Quartus engineering incorporated was founded in 1997 to provide quality advanced engineering services. Active aeroelastic wing technology is a design approach that enables a higher aspect ratio, more aerodynamically efficient wing. With nx nastrans aeroelasticity solution, these points can easily and accurately be solved for, whether on a wing or an entire aircraft. Aeroelastic analysis of a flexible wing wind tunnel model. Pete seiler and the performance adaptive aeroelastic wing. Different technologies, in addition to the traditional ailerons, have been included in structural design of joinedwing sensorcraft, in order to improve their performance. Versatile graphic output capability allows for viewing of all facets of the aeroelastic analysis and design process using a host of commercially available graphic software packages. Pdf user and programer documentation for the widowac programs is given. It gets its speed and accuracy from our novel numerical algorithm that. Its wings were swept forward, contrarily to common airplanes. Quartus specializes in the design and analysis of mechanical systems using computeraided. The combination of cray hardware and ansys software solves these demanding problems efficiently and delivers fast results. The software has been released to various organizations with applications that include cfdbased aeroelastic analyses and the rapid modeling of highfidelity dynamic stability derivatives. Multidisciplinary optimization can be used to determine optimal wing design that can achieve a.
Widowac may be used for the design of minimum mass wing structures. Aeroelasticity in general considers inertial, elastic and aerodynamic forces acting on a structure. The aeroelastic analysis of the wing plate is completed using the mscnastran software. Active aeroelastic wing control laws were developed to flex the wing, and flight instrumentation was used to accurately measure the aeroelastic performance of the wing planform. Pdf aeroelastic wing planform design optimization of a. Pdf aeroelastic modelling of morphing aircraft wings. The static aeroelastic torsion divergence problem is the main obstacle to bring forward swept wing into massive applications. Curvilinear fiber optimization tools for aeroelastic. Flight software was then modified for flight testing, and the aircraft first flew in modified form on november 15, 2002. Flutter is a dynamic aeroelastic instability characterized by sustained oscillation of structure arising from interaction between those. Compared with a wing of rigid hinged aileron, the morphing wing. The purpose of this paper was to develop a computer program for the preliminary design of wings and empennages at any flight regime for. Aeroelastic concepts in civil aircraft wings design.
The x53 active aeroelastic wing aaw development program is a completed american. Using an aeroelastic analysis tool allowed for all. Friswell3 university of bristol, bristol bs8 1tr, uk an approach to design an aircraft wing with. The x53 active aeroelastic wing aaw development program is a completed american research project that was undertaken jointly by the air force research laboratory afrl, boeing phantom works and. This article presents an investigation into the concept and optimal design of a lightweight seamless aeroelastic wing saw structure for small air vehicles. Aeroelastic twolevel optimization for preliminary design of wing. The programs are applicable to studies of steady state aeroelastic effects on stability characteristics of airplanes, but results are limited in validity to wings of typical fighter airplanes with a. Active aeroelastic wing aaw technology represents a new design approach for aircraft wing structures. Therefore, aeroelastic optimization design is a necessary way to increase design efficiency in every phase of aircraft design. Aeroelastic scaling for rotarywing aircraft with applications. An approach to induced drag reduction with experimental evaluation. Aeroelastic tailoring of a composite forwardswept wing using a novel hybrid pattern search method journal of aerospace engineering, vol. The structural model considers nonclassical effects such as transverse shear.
The aerodynamics toolkit is a compilation of lite versions of our most popular. A framework for the aeroelastic analysis and design of generic morphing wings. In traditional aircraft design, control surfaces are generally regarded as. Aeroelastic wing planform design optimization of a. This design was considered a tremendous increase in the. Synthesis tools for aeroelastic tailoring have been developed to varying degrees of modeling fidelity. Nonlinear aeroelastic modeling and analysis of fully. Consequently, a static aeroelastic analysis method7 was used in this work to compute aerodynamic performance. The x53 active aeroelastic wing aaw development program is a completed american research project that was undertaken jointly by the air force research laboratory afrl, boeing. The surface grids for the canard, wing, and tail have been parameterized as shown in fig. This thesis summarizes investigations performed within design, analy.
Zaero, integrates all essential disciplines required for advanced industrial aeroelastic design and analysis. Pdf windowac wing design optimization with aeroelastic. Aeroelastic concepts for flexible wing structures 3 abstract this thesis summarizes investigations performed within design, analysis and experimental evaluation of exible aircraft structures. Boeing x53 active aeroelastic wing military wiki fandom. Aeroelastic tailoring method of towsteered composite wing. This design was considered a tremendous increase in the aerodynamic efficiency of the wing, as this particular shape produces the lowest drag coefficient achievable and an improvement in the wings stall response. This is the most unique and challenging aspect of the xhale concept as it. Static aeroelastic analysis is carried out for the beamlike wing model, using a. Existing structural design methods are strained even further when new technologies.
