Nonlinear Gust Response Analysis of Free Flexible Aircraft
نویسندگان
چکیده
منابع مشابه
Gust Response of Highly Flexible Aircraft
The paper presents a methodology for calculating the flight dynamic characteristics and gust response of highly flexible aircraft. The aeroelastic model is based on a geometricallyexact, nonlinear beam model coupled with large angle aerodynamic model. The gust response is calculated based on various gust models. It is shown that the calculated gust response spectrum as well as the RMS values ca...
متن کاملCFD-Based Gust Response Analysis of Free Elastic Aircraft
The study presents two novel approaches for gust response analysis of elastic free aircraft configuration using computational fluid dynamics (CFD) tools. The direct approach involves full aeroelastic dynamic simulation within a CFD run. The hybrid approach involves computing rigid sharp-edge gust responses in a CFD run, evaluating the gust input forces due to arbitrary gust profiles via convolu...
متن کاملNumerical Analyses of Discrete Gust Response for a Flexible Aircraft
Based on Navier-Stokes equations and structural and flight dynamic equations of motion, dynamic responses in vertical discrete gust flow perturbation are investigated for a supersonic transport model. A tightly coupled method was developed by the subiteration between aerodynamic equations and dynamic equations of motion. First, under the assumption of rigid-body and single freedom of motion in ...
متن کاملGust Response Sensitivity Characteristics of Very Flexible Aircraft
This paper studies the effect of varying structural stiffness parameters on the gust response of a very flexible aircraft (VFA). Twelve different aircraft models, as well as the baseline model, are subjected to a temporally and spatially distributed gust of varying durations. The open loop response of the models is examined as a function of different natural frequencies and frequency ratios. Li...
متن کاملPerformance Optimizing Gust Load Alleviation Control of Flexible Wing Aircraft
This paper details a control design for flexible wing aircraft that attempts to minimize the load induced by gust disturbance. Wing root bending moment is taken as an available measure of gust load and is used in a performance optimizing cost function to determine the load-alleviating control signal. However, both the disturbance signal and system matrices associated with wing root bending mome...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: International Journal of Intelligent Systems and Applications
سال: 2013
ISSN: 2074-904X,2074-9058
DOI: 10.5815/ijisa.2013.02.01