Numerical simulation and transonic wind-tunnel test for elastic thin-shell structure considering fluid–structure interaction  

作　　者：Yan Yunju Xi Zhuyou Zhang Shanzhi 

机构地区：[1]School of Mechanics, Civil Engineering and Architecture, Northwestern Polytechnical University [2]College of Science, Liaoning University of Technology

出　　处：《Chinese Journal of Aeronautics》2015年第1期141-151,共11页中国航空学报（英文版）

基　　金：supported by the National Natural Science Foundation of China(No.50875212);Specialized Research Fund(priority development area)for the Doctoral Program of Higher Education of China(No.20126102130004)

摘　　要：Aerodynamic force can lead to the strong structural vibration of flying aircraft at a high speed. This harmful vibration can bring damage or failure to the electronic equipment fixed in aircraft. It is necessary to predict the structural dynamic response in the design course. This paper presents a new numerical algorithm and scheme to solve the structural dynamics responses when considering fluid–structure interaction（FSI）. Numerical simulation for a free-flying structural model in transonic speed is completed. Results show that the small elastic deformation of the structure can greatly affect the FSI. The FSI vibration tests are carried out in a transonic speed windtunnel for checking numerical theory and algorithms, and the wind-tunnel test results well accord with that of the numerical simulation. This indicates that the presented numerical method can be applied to predicting the structural dynamics responses when containing the FSI.Aerodynamic force can lead to the strong structural vibration of flying aircraft at a high speed. This harmful vibration can bring damage or failure to the electronic equipment fixed in aircraft. It is necessary to predict the structural dynamic response in the design course. This paper presents a new numerical algorithm and scheme to solve the structural dynamics responses when considering fluid–structure interaction（FSI）. Numerical simulation for a free-flying structural model in transonic speed is completed. Results show that the small elastic deformation of the structure can greatly affect the FSI. The FSI vibration tests are carried out in a transonic speed windtunnel for checking numerical theory and algorithms, and the wind-tunnel test results well accord with that of the numerical simulation. This indicates that the presented numerical method can be applied to predicting the structural dynamics responses when containing the FSI.

关 键 词：considering tunnel checking aircraft meshes flying completed rigid acceleration harmful 

分 类 号：V211.74[航空宇航科学与技术—航空宇航推进理论与工程] TU33[建筑科学—结构工程]