摘要
以线路实测的轨道不平顺线路谱为依据,计算得到试验台的驱动位移谱,基于转向架试验台实现对轨道不平顺线路谱的复现。提出了一种通过测量运动平台多点位移解耦计算平台三个自由度运动的方法来验证试验台对轨道不平顺的复现效果,根据解耦方法分别推导出了轨道不平顺的水平不平顺、高低不平顺和方向不平顺的参数公式,通过4个激光位移传感器实时测量了运动平台4个位置的位移量,并根据测量数据计算出了运动平台实时的横向位移、垂向位移和侧滚角度。试验结果证明,所提出的验证方法可行,试验台可以准确地复现轨道不平顺线路谱,提供理想的线路模拟试验条件。
The test driving displacement spectrum is calculated based on the real measured railway track irregularity spectrum. Based on the recurrence of the railway track irregularity spectrum on a bogie test rig, a method is proposed to verify the test bench reproduction effect of the track irregularity. In this method, the decoupling calculation of the 3D movements of the platform is realized through the multi-point measurement of the moving platform. According to the decoupling method, parameter formulas of the horizontal, vertical and directional track irregularities were derived. The displacements of four points of the moving platform were real-time measured by four laser sensors, and based on the measured data, the real-time lateral and vertical displacements and roll angle were calculated. Experimental results show that the proposed verification method is feasible, and the railway track irregularity spectrum can be accurately reproduced on the test rig, which can provide ideal test conditions for line simulation test.
出处
《吉林大学学报（工学版）》
EI
CAS
CSCD
北大核心
2017年第2期400-407,共8页
Journal of Jilin University:Engineering and Technology Edition
基金
国家自然科学基金项目(51205164)
吉林大学青年科技创新基金项目(450060507032)
关键词
铁路运输
轨道不平顺
转向架试验台
线路谱复现
轨道车辆
railway transportation
railway track irregularity
bogie test bench
recurrence of line spectrum
railway vehicles
