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首页> 外文期刊>The Aeronautical Journal >A turbulence criterion for safe helicopter operations to offshore installations
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A turbulence criterion for safe helicopter operations to offshore installations

机译：直升机安全操作到海上设施的湍流准则

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This paper describes the development of a wind turbulence criterion for the safe operation of helicopters to offshore installations. The development of the criterion was recommended following a review of the environmental effects around offshore platform helidecks. Currently, criteria exist for ambient temperature and for vertical wind component in the vicinity of helidecks, but a questionnaire-based survey of helicopter pilots revealed that the principal safety hazard and source of highest workload is turbulence around offshore installations. The new turbulence criterion will plug a long-standing gap in the guidance on offshore helideck design. The paper describes how the criterion has been developed using piloted flight simulation in a research flight simulator together with data from wind tunnel tests on offshore platforms. Initial validation has been successfully performed, and extended to include correlation with the large database of helicopter operational flight data records being collected through the UK North Sea Helicopter Operations Monitoring Programme (HOMP). The turbulence criterion will be used, together with existing criteria on vertical wind component and temperature, in the assessment of new offshore installation designs, or proposed modifications to existing designs, to determine wind conditions where turbulence is likely to be excessive for safe helicopter operations. These will be used to estimate helideck operability and thereby inform the installation topsides design process, and will provide input to the setting and maintenance of helicopter operational limitations for individual installations. The work will lead to improved safety through better prediction of safe operating envelopes and helideck operability at the design stage. In addition, development of the work is expected to enable the wind environment around offshore installations to be mapped and monitored in-service using helicopter flight data records. The new turbulence criterion has been included in updated guidance on helideck design, and offshore installation designers are now required to inform helicopter operators about wind conditions which result in violations of the turbulence criterion on their offshore installations (as is currently the case for the temperature and vertical wind component criteria).
机译：本文描述了为直升机到海上设施的安全运行而制定的风湍流准则。在审查了海上平台直升机停机坪周围的环境影响后，建议制定该标准。目前，已经有关于环境温度和直升机停机坪附近垂直风分量的标准，但是对直升机飞行员的基于问卷的调查显示，主要的安全隐患和最大的工作量来源是海上设施周围的湍流。新的湍流准则将填补海上直升机停机坪设计指南中的长期空白。本文介绍了如何使用研究飞行模拟器中的飞行员飞行模拟以及海上平台风洞试验的数据来制定标准。初步验证已成功完成，并扩展到与通过英国北海直升机运行监控计划（HOMP）收集的大型直升机运行飞行数据记录的相关性。在评估新的海上安装设计或对现有设计的拟议修改中，将使用湍流准则以及有关垂直风分量和温度的现有准则，以确定对于直升机安全操作而言湍流可能过大的风况。这些将用于估计直升机停机坪的可操作性，从而告知安装顶面设计过程，并将为设置和维护单个安装的直升机操作限制提供输入。通过在设计阶段更好地预测安全运行范围和直升机停机坪的可操作性，这项工作将提高安全性。此外，工作的开展有望使海上设施周围的风环境能够在使用直升机飞行数据记录的情况下进行制图和监视。新的湍流标准已包含在直升机停机坪设计的更新指南中，现在要求海上安装设计人员告知直升机操作员有关风的情况，这会导致违反海上安装的湍流标准（目前的温度和温度情况）垂直风分量标准）。

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