- rail temperature
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钢轨温度的英文
例句与用法
- This paper discusses aluminium heat welding principle , the application of aluminium heat welding technology in welding crane rails and infect of long rail temperature stress on buildings
摘要介绍了铝热焊原理及其焊长钢轨技术在焊接起重机轨道中的应用，并对长钢轨温度应力对建筑物的影响进行了深入分析。 - This article describes a way of special ultrasonic system which monitors thermal stress in seamless welded rails . this monitoring system is a non destructive testing system , which adopts avr mcu and high - precise time chip processing as the core of it , and adopts the critically refracted longitudinal wave as the object of measuring . my studying focuses on the theory of the monitoring system , which will be listed in this arctile : according to the snell theory , the theory of motivating of critically refracted longitudinal wave is described in details , and the finite element software is used to emulate the propagating course . the formulas of calculating the pts of swr are taken from the acoustoelasticity theory , and the calculating the parameters is introduced . according to assemble materials , three kinds of ways of monitoring the pts of swr using critically refracted longitudinal wave are described , which are measuring the sound - time in changeless distance , ultrasonic critical - angle refractomery and frequency spectrum , the first way of ways is used in this experiment system . the factors , which effect the monitoring system , are assaid in some degree based
本文的研究工作重点在无缝焊接钢轨温度应力测量系统的理论模块,包括根据snell原理,研究极限折射纵波的激发机理,并使用有限元软件ansys进行仿真;根据声弹性理论以及公式推导出计算无缝焊接钢轨中的温度应力的公式,并对其中参数的求解方法进行介绍;根据收集的资料,介绍了三种使用极限折射纵波测量无缝焊接钢轨温度应力的方法,即固定距离测量声时法、临界角折射法和频谱分析法,本实验系统使用的是第一种;根据实验经验以及相关资料,分析了影响极限折射纵波测量温度应力的几个因素,并提出了相应的解决方法;根据实验系统的需要,独立设计并加工出相关配套的实验设备,包括实验钢块、有机玻璃楔块、固定件、载荷外框装置等。 - Recently , train is running faster and faster , and considering the stability and security , seamless welded rails ( swr ) are used as the train orbits gradually . the temperature of the rails will vary with weather . so that the rails may release the energy due to the metal characteristic of expanding or contracting with temperature , there is some badly distortion in the swr , worsly occurring accidents on expanding orbits . the portrait thermal stress ( pts ) of the swr should be monitored in some parts regularly , as to avoid such accident
近年来,随着火车的提速造成的稳定和安全问题,轨道逐步转为采用无缝焊接钢轨,随着钢轨温度的变化,无缝钢轨可能会因为热胀或冷缩的金属特性并且在扣件阻力小而且路基较差的路段释放能量,可能会发生钢轨严重变形,更甚者会发生胀轨跑道等严重铁道事故,为了避免发生如此事故,有必要定期对钢轨的温度应力进行检测。 - For solving this problem , there are several ways of measuring the pts of the swr at present , such as demarcating path length , strain and stress , magnetic induction measurement and ultrasonic measurement . however , portable , universal and effective instruments or methods don ’ t appear up to now in china
为了解决这个问题,目前已经有了多种检测钢轨温度应力的方法,比如为标定轨长法、应变法、磁感应测量法和超声波测量法,但是在我国,便携、通用有效的检测仪器或方法还没有被研制出来。