International workshop on robust modeling, design and analysis. The technology uses static aeroelastic deformations as a net benefit during maneuvering. Linear parameter varying control for the x53 active. Boeing x53 active aeroelastic wing wikimili, the free. Useful for analysis and control design of flutter or gustload alleviation, ezase is. Active aeroelastic wing application on a forward swept. A wing model for wind tunnel test is optimized subject to displacement, torsion, flutter, and strength constraints. The literature emphasizes the following four tools as the most utilized.
A framework for adaptive aeroelastic wing shaping control nhan nguyen, ph. Optimized offdesign performance of flexible wings with. In this paper, some major aeroelastic considerations in aircraft. Optimal design of an aeroelastic wing structure with.
Nasas unsteady aerodynamic and aeroelastic reduced. In comparison to the conventional wing design the torsional stiffness is. In addition to trim analysis, sometimes it is necessary. As the wingbox is divided into five rib bays and each of the rib bays consists of four panels with seven design variables, the total number of design variables is 140. A flight research program for active aeroelastic wing. Some examples include updates to monitor points and splines. A flight research program for active aeroelastic wing technology. Development of wing structural weight equation for active. Aeroelastic tailoring theory, practice, and promise. A new twopronged approach for developing refined aeroelastic scaling laws for rotarywing aeroelastic and aeroservoelastic applications is presented. Use of msc nastran for aeroelastic analysis youtube. Aeroelastic optimization design for highaspectratio.
The method employs complex method and a 3d navierstokes code to determine the optimum. A multidisciplinary design study considering the impact of active aeroelastic wing aaw technology on the structural wing weight of a lightweight fighter concept is presented. The x53 active aeroelastic wing aaw development program is a completed research project that was undertaken jointly by the air force research laboratory afrl, boeing phantom. The nx nastran aeroelasticity software solution enables you to analyze models in which structures are immersed in fluid flows, which as a result effect the stiffness of the structure itself. Zaero is a professional software engineering tool that can efficiently solve your most demanding industrial aeroelastic and aeroservoelastic problems. Based on the studying results of aeroelastic wing characteristics, the controller should be designed depending on the flight speed. Aeroelastic cosimulation flight loads toolkit by martijn renooij, stirling dynamics, uk a part of the expleo group of companies, stirling dynamics is a fastgrowing, advanced engineering company that. Aeroelastic design of a joinedwing uav 20090150 aim of this study is the development of an integrated methodology able to support the structural design of an uav. A framework for adaptive aeroelastic wing shaping control. Aeroelastic optimization design for highaspectratio wings with.
The nonlinear aeroelastic analysis, as a key part in optimization design, is integrated into the whole optimization process to obtain the static equilibrium configuration and flutter speed. Aeroelastic analysis of a flexible wing wind tunnel model with variable camber continuous trailing edge flap design nhan nguyen nasa ames research center, moffett field, ca 94035 eric ting. Aeroelastic definition of aeroelastic by the free dictionary. Active aeroelastic wing is introduced to benefit the forward swept wing fsw. Optimum aeroelastic design method of a resonance type flapping wing for micro air vehicle is presented.
Aeroelastic concepts for flexible wing structures 5 dissertation this licentiate thesis is based on a brief introduction to the area of research and the following appended papers. Aeroelastic twolevel design procedure of a wing structure. Preliminary conceptual aeroelastic design asee peer. The aeroelastic tailoring techniquebased radial basis function. Aeroelastic cosimulation flight loads toolkit msc software.
Nx nastran aeroelasticity nx nastran sol 144 overview. The x53 a summary of the active aeroelastic wing flight research. The aeroelastic design of composite wings modeled as thinwalled beams is investigated through the use of curvilinear fiber. The msc nastran aeroelasticity capability has seen significant. Optimization design of aircraft structures subjected to aeroelastic constraints is not. Composite material structure optimization design and. Further, an active aeroelastic wing can be used to reduce induced drag at low wing strain conditions and, at higher strain conditions, reduce maneuver air loads. Design variables the design variables for each of the skin and spar panels are shown in table 1. Both the bleriot xi and the british bristol prier shown in figure 1. The msc nastran aeroelasticity capability has seen significant enhancements and additions over the last 10 years. Msa3dfoil is used for the aerodynamics conceptualpreliminary design and subsequent analysis of a flying wing uav.
1256 993 1049 383 1232 604 399 731 872 501 1361 86 650 780 1437 694 1488 300 370 1135 589 1480 941 635 689 450 740 1290 1062 720 1165 912 1206 966 247