微型电动货车车架分析
|
摘要
通过建立改装的微型电动货车车架有限元模型,计算弯曲和扭转强度及刚度,结果满足许用应力要求。之后进行自由模态分析,得到各阶模态频率。在模态分析的基础上作谐响应分析,其实验结果为:在33 Hz和75 Hz的激励频率下,可能会造成车架共振。该研究结果可为后续结构优化提供参考。
By establishing the finite element model of the modified microelectronic truck frame,the strength and stiffness of bending and torsion were calculated,and the results met the allowable stress requirements. Then the free modal analysis was carried out to obtain the modal frequency of each order. Based on the modal analysis,a harmonic response analysis was carried out. The experiments results show that under the excitation frequencies of 33 Hz and 75 Hz,the frame resonance may be caused. The results can provide references for subsequent structural optimization.
By establishing the finite element model of the modified microelectronic truck frame,the strength and stiffness of bending and torsion were calculated,and the results met the allowable stress requirements. Then the free modal analysis was carried out to obtain the modal frequency of each order. Based on the modal analysis,a harmonic response analysis was carried out. The experiments results show that under the excitation frequencies of 33 Hz and 75 Hz,the frame resonance may be caused. The results can provide references for subsequent structural optimization.
引文
[1]赵海军,王国华,田丽萍,等.基于轻量化改进的微型货车车身刚度验证[J].机械强度,2016(2):380-384.ZHAO H J,WANG G H,TIAN L P,et al.Model Stiffness Verification of Mini-truck Body Based on Lightweight Improvement[J].Journal of Mechanical Strength,2016(2):380-384.
[2]阮君.某轻卡车架结构性能分析及拓扑优化[D].合肥:合肥工业大学,2012.
[3]石亦平,周玉蓉.ABAQUS有限元分析实例详解[M].北京:机械工业出版社,2006.
[4]王卫东.轻型电动货车车架的有限元分析及优化[D].青岛:青岛大学,2014.
[5]赵帅,隰大帅,王世朝,等.FSAE赛车车架的强度和刚度分析[J].计算机辅助工程,2011,20(4):53-56.ZHAO S,XI D S,WANG S C,et al.Strength and Stiffness Analysis on FSAE Racing Car Frame[J].Computer Aided Engineering,2011,20(4):53-56.
[6]袁守利,林家辉.FSAE方程式赛车车架的设计与轻量化[J].郑州大学学报(工学版),2018(4):1-7.YUAN S L,LIN J H.FSAE Formula Frame Light Weight Design[J].Journal of Zhengzhou University(Engineering Science),2018(4):1-7.
[7]刘永花.微型纯电动车车架结构性能分析与优化[D].哈尔滨:哈尔滨工业大学,2010.
[8]赵慧慧.重型汽车车架的结构有限元分析与轻量化设计研究[D].南京:南京航空航天大学,2007.
[9]陈志勇,史文库,沈志宏,等.轻型客车车身车架整体结构有限元模态分析[J].振动与冲击,2010,29(10):244-246.CHEN Z Y,SHI W K,SHEN Z H,et al.Modal Analysis for Body and Frame of a Light Type Bus[J].Journal of Vibration and Shock,2010,29(10):244-246.
[10]翟正锟,崔俊杰,李红梅,等.鹅颈式半挂车车架有限元模态及谐响应分析[J].甘肃农业大学学报,2014(2):160-164.ZHAI Z K,CUI J J,LI H M,et al.Finite Element Modal and Harmonic Response Analysis of Gooseneck Type Semi-trailer Frame[J].Journal of Gansu Agricultural University,2014(2):160-164.
[2]阮君.某轻卡车架结构性能分析及拓扑优化[D].合肥:合肥工业大学,2012.
[3]石亦平,周玉蓉.ABAQUS有限元分析实例详解[M].北京:机械工业出版社,2006.
[4]王卫东.轻型电动货车车架的有限元分析及优化[D].青岛:青岛大学,2014.
[5]赵帅,隰大帅,王世朝,等.FSAE赛车车架的强度和刚度分析[J].计算机辅助工程,2011,20(4):53-56.ZHAO S,XI D S,WANG S C,et al.Strength and Stiffness Analysis on FSAE Racing Car Frame[J].Computer Aided Engineering,2011,20(4):53-56.
[6]袁守利,林家辉.FSAE方程式赛车车架的设计与轻量化[J].郑州大学学报(工学版),2018(4):1-7.YUAN S L,LIN J H.FSAE Formula Frame Light Weight Design[J].Journal of Zhengzhou University(Engineering Science),2018(4):1-7.
[7]刘永花.微型纯电动车车架结构性能分析与优化[D].哈尔滨:哈尔滨工业大学,2010.
[8]赵慧慧.重型汽车车架的结构有限元分析与轻量化设计研究[D].南京:南京航空航天大学,2007.
[9]陈志勇,史文库,沈志宏,等.轻型客车车身车架整体结构有限元模态分析[J].振动与冲击,2010,29(10):244-246.CHEN Z Y,SHI W K,SHEN Z H,et al.Modal Analysis for Body and Frame of a Light Type Bus[J].Journal of Vibration and Shock,2010,29(10):244-246.
[10]翟正锟,崔俊杰,李红梅,等.鹅颈式半挂车车架有限元模态及谐响应分析[J].甘肃农业大学学报,2014(2):160-164.ZHAI Z K,CUI J J,LI H M,et al.Finite Element Modal and Harmonic Response Analysis of Gooseneck Type Semi-trailer Frame[J].Journal of Gansu Agricultural University,2014(2):160-164.