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首页> 外文会议>Conference on Helicopter Operations in the Maritime Environment, Mar 19-20, 2001, London, UK >Helicopter Operations to Moving Decks
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Helicopter Operations to Moving Decks

机译：直升飞机甲板上的直升机操作

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This paper describes research into the development of a system to indicate to helicopter pilots, during their approach to helidecks located on ships and floating offshore platforms, the likelihood that their aircraft would tip, slide or otherwise loose equilibrium whilst on deck. The system has been developed on the basis that, in typical commercial operations, aircraft are not tied down or otherwise constrained, and that the main rotors remain turning. It is assumed that the main upsetting forces applied to the aircraft consist of inertial loads resulting from deck motions and aerodynamic loads from the continued operation of the rotors in nonzero wind speed. The resulting system consists of a single number indicator of deck motion severity, known as the motion severity index or MSI, and an accompanying limit of operability for the helicopter. The limit of operability is dependent upon aircraft type and is also a function of wind speed and direction. This paper describes the formulation of the MSI, and work undertaken to establish its suitability as an indicator of deck motion severity for aircraft stability applications. It also describes the development of the mathematical models of aircraft equilibrium needed to derive limits of operability, and sea-trials undertaken recently to validate these models.
机译：本文描述了对系统开发的研究，该系统向直升机驾驶员指示在他们接近位于船舶和海上浮动平台上的直升机停机坪期间，飞机在甲板上倾斜，滑行或失去平衡的可能性。该系统的开发基于以下事实：在典型的商业运营中，飞机没有被束缚或受到其他约束，并且主旋翼仍在旋转。假定施加在飞机上的主要up锻力包括由甲板运动产生的惯性载荷和由转子在非零风速下持续运行引起的空气动力学载荷。生成的系统包括一个甲板运动严重性的数字指示器，称为运动严重性指数或MSI，以及随之而来的直升机可操作性限制。可操作性的极限取决于飞机的类型，并且也是风速和风向的函数。本文介绍了MSI的制定方法，以及为确立MSI的适用性而进行的工作，以作为飞机稳定性应用中甲板运动严重性的指标。它还描述了为得出可操作性极限所需的飞机平衡数学模型的发展，以及最近为验证这些模型而进行的海试。

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