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Predictive Capabilities of a UH-60 FLIGHTLAB~reg; Model with an External Sling Load

机译:具有外部吊索载荷的UH-60 FLIGHTLAB〜®模型的预测能力

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The objective of this study is to develop a sufficiently realistic simulation that could be used for simulation-based airworthiness certification of external sling loads (ESL) using current state of the art methodology. The U.S. Army Aviation Engineering Directorate (AED), as the Army's airworthiness authority, initiated a program to enhance Advanced Rotorcraft Technologies (ART) FLIGHTLAB~® software for ESL modeling. AED, with support from other government agencies and industry, incorporated the FLIGHTLAB~® enhancements into existing AED FLIGHTLAB~® models, predicted helicopter and load dynamics using frequency and time domain analysis for two different ESL configurations (which were subsequently flight tested), and compared simulation predictions to flight test data. Prediction results in the form of closed-loop attitude response, broken-loop stability margins of the control system, pilot control trims, and load dynamics showed good correlation to flight test results.
机译:这项研究的目的是开发一种足够现实的仿真,该仿真可用于使用当前最新方法对外部吊索负载(ESL)进行基于仿真的适航性认证。作为陆军适航当局的美国陆军航空工程局(AED)启动了一项计划,以增强用于ESL建模的先进旋翼飞机技术(ART)FLIGHTLAB〜®软件。 AED在其他政府机构和行业的支持下,将FLIGHTLAB〜®增强功能合并到现有的AED FLIGHTLAB〜®模型中,使用频域和时域分析对两种不同的ESL配置(随后进行了飞行测试)预测了直升机和载荷动态,以及将模拟预测与飞行测试数据进行了比较。预测结果的形式包括闭环姿态响应,控制系统的闭环稳定性裕度,飞行员控制微调和载荷动态,这些结果与飞行测试结果具有良好的相关性。

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