软件的数学模型和轨道不平顺类型的判别算法。 |
| 7. | Adopting the track irregularity to the actuator sources of system , then simulate the track irregularity and check the validity of simulation , at the same time compute the dynamical response and evaluate the statistic rules of wan zhou yangtze river bridge in the condition of high speed vehicles
采用轨道不平顺作为了系统的激励源，模拟出了轨道不平顺年并检验了模拟的正确性，评价了万州长江大桥在车辆高速行驶状态下的动力响应和统计规律。 |
| 8. | Using vogel ' s wear index as the rail side wear index , the paper analyzes the side wear variations of rail head when the parameters in the wheel / rail system vary , analyzes the influences of track irregularity on rail uneven wear on gauge corner emphatically . this paper analyzes the rail side wear dates measured by track division of shan hai guan since 1990 , then gains the relationship between side wear and traffic volume and sums up the characteristics and regularities in the formation and development of side wear . in the end , some measures for regarding the side wear on curves are put forward
从轮轨摩擦、轮轨接触几何关系、轮轨接触应力和轮轨蠕滑等方面对钢轨侧面磨耗机理进行了探讨，从轨道几何参数、机车车辆运营条件等方面对钢轨侧面磨耗的影响因素进行了重点分析和总结；应用轮轨系统动力学，建立了轮轨空间耦合振动时变模型，采用vogel侧磨指数作为钢轨侧磨指标，系统分析了轮轨参数变化的情况下，轨头侧面磨耗的变化规律，重点分析了轨道不平顺对钢轨不均匀侧磨的影响；对山海关工务段1990年以后现场测得的曲线钢轨侧磨数据进行了分析，通过拟合得到了钢轨侧磨量与运量的关系曲线，并总结了曲线上股钢轨侧面磨耗的特征和发生、发展规律；最后提出了一些减缓曲线钢轨侧面磨耗的措施。 |
| 9. | First , the domestic status quo of track inspection and the overseas development of track inspection device are introduced in the thesis . based on the introduction , three schemes to monitor the track irregularity by means o f photoelectric inspection technology are put fonvard in the thesis : using photosensitive diode , using ccd array wfth computer , using ccd array with single chip computer
论文首先介绍了国内轨道检测的状况和国内外轨道检测设备的发展，分析了各种设备的优劣，并在此基础上提出了采用光电检测技术对轨道不平顺参数进行检测的三套方案：光敏二极管阵列方式、线阵ccd结合工业控制计算机方式和线阵ccd结合单片机方式。 |
| 10. | Results show that profit gained by incorporating the time delay between axles in the control laws designed with track spectrum information decreases rapidly with the enhancement of running speed , comparatively including track spectrum is more important in control law design of railway vehicle active suspension
分析表明，依据轨道不平顺谱以及轮轴时延能实现最佳的控制性能；但随着速度的提高，其相对于仅依靠轨道谱信息而设计最优控制规律的收益大幅下降；相对而言，铁道车辆依据轨道谱信息设计主动悬挂控制规律非常重要。 |
