航空薄壁结构静强度分析模型校核方法研究  

Study on Verification Method of Static Strength Analysis Model for Aviation Thin-Walled Structure

作　　者：张国凡[1] 艾森[1] 聂小华[1] Zhang Guofan;Ai Sen;Nie Xiaohua(Aircraft Strength Research Institute of China,Xi′an710065,Shaanxi,China)

机构地区：[1]中国飞机强度研究所,陕西西安710065

出　　处：《工程与试验》2022年第4期52-54,共3页Engineering and Test

摘　　要：针对航空薄壁结构静强度分析模型的误差估计问题,提出了一种基于Richardson外推法和多网格组合方案来进行后验误差估计的方法。针对典型薄壁结构形成了不同分析任务的考核指标,形成了工程可用的模型校核方法与流程,并利用壁板等工程结构进行了方法的应用与验证。应用结果表明,建立的基于后验误差估计的静强度模型验证方法切实可行,具有工程实用性。Aiming at the problem of error estimation of static strength analysis model for aviation thin-walled structure,a posterior error estimation method based on Richardson extrapolation method and multi grid combination scheme is proposed.The evaluation index for different analysis tasks is summarized for typical thin-walled structures,and the verification method and flow available in engineering are formed.The methods are applied and verified by using engineering structures such as panels.The application results show that the verification method of static strength analysis model based on posterior error estimation is feasible and practical.

关 键 词：薄壁结构 静强度 校核 后验误差估计 

分 类 号：V216.1[航空宇航科学与技术—航空宇航推进理论与工程]