摘要
挂机结构是机载飞行器的关键承载结构,采用两种方法对挂机结构进行强度分析。首先采用惯性释放方法,该方法可准确模拟挂飞边界条件但无法据此开展地面静力试验;因此又根据机载飞行器的结构特点提出了边界约束方法,通过对比两种方法的分析结果,找出既能满足分析精度要求又适合开展地面静力试验的边界条件;最后据此开展地面静力试验,进一步验证了挂机结构对挂飞载荷的适应性。
The suspension structure is the key bearing structure of airborne missiles. In this paper, two methods are used to analyze the strength of the suspension structure. First, the inertia release method is used. This method can accurately simulate the boundary conditions of the hang up flight but the ground static test can't be carried out accordingly. So the boundary constraint method is put forward according to the structural characteristics of airborne missile. By comparing the numerical results of these two methods, it is found out that the boundary conditions that can meet the analytical accuracy requirements and are suitable for carrying out ground static test. Finally, ground static test was carried out accordingly. Which further validates the adaptability of the suspension structure to the flying load.
引文
[1] 杨乐,杨德敏.基于计算机实验设计方法的金属壳体吊耳部位结构优化设计[J].强度与环境,2015,42(5):35-43.YANG Le,YANG DeMin.The Lifting Lug Structure Optimization of Metal Case Based on CODE[J].Structure and Environment engineering,2015,42(5):35-43(In Chinese).
[2] 宋磊,金玲,聂青,等.机载飞行器翻倒式吊耳设计与试验[J].机械设计与研究,2016,32(6):69-72.SONG Lei,JIN Ling,NIE Qing,et al.Design and test on the turnover suspension lug of airborne aircraft[J].Machine Design and Research,2016,32(6):69-72(In Chinese).
[3] 路志敏,刘翀,赵永忠,等.固体火箭发动机壳体的随机有限元分析[J].机械强度,2010,32(6):1026-1030.LU ZhiMin,LIU Chong,ZHAO YongZhong,et al.Random finite element analysis of solid rocket moter vessel[J].Journal of Mechanical Strength,2010,32(6):1026-1030 (In Chinese).
[4] 郑州飞机装备有限公司.GJB 1063A-2008.机载悬挂装置试验方法[S].北京:国防科学技术工业委员会,2008:4-5.Zhengzhou Aircraft Equipment Company.GJB 1063A-2008.Test Method for Airborne Suspension[S].Bejing:National Defense Science and Technology Industry Committee,2008:4-5(In Chinese).
[5] 庄茁,由小川,廖剑晖,等.基于ABAQUS的有限元分析和应用[M].第1版.北京:清华大学出版社,2009:93-96.ZHUANG Zhuo,YOU XiaoChuan,LIAO JianHui,et al.Finite element analysis and application based on ABAQUS[M].First edition.Beijing:Tsinghua University Press,2009:93-96(In Chinese).
[6] 石亦平,周玉蓉.Abaqus有限元分析实例详解[M].第1版.北京:机械工业出版社,2011:52-55.SHI YiPing,ZHOU YuRong.ABAQUS Finite Element Analysis Example[M].First edition.Beijing:Mechanical Industry Press,2011:52-55(In Chinese).