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Tuesday, May 5, 2020 | History

4 edition of A general interface method for aeroelastic analysis of aircraft found in the catalog.

A general interface method for aeroelastic analysis of aircraft

A general interface method for aeroelastic analysis of aircraft

  • 299 Want to read
  • 31 Currently reading

Published by National Aeronautics and Space Administration, National Technical Information Service, distributor in [Washington, DC, Springfield, Va .
Written in English

    Subjects:
  • Aeroelasticity,
  • Loads (Forces),
  • Mathematical models,
  • Finite element method,
  • Transformations (Mathematics),
  • Computational grids,
  • Structural engineering

  • Edition Notes

    Statementby T. Tzong ... [et al.].
    SeriesNASA contractor report -- NASA CR-206331.
    ContributionsTzong, T., United States. National Aeronautics and Space Administration.
    The Physical Object
    FormatMicroform
    Pagination1 v.
    ID Numbers
    Open LibraryOL17822426M
    OCLC/WorldCa38867140

    In this work, the static aeroelastic behavior of flexible aircraft with a high aspect ratio wing undergoing large static deformations has been investigated analytically and numerically. Toward this end, a nonlinear structural model based on a simple one-dimensional nonlinear beam theory is used. With NX NASTRAN’s Aeroelasticity solution, these points can easily and accurately be solved for, whether on a wing or an entire aircraft. Gust Response. In addition to trim analysis, sometimes it is necessary to consider how an aircraft will behave under a .

    General Solutions 44 Boundary Conditions 45 Example Solutions for Mode Shapes and Frequencies 49 Approximate Solution Techniques 59 The Ritz Method 60 Galerkin’s Method 66 Epilogue 70 3 Static Aeroelasticity 80 Wind Tunnel Models 80 Wall-Mounted Model 80 Sting-Mounted Model Premium Membership Required to view Document/Book Authors: Jan R. Wright University of Manchester and J2W Consulting Ltd, UK Jonathan E. Cooper University of Liverpool, UK Pages Open: Aircraft Aeroelasticity and Loads Introduction. Introduction. Aeroelasticity is the study of the interaction of aerodynamic, elastic and inertia forces.

    The drive for aircraft efficiency and minimum environmental impact is requiring the aerospace industry to generate technologically innovative and highly integrated aircraft concepts. This has changed the approach towards conceptual design and highlighted the need for modular low fidelity aircraft simulation models that not only capture conventional flight dynamics but also provide insight into Cited by: 3. This book presents methods for the analysis of rotorcraft-pilot couplings, discusses typical phenomena, and suggests ways to predict and reduce adverse coupling events at the design stage. The book is divided into three parts; the first offers an introduction to a “modern” approach to the modelingBrand: Springer International Publishing.


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A general interface method for aeroelastic analysis of aircraft Download PDF EPUB FB2

Interface method, which is suitable for both loads and performance evaluation of the entire aircraft as well as aircraft components and conserves local and global loads, is necessary.

Several interface methods have been developed for aeroelastic analysis []. Get this from a library. A general interface method for aeroelastic analysis of aircraft. [T Tzong; United States.

National Aeronautics and Space Administration.;]. AIRCRAFT AEROELASTIC DESIGN AND ANALYSIS An introduction to fundamental concepts of static and dynamic aeroelasticity - with simple idealized models and mathematics to describe the essential features of aeroelastic problems.

These notes are intended for the use of Purdue University students enrolled in AAE Flutter is a dynamic aeroelastic instability characterized by sustained oscillation of structure arising from interaction between those three forces acting on the body.

The present work aims to study the flutter behavior on three-dimensional subsonic aircraft wings, using a computationally efficient Size: 2MB. Aeroelastic Dynamic Analysis of a Full F Configuration for Various Flight Conditions. Philippe Geuzaine, Applications of the unsteady vortex-lattice method in aircraft aeroelasticity and flight dynamics.

Progress in Aerospace Sciences, Vol. Cited by: Chapter1: FundamentalsofAeroelasticAnalysis • IntroductiontoAeroelasticAnalysisandDesign • AerodynamicDataInputandGeneration • AerodynamicTheories. Additionally, aeroelastic optimisation methods enable the potential of structural adjustments to, for instance, decrease mass and increase flight performance.

In general, a new aircraft design concept or a part or system may cause new aeroelastic problems. A typical example is the whirl flutter phenomenon that is the subject of this book.

on three-dimensional subsonic aircraft wings, using a computationally e cient method. For that, a computational aeroelasticity design framework is created using a custom devel-oped panel method for the uid ow analysis and a commercial software for the structural analysis.

