基于刚柔耦合的 HXN3司机室隔振系统多维度频率响应分析

摘要

针对HXN3型内燃机车出现的司机室振动较大问题，展开司机室隔振结构隔振性能分析。通过进行HXN3机车司机室振动试验，明确柴油机－发电机组作为振源的激励特性和振动传递特性。建立将司机室视为弹性体的多维度隔振结构动力学模型，计算该多维度（multi-dimension）隔振结构关键位置的频率响应函数。进一步分析 HXN3机车司机室隔振结构对于柴油机－发电机组高频激励的隔离效果。%Here,the vibration-isolation performance analysis of a HXN3 diesel locomotive cab isolation system was performed to solve the cab excessive vibration problem.A test was conducted to investigate the vibration of the HXN3 diesel locomotivecab.A multi-dimension cab vibration-isolation dynamic model was established considering the cab as an elastic body,and its vibration frequency response functions at several key positions were calculated.The vibration-isolation effects of the cab isolation system under the high-frequency excitations of the locomotive diesel-generator group were further analyzed.