利用CATIA和Ansys Workbench软件建立了某型水下航行器电池舱段的实体模型和有限元模型，根据《CB 1235-1993鱼雷环境条件和试验方法》，对电池舱段进行动力学分析。首先研究了结构正常工作条件下电池舱段工作时内部锂/亚硫酰氯电池发热及外部海水温度不同产生的温度场对结构强度的影响。其次分析了不同贮存、运输温度环境条件下，电池舱段结构抵抗脉冲冲击载荷的能力。结果表明，随着海水温度升高，电池舱段内外温差减小，电池舱段受到加速度载荷时的等效应力及变形也随之减小。在脉冲冲击载荷作用下，温度对结构强度及刚度的影响呈非线性。在20℃时，结构的等效应力及变形最小。随着温度正向及负向的变化，等效应力及变形都将增大。
Using CATIA and Ansys Workbench software, the physical model and finite element model of the battery compartment of a certain underwater vehicle are established. According to the environmental conditions and test methods of CB 1235-1993, the dynamic analysis of the battery compartment was carried out. Firstly, the influence of temperature field caused by internal Li/SOCL2 battery heating and external seawater temperature on structural strength was studied under normal working conditions of the battery compartment. Secondly, the ability of the battery compartment to resist impulse impact load is analyzed in different storage and transportation temperature environments. The results show that the equivalent stress and deformation of the battery compartment are reduced with the increase of seawater temperature and the decrease of temperature difference between the inside and outside of the battery compartment. The influence of temperature on the strength and stiffness of the battery compartment is nonlinearity under impulsive impact load. At 20℃, the equivalent stress and deformation of the structure is minimal. With the positive and negative change of temperature, the equivalent stress and deformation will increase.
2018,40(7): 47-51 收稿日期：2017-09-08
DOI：10.3404/j.issn.1672-7649.2018.07.009
分类号：L1661.43
作者简介：张大千(1965-),男,副教授,研究方向为航空产品有限元分析
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