铺层参数对复合材料电池箱盖模态和稳定性的影响  

Effect of Layer Parameters on Modal and Stability of Composite Battery Cover

作　　者：刘传波[1] 陈傲杰 王稳 肖洒 LIU Chuanbo;CHEN Aojie;WANG Wen;XIAO Sa(School of Mechanical and Electronic Engineering,Wuhan University of Technology,Wuhan Hubei 430070,China;Hunan Sanhe Automotive New Materials Co.,Ltd.,Changsha Hunan 410323,China)

机构地区：[1]武汉理工大学机电工程学院,湖北武汉430070 [2]湖南三合汽车新材料有限公司,湖南长沙410323

出　　处：《汽车零部件》2020年第2期1-5,共5页Automobile Parts

摘　　要：为满足汽车在运动过程中电池箱壳体振动小和噪声低的要求,现以某款新能源汽车电池箱盖的玻璃纤维复合材料铺层设计为研究对象,通过有限元分析软件对电池箱盖纤维铺层方案进行模态及强度分析,探究复合材料铺层结构对电池箱盖固有频率和稳定性的影响。分析结果表明:当铺层厚度和铺层顺序保持不变时,增加±45°纤维铺层比例,电池箱盖的固有频率和稳定性能显著提高;保持铺层厚度和铺层比例不变时,铺层顺序对电池箱盖模态的影响效果不明显,但对最大应力值有很大的影响,0°纤维铺层角度在最外侧电池箱盖受到的最大应力远低于±45°;随着纤维铺层厚度的增加,电池箱盖的固有频率和稳定性能不断提高。In order to meet the requirements of low vibration and low noise of the battery box in the course of automobile movement, taking the glass fiber composite lamination design of the battery box cover of a new energy automobile as the research object, the modal and strength analyses of the fiber lamination scheme of the battery box cover were carried out through the finite element analysis software.The influence of the composite lamination structure on the natural frequency and stability of tank cover was explored. The results show that the natural frequency and stability of the battery cover can be greatly improved by increasing fibers proportion on ±45°direction when the thickness and sequence of the layers remain unchanged. When the thickness and proportion of the layers remain unchanged, the effect of the order of layers on the mode of the battery cover is small, but it has a great influence on the maximum stress value.The maximum stress on the outer battery cover of 0° fiber ply angle is much lower than that of ±45°. With the increase of ply thickness, the natural frequency and stability of the battery cover increase continuously.

关 键 词：电池箱盖 玻璃纤维复合材料 铺层设计 模态分析 稳定性 

分 类 号：U465.6[一般工业技术—材料科学与工程] U469.7[机械工程—车辆工程]