‘Noise Mapping’ of a Railway Network: Validation and Use of a System Based on Measurement of Axlebox Vibration
‘Noise Mapping’ of a Railway Network: Validation and Use of a System Based on Measurement of Axlebox Vibration
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铁路网络的“噪声测绘”：基于轴箱振动测量的系统的验证和使用
DOI：
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
M. Saxon
中科院分区：
文献类型：
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作者：
E. Bongini;S. Grassie;M. Saxon
在法国铁路系统上进行了一系列试验，以检验基于轴箱加速度计的商用系统是否提供了一种可行的方法来测量对轮轨滚动噪声有重要意义的铁路头粗糙度幅度。测试的HSRCA系统提供了可重复的测量和良好的声学粗糙度估计，前提是测量速度与系统校准时相似，轨迹表的动态行为与系统校准时相似。
A series of tests have been undertaken on the French railway system to examine whether a commercially available system based on axlebox accelerometers offers a viable method of measuring amplitudes of railhead roughness that are significant for wheel/rail rolling noise. The HSRCA system that was tested gives repeatable measurements and a good estimate of acoustic roughness provided the measuring speed is similar to that at which the system is calibrated and the dynamic behaviour of the trackform is similar to that on which the system is calibrated.