僵硬是为铁路轨道的基本性能参数之一。有效、精确的僵硬测量为铁路工程的进一步的开发被看作了基础,因此有大理论、实际的意义。基于涵义的一篇摘要和轨道僵硬的测量,为轨道僵硬的测量方法的现状系统地被分析。轨道僵硬的停止测量能与传统的装载杰克的方法被执行,影响榔头方法, FWD (掉落的重量 deflectometer ) 方法,和轨道装载车辆方法。尽管这些方法能为铁路轨道的节在僵硬测量被采用,他们不是合乎需要的拥有到小范围和低效率。在里面最近 20 年,研究人员们建议了象失衡负担的激光排水量方法,偏转盆变丑率方法,和连续地测量轨道僵硬的怪癖刺激方法一样的许多方法;然而,这些方法有象差的精确性,低速度,和不够的数据分析一样的缺点。在这个工作,这些方法的优点和缺点被总结,并且优化建议被介绍。基于波浪传播机制和收获的颤动精力的原则,为特殊的节监视的僵硬和长期的僵硬的连续测量上的一个全面概念被建议。
Stiffness is one of the basic performance parameters for railway track. The efficient and accurate stiffness measurement has been considered as the foundation for further development of railway engineering, and therefore has great theoretical and practical significance. Based on a summary of the connotation and measurement of track stiffness, the state of the art of measurement methods for track stiffness was analyzed systematically. The standstill measurement of track stiffness can be performed with the traditional jack-loading method, impact hammer method, FWD (falling weight deflectometer) method, and track loading vehicle method. Although these methods can be adopted in stiffness measurement for a section of railway track, they are not desirable owning to small range and low efficiency. In the recent 20 years, researchers have proposed many methods like unbalancedloading laser displacement method, deflection basin deformation rate method, and eccentricity excitation method to continuously measure track stiffness; however, these methods have drawbacks like poor accuracy, low speed, and insufficient data analysis. In this work, the merits and demerits of these methods were summarized, and optimization suggestions were presented. Based on the wave transmission mechanism and principle of vibration energy harvesting, an overall conception on continuous measurement of stiffness and long-term stiffness monitoring for special sections was proposed.