仓储管理电动车在不同工况下的模态分析

摘要

Taking the self-propelled elevator as a reference ,we build the finite element model of a storage management car body .To the problem of body deformation of the electric car in operation ,we do the modal analysis of electric vehical body by ANSYS soft-ware .Through the analysis ,we find the electric car body will occur resonance when the frequency reaches 4 Hz .The condition of the road is well ,so the frequency of exciting force from the road is less than 4 Hz .Therefore ,this electric car will not occur resonance in normal running condition .%以自行式升降机作参考，建立仓储管理电动车车身的有限元模型。针对电动车在升降及行驶过程中出现的振动变形问题，利用有限元法对电动车车身进行了模态分析。由分析结果可知：不同工况下，车身发生共振的频率为4 Hz ，由于该电动车作业路面情况良好，产生的激振力均在4 Hz以下，由此可得出该电动车在正常作业情况下不会发生共振，保证了电动车运行过程中的安全性和稳定性。