| 高速铁道车辆天棚阻尼悬挂系统时滞稳定性分析 |
| Stability Analysis of Sky hook Damping Suspension System With Time Delay for High speed Railway Vehicle |
| 投稿时间：2012-08-21 |
| 中文关键词:时滞 稳定性 天棚阻尼 动车组 |
| 英文关键词:time delay stabilty Sky hook damping EMUS |
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| 中文摘要: |
| 建立包含一系阻尼在内的铁道车辆垂向1/4模型，分析了时滞对系统动态特性影响。根据临界失稳分析理论，计算出了时速300 km级高速动车组的失稳临界时滞大小，分析了不同时滞区域的稳定性状态。根据系统传递特性,分析了时滞对系统频响特性的影响。对确定性激励和轨道不平顺随机激励作用下的车体振动情况进行仿真分析。频响分析和仿真结果证明了系统失稳临界时滞理论分析的正确性。 |
| 英文摘要: |
| A 1/4 car model of railway vehicle with primary suspension is built. The influence of time delay on system dynamic performances is analyzed. According to the theory of critical instability, the value of the critical time delay for high speed EMU at 300 km/h is computed and the stability in different time delay area is researched. According to the transfer properties of systems, the effects of time delay on frequency response are analyzed. Simulation and analysis of car body under deterministic excitation and track irregularity random excitation is conducted. The results of frequency response analysis show that the calculating method of the critical time delay of system instability based on time delay theory is valid. |
| 廖英英,刘永强,杨绍普,魏红梅.高速铁道车辆天棚阻尼悬挂系统时滞稳定性分析[J].石家庄铁道大学学报(自然科学版),2012,(4):66-71. |
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