摘要
以车体关键部位加速度为分析对象,结合动力学理论设计适当的轨道激励,模拟车辆的垂向振动,并进行动响应计算,对关键部位进行加速度分析,探讨垂向振动过程中车体关键部位的加速度随轨道激励频率的变化关系,结果表明车体关键部位的加速度对2.0～3.0 Hz的频率比较敏感。
With accelerations of the key parts of vehicle body for analysis object, based on the theory of dynamics, appropriate exitation of tracks was designed to simulate vertical vibration of vehicles and dynamic response analysis was carried out. Accelerations of key parts were analyzed to study the relationship between vertical vibration accelerations of key parts and track exitation frequencies. Results showed that the accelerations of vehicle key parts are more sensitive to 2.0 - 3.0 Hz frequencies.
出处
《铁道标准设计》
北大核心
2011年第10期8-11,共4页
Railway Standard Design
基金
铁道部科技研究开发计划课题(2008J007-C)
关键词
加速度分析
动响应
货车车体
轨道不平顺
Acceleration analysis
Dynamic response
Vehicle body
Rail irregularities
