Objective To investigate the vibration of the locomotive cab seat floor at different speeds during driving,judge the comfort at different speeds,and reduce the possibility of occupational diseases of the locomotive driver caused by the vibration environment.In this paper,the substructure method is used to construct the multi-body dy-namics model of the locomotive,and the vibration acceleration of cab seat floor under different driving speed condi-tions is calculated.The comfort of cab seat floor at different speeds is determined by comfort standard.The random dynamic response at the cab seat floor of the wide-gauge electric locomotive is calculated for the 120 km/h driving speed,and the frequency range where the maximum peak value is located is determined.The analysis results show that with the increase of speed,the vertical vibration acceleration of the cab seat floor of the wide rail electric locomo-tive increases obviously,the comfort level changes from level 1 to level 3,and the comfort is obviously reduced.At the frequency points of 16.489 Hz and 18.815 Hz,the vibration displacement and vibration acceleration will peak.
关键词
宽轨电力机车/多体动力学/动态响应分析/舒适性判定
Key words
wide-gauge electric locomotive/multi-body dynamics/dynamic response analysis/comfort determination
维普
万方数据