A validation of the ow solver is made using wind tunnel data, while the struc-File Size: 3MB. Flutter is a dynamic aeroelastic instability characterized by sustained oscillation of structure arising from interaction between those three forces acting on the body.

The present work aims to study the utter behavior on three-dimensional subsonic aircraft wings, using a computationally e cient method. Nonlinear Aeroelastic Analysis of Bending-Torsion Wings Subjected to a Transverse Follower Force 2 March | Journal of Computational and Nonlinear Dynamics, Vol.

6, No. 3 Stability and Open-Loop Dynamics of Very Flexible Aircraft Including Free-Wake EffectsCited by: process, to develop methods for simplification of aircraft structural and aerodynamic models to make it possible to perform the load analysis in a fast and integrated way during conceptual and preliminary design phases, then to perform a load analysis of an ultralight aircraft as a case study for the demonstration of theFile Size: 2MB.

The GSE/modal analysis method is applied to an aircraft analysis and design problem which involves computationally expensive CFD and CSM codes. High-fidelity static aeroelastic analysis is performed for a supersonic transport aircraft at Machg, cruise conditions, at an angle-of-attack, α, of °.Cited by: 6.

Doublet Lattice Method- For the aeroelastic analysis, MSC/NASTRAN involves the doublet-lattice method for the subsonic aerodynamic calculation.

The doublet-lattice method is used for the calculation of aerodynamic quantities in subsonic flow. This theory is a linearized potential-flow theory which is presented in references 6, 7, and 8. An aeroelastic stability analysis is presented for high-aspect ratio composite wings. The structural model is based on an asymptotically correct cross- sectional formulation and a nonlinear geometric ex- act beam analysis, both derivable from 3-D elastic- ity.

Reimer L., Braun C., Wellmer G., Behr M., Ballmann J. () Development of a Modular Method for Computational Aero-structural Analysis of Aircraft. In: Schröder W. (eds) Summary of Flow Modulation and Fluid-Structure Interaction Findings.

Notes on Numerical Fluid Mechanics and Multidisciplinary Design, vol Springer, Berlin, HeidelbergCited by: The basic design criterion includes the minimum weight configuration that results in very flexible structures, which leads to various types of structural interaction problems like flutter, divergence etc.

Hence every aerospace vehicle should be analysed for its aeroelastic instabilities. Cooper [16], are describingvarious loads analysis methods for almost all load types that have to be considered stores with another mass and center of gravity that the in aircraft design.

Niu presents in his book [13] on airframe stress analysis basic loads analysis besides methods, the interfaces and the interdependencies of theFile Size: 2MB. The application of morphing wing devices can bring several benefits in terms of aircraft performance, as the current literature shows.

Within the scope of Clean Sky 2 AirGreen 2 European project, the authors provided a safety-driven design of an adaptive winglet, through the examination of potential hazards resulting from operational faults, such as actuation chain jamming or links structural Author: Maria Chiara Noviello, Ignazio Dimino, Antonio Concilio, Francesco Amoroso, Rosario Pecora.

High-fidelity Aeroelastic Analysis of Very Flexible Aircraft Benjamin P. Hallissy∗, Carlos E.S. Cesnik † University of Michigan, Ann Arbor, MI This paper describes the development and capabilities of a high-fidelity aeroelastic sim-ulation tool for very flexible aircraft (HiFi-VFA) within a Multi-Disciplinary Computing Environment.

The aeroelastic analysis is needed only once to get the aerostructural performance of an aircraft in conventional aerostructural optimization.

However, the above method involves several times of static aeroelastic analysis to get the aerostructural performance of an by: 1. combine the high-order panel method with the modal method for conducting aeroelastic analysis in the early phase of aircraft design.

The method for static aeroelastic analysis based on the high-order panel method and modal method has some application abroad, however, its domestic application is relatively less.

Literature [11] proposed the.References 1. W. Wang, X. Zhu, Z. Zhou and J. Duan, A method for nonlinear aeroelasticity trim and stability analysis of very flexible aircraft based on co-rotational theory, J. Fluids Struct. 62 () – Crossref, ISI, Google Scholar; 2. T.

Theodorsen, General theory of aerodynamic instability and the mechanism of flutter, NACA Report No. ().Cited by: 2.aeroelastic characteristics of the clean wing and the wing/engine system are studied. The system is modeled based on the clean wing by considering effects of inertia force, gravity and thrust of the engine.

Equation for static aeroelastic responses analysis The general equation for static aeroelastic responses analysis is[6] kQumu QuP qq.