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Overview and outlook on railway track stiffness measurement
  • ISSN号:1000-4750
  • 期刊名称:《工程力学》
  • 时间:0
  • 分类:U211.5[交通运输工程—道路与铁道工程] V241.5[航空宇航科学与技术—飞行器设计]
  • 作者机构:[1]Key Laboratory of High-speed Railway Engineering, Ministry of Education, Southwest Jiaotong University, Chengdu 610031, China, [2]School of Civil Engineering, Southwest Jiaotong University Chengdu 610031, China
  • 相关基金:This research was supported by the project (51425804) of the National Science Fund for Distinguished Young Scholars of China and the National Natural Science Foundation of China (NSFC) under grants U1234201, U1334203, and 51378439.
中文摘要:

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。

英文摘要:

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.

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期刊信息
  • 《工程力学》
  • 中国科技核心期刊
  • 主管单位:中国科学技术协会
  • 主办单位:中国力学学会
  • 主编:袁驷
  • 地址:北京清华大学新水利馆114号
  • 邮编:100084
  • 邮箱:gclxbjb@tsinghuae.du.cn
  • 电话:010-62788648
  • 国际标准刊号:ISSN:1000-4750
  • 国内统一刊号:ISSN:11-2595/O3
  • 邮发代号:82-862
  • 获奖情况:
  • 1999年获在物理、力学类刊物中影响因子位居第二(0...
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  • 被引量:32789