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首页> 外文期刊>Journal of the American Helicopter Society >Flight Test and Simulation of a Cargo Container Slung Load in Forward Flight
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Flight Test and Simulation of a Cargo Container Slung Load in Forward Flight

机译:向前飞行中一个货柜悬挂负载的飞行测试和模拟

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This paper presents recent results from a cooperative effort by the U.S. Army Aeroflightdynamics Directorate, the Technion Israel Institute of Technology, and Northern Arizona University to study and simulate the behavior of the 6 × 6 8 ft CONEX cargo container in forward flight suspended beneath a UH-60 Black Hawk helicopter. This load, like other cargo containers, is subject to massively separated unsteady flow and is limited by stability to operational airspeeds well below the power-limited speed of the configuration. The study makes use of aerodynamic data from wind tunnel, flight test, and computational fluid dynamics. The objective is a simulation of the helicopter-slung load system validated over the complete flight envelope. The principal remaining technical challenge is a model of the unsteady load aerodynamics capable of predicting the critical unstable speed. Some progress has been made in meeting this challenge.
机译:本文介绍了美国陆军航空飞行动力学局,以色列以色列理工学院和北亚利桑那大学合作研究的最新结果,该研究研究并模拟了悬挂在UH下的6×6 8英尺CONEX货箱在向前飞行中的行为-60黑鹰直升机。像其他货物集装箱一样,这种负载会受到大量分开的非恒定流的影响,并且受运行空速稳定性的限制,远低于配置的功率限制速度。该研究利用了风洞,飞行试验和计算流体动力学中的空气动力学数据。目标是在整个飞行包线范围内验证直升机直升式负载系统的仿真。剩下的主要技术挑战是能够预测临界不稳定速度的非稳态载荷空气动力学模型。在应对这一挑战方面取得了一些进展。

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