Recent advance in nonlinear aeroelastic analysis and control of the aircraft |
| |
Authors: | Xiang Jinwu Yan Yongju Li Daochun |
| |
Institution: | School of Aeronautic Science and Engineering, Beihang University, Beijing 100191, China |
| |
Abstract: | A review on the recent advance in nonlinear aeroelasticity of the aircraft is presented in this paper. The nonlinear aeroelastic problems are divided into three types based on different research objects, namely the two dimensional airfoil, the wing, and the full aircraft. Different nonlinearities encountered in aeroelastic systems are discussed firstly, where the emphases is placed on new nonlinear model to describe tested nonlinear relationship. Research techniques, especially new theoretical methods and aeroelastic flutter control methods are investigated in detail. The route to chaos and the cause of chaotic motion of two-dimensional aeroelastic system are summarized. Various structural modeling methods for the high-aspect-ratio wing with geometric nonlinearity are discussed. Accordingly, aerodynamic modeling approaches have been developed for the aeroelastic modeling of nonlinear high-aspect-ratio wings. Nonlinear aeroelasticity about high-altitude longendurance (HALE) and fight aircrafts are studied separately. Finally, conclusions and the challenges of the development in nonlinear aeroelasticity are concluded. Nonlinear aeroelastic problems of morphing wing, energy harvesting, and flapping aircrafts are proposed as new directions in the future. |
| |
Keywords: | Chaos Flutter control Geometric nonlinearity LCO Nonlinear aeroelasticity |
本文献已被 CNKI 维普 ScienceDirect 等数据库收录! |
| 点击此处可从《中国航空学报》浏览原始摘要信息 |
| 点击此处可从《中国航空学报》下载免费的PDF全文 |
|