炭纤维复合材料应用于汽车后背门的设计与优化
|
摘要
以某SUV纯电动汽车的后背门为研究对象,利用有限元优化设计方法,以T300牌号炭纤维复合材料代替钢对汽车后背门进行轻量化的重新设计,通过自由尺寸优化、尺寸优化和铺层次序优化三个阶段对后背门炭纤维复合材料的铺层进行优化,并对优化后的炭纤维后背门各项性能参数进行分析。结果表明,相对于原钢制后背门,优化后的炭纤维后背门的扭转刚度、弯曲刚度、侧向刚度、扭转模态频率和弯曲模态频率等性能指标均得到不同程度的提升,且质量由原来的16.70kg降至8.32kg,减重率达到50.2%,轻量化效果明显。
Taking the back door of a pure electric sports utility vehicle(SUV)as the research object and using finite-element optimization programming method,this paper carried out the lightweight redesign of the automobile back door by replacing the steel material with T300 carbon fiber composite material.The laminations of carbon fiber composite were optimized by three steps:free size optimization,size optimization and lamination sequence optimization.At the same time,the performance parameters of the optimized carbon fiber back door were analyzed.The results show that the torsional stiffness,bending stiffness,lateral stiffness,torsional modal frequency and bending modal frequency of the optimized carbon fiber back door are improved when compared with the original steel back door.The mass is reduced from 16.70 kg to 8.32 kg with the weight loss rate reaching 50.2%,and the lightweight effect is obvious.
Taking the back door of a pure electric sports utility vehicle(SUV)as the research object and using finite-element optimization programming method,this paper carried out the lightweight redesign of the automobile back door by replacing the steel material with T300 carbon fiber composite material.The laminations of carbon fiber composite were optimized by three steps:free size optimization,size optimization and lamination sequence optimization.At the same time,the performance parameters of the optimized carbon fiber back door were analyzed.The results show that the torsional stiffness,bending stiffness,lateral stiffness,torsional modal frequency and bending modal frequency of the optimized carbon fiber back door are improved when compared with the original steel back door.The mass is reduced from 16.70 kg to 8.32 kg with the weight loss rate reaching 50.2%,and the lightweight effect is obvious.
引文
[1] 徐建全,杨沿平,唐杰,等.纯电动汽车与燃油汽车轻量化效果的对比分析[J].汽车工程,2012,34(6):540-543.
[2] 倪绍勇,王金桥,王书,等.轻质材料在纯电动汽车轻量化中的应用[J].时代汽车,2016(7):55-57.
[3] Lee S L,Lee D C,Lee J I,et al.Integrated process for structural-topological configuration design of weight-reduced vehicle component[J].Finite Elements in Analysis and Design,2007,43(8):620-629.
[4] 洪清泉,赵康,张攀,等.OptiStruct &HyperStudy理论基础与工程应用[M].北京:机械工业出版社,2012.
[5] 韩鹏.碳纤维复合材料发动机罩优化设计研究[D].长春:吉林大学,2011.
[6] 张强.碳纤维复合材料汽车引擎盖的设计和工艺研究[D].武汉:武汉理工大学,2014.
[7] 吴方贺.碳纤维复合材料发动机罩结构设计与优化[D].长春:吉林大学,2017.
[8] 李欣然.某车型碳纤维发动机盖设计以及研究[D].长春:吉林大学,2017.
[9] 黄继峰.混杂纤维复合材料汽车引擎盖结构优化设计[D].常州:江苏理工学院,2018.
[10]余海燕,徐豪,周辰晓.大学生方程式赛车复合材料单体壳车身优化[J].同济大学学报:自然科学版,2016,44(11):1729-1734,1748.
[11]张太成.SUV车型后背门刚度设计[J].山东工业技术,2015(9):33-33.
[12]刘敬忠,廖君.汽车后背门刚度分析[J].现代零部件,2008(2):98-99.
[13]段端祥,赵晓昱.纯电动汽车碳纤维复合材料电池箱体的铺层设计研究[J].玻璃钢/复合材料,2018(6):83-88.
[2] 倪绍勇,王金桥,王书,等.轻质材料在纯电动汽车轻量化中的应用[J].时代汽车,2016(7):55-57.
[3] Lee S L,Lee D C,Lee J I,et al.Integrated process for structural-topological configuration design of weight-reduced vehicle component[J].Finite Elements in Analysis and Design,2007,43(8):620-629.
[4] 洪清泉,赵康,张攀,等.OptiStruct &HyperStudy理论基础与工程应用[M].北京:机械工业出版社,2012.
[5] 韩鹏.碳纤维复合材料发动机罩优化设计研究[D].长春:吉林大学,2011.
[6] 张强.碳纤维复合材料汽车引擎盖的设计和工艺研究[D].武汉:武汉理工大学,2014.
[7] 吴方贺.碳纤维复合材料发动机罩结构设计与优化[D].长春:吉林大学,2017.
[8] 李欣然.某车型碳纤维发动机盖设计以及研究[D].长春:吉林大学,2017.
[9] 黄继峰.混杂纤维复合材料汽车引擎盖结构优化设计[D].常州:江苏理工学院,2018.
[10]余海燕,徐豪,周辰晓.大学生方程式赛车复合材料单体壳车身优化[J].同济大学学报:自然科学版,2016,44(11):1729-1734,1748.
[11]张太成.SUV车型后背门刚度设计[J].山东工业技术,2015(9):33-33.
[12]刘敬忠,廖君.汽车后背门刚度分析[J].现代零部件,2008(2):98-99.
[13]段端祥,赵晓昱.纯电动汽车碳纤维复合材料电池箱体的铺层设计研究[J].玻璃钢/复合材料,2018(6):83-88.