特种车辆用复合材料矩形梁结构仿真模型修正方法研究  

Research on Simulation Model Correction Method for Composite Rectangular Beam Structure for Special Vehicles

作　　者：杨馨 周彤 刘兵[2] 李艳丽 张洋洋[2] Zhou Tong;Yang Xin;Liu Bing

机构地区：[1]北京宇航系统工程研究所,100076 [2]北京航天发射技术研究所

出　　处：《工程机械》2024年第8期55-61,I0013,共8页Construction Machinery and Equipment

摘　　要：复合材料具有高比强度、耐腐蚀、抗疲劳等特点,广泛应用于特种车辆大型承载结构及航天器典型部件。复合材料的承载性能往往依托有限元方法进行数值仿真和评价,但由于材料的各项异性导致数值仿真离散型较大,精度有待提高。为精确评估特种车辆用复合材料矩形梁结构的承载性能,提出一种基于NLPQL优化算法的仿真模型修正方法,并开展试验验证。研究结果表明,该模型修正方法能够有效提高仿真模型精度,复合材料矩形梁的数值模拟结果与样条试验数据吻合良好。研究工作为复合材料矩形梁结构的承载性能评价和结构设计优化提供了技术支撑。Composites have the characteristics of high specific strength,corrosion resistance and fatigue resistance,and are widely used in large load-bearing structures of special vehicles and typical components of spacecrafts.The load-bearing performance of composites often relies on the finite element method for numerical simulation and evaluation,but due to the anisotropy of each material,the numerical simulation has a large discreteness,and the accuracy needs to be improved.To accurately evaluate the load-bearing performance of composite rectangular beam structure for special vehicles,a simulation model correction method based on NLPQL optimization algorithm is proposed and experimentally verified.The results show that the model correction method can effectively improve the simulation model accuracy,and the numerical simulation results of the composite rectangular beams are in good agreement with the sample test data.The research provides technical support for the evaluation of load-bearing performance and optimization of structural design of composite rectangular beam structures.

关 键 词：矩形梁结构 复合材料 NLPQL优化算法 仿真模型修正 

分 类 号：TJ81[兵器科学与技术—武器系统与运用工程]