Methods of configuration test and deformation analysis for large airship  

作　　者：ZHAI Yutao SHEN Yongzheng YAN Xiangbin TAN Huifeng 

机构地区：[1]School of Management,Harbin Institute of Technology,Harbin 150001,China [2]State Key Laboratory of Special Environmental Composite Materials Technology,Harbin Institute of Technology,Harbin 150001,China [3]Beijing Institute of Telemetry Technology,China Aerospace Science and Technology Corporation,Beijing 100071,China

出　　处：《Journal of Systems Engineering and Electronics》2022年第4期951-960,共10页系统工程与电子技术（英文版）

基　　金：supported by the Foundation for Innovative Research Groups of the National Natural Science Foundation of China (11421091)。

摘　　要：In recent years, high-altitude aerostats have been increasingly developed in the direction of multi-functionality and large size. Due to the large size and the high flexibility, new challenges for large aerostats have appeared in the configuration test and the deformation analysis. The methods of the configuration test and the deformation analysis for large airship have been researched and discussed. A tested method of the configuration,named internal scanning, is established to quickly obtain the spatial information of all surfaces for the large airship by the three-dimensional(3D) laser scanning technology. By using the surface wrap method, the configuration parameters of the large airship are calculated. According to the test data of the configuration, the structural dimensions such as the distances between the characteristic sections are measured. The method of the deformation analysis for the airship contains the algorithm of nonuniform rational B-splines(NURBS) and the finite element(FE)method. The algorithm of NURBS is used to obtain the reconfiguration model of the large airship. The seams are considered and the seam areas are divided. The FE model of the middle part of the large airship is established. The distributions of the stress and the strain for the large airship are obtained by the FE method. The position of the larger deformation for the airship is found.

关 键 词：large airship deformation analysis three-dimensional(3D)laser scanning technology non-uniform rational B-splines(NURBS) system engineering 

分 类 号：V274[航空宇航科学与技术—飞行器设计] V214