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Transonic-Small-Disturbance and Linear Analyses for the Active Aeroelastic Wing Program

机译:主动气动弹性翼计划的跨音速小扰动和线性分析

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摘要

Analysis serves many roles in the Active Aeroelastic Wing (AAW) program. It has been employed to ensure safe testing of both a flight vehicle and wind tunnel model, has formulated models for control law design, has provided comparison data for validation of experimental methods and has addressed several analytical research topics. Aeroelastic analyses using mathematical models of both the flight vehicle and the wind tunnel model configurations have been conducted. Static aeroelastic characterizations of the flight vehicle and wind tunnel model have been produced in the transonic regime and at low supersonic Mach numbers. The flight vehicle has been analyzed using linear aerodynamic theory and transonic small disturbance theory. Analyses of the wind-tunnel model were performed using only linear methods. Research efforts conducted through these analyses include defining regions of the test space where transonic effects play an important role and investigating transonic similarity. A comparison of these aeroelastic analyses for the AAW flight vehicle is presented in this paper. Results from a study of transonic similarity are also presented. Data sets from these analyses include pressure distributions, stability and control derivatives, control surface effectiveness, and vehicle deflections.
机译:在主动气动弹性翼(AAW)程序中,分析扮演着许多角色。它已被用来确保飞行器和风洞模型的安全测试,已经制定了控制律设计模型,提供了用于验证实验方法的比较数据,并解决了一些分析研究主题。使用飞行器和风洞模型配置的数学模型进行了空气弹性分析。飞行器和风洞模型的静态气动弹性表征已在跨音速状态下以低超音速马赫数产生。已经使用线性空气动力学理论和跨音速小扰动理论对飞行器进行了分析。仅使用线性方法对风洞模型进行了分析。通过这些分析进行的研究工作包括确定测试空间中跨音速效应起重要作用的区域以及调查跨音速的相似性。本文对AAW飞行器的这些空气弹性分析进行了比较。还提出了跨音速相似性研究的结果。这些分析的数据集包括压力分布,稳定性和控制导数,控制表面有效性和车辆变形。

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