种轨道交通轮轨组合粗糙度识别方法

• Format: Patent
• Language: Chinese
• Published: 26.12.2017
• Subjects: CALCULATING; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; PHYSICS; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE

本发明涉及种轨道交通轮轨组合粗糙度识别方法，具体为：将加速度传感器粘贴在钢轨底部，记录列车通过时钢轨的竖向振动加速度，并根据测点振动随列车行走距离的衰减率识别出扣件刚度和阻尼参数；确定车辆参数等，计算钢轨导纳、车轮导纳以及轮轨接触导纳；利用计算出的扣件参数和各部分导纳，根据轮轨位移协调条件计算单位粗糙度下的轮轨力及单个车轮引起的钢轨振动加速度，并按能量叠加原理计算单节编组列车激起的钢轨空间平均振动加速度；最后，根据列车通过时段钢轨的时空平均振动加速度与实际轮轨组合粗糙度的线性关系，用实测钢轨振动加速度频谱除以单位粗糙度下钢轨振动加速度理论频谱，即得到实际轮轨组合粗糙度谱。 The invention relates to a wheel-rail combination roughness identification method for rail traffic. The wheel-rail combination roughness identification method specifically comprises the following steps: sticking an accelerator sensor to the bottom of a steel rail, recording the vertical vibration acceleration of the steel rail when a train goes through the steel rail, and identifying the rigidity and damping parameter of a fastener along with the attenuation rate of the traveled distance of the train according to the vibration of a measure point; determining vehicle parameters and the like, and calculating the steel rail admittance, wheel admittance and wheel rail contact admittance; by the calculated parameters of the faste