HALO系统——将“安全机翼”概念应用于航空公司在地面结冰情况下的运营

M. Peterson, L. Nguyen, D.V. Edleman, J.F. Coffel
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引用次数: 2

摘要

已经制定了一项流程,以改进现有的“清洁飞机”概念,该概念目前由FAA航空公司运营指南定义。新的“安全机翼”概念适用于现有的航空公司在结冰条件下的运营计划。它在现行程序系统的基础上增加了污染检测和分类系统。这一功能提高了整个系统的安全性,同时消除了繁琐的检查,减少了延迟,节省了除冰/防冰液的成本。通过消除不必要的除冰,它还减少了使用过量除冰液对环境的影响。HALO污染检测系统由超声波传感器、处理电子设备和驾驶舱显示器组成。这种多传感器系统自动且持续地监测关键的机翼区域。超声波传感器提供区域覆盖和对各种污染物的灵敏度。这些传感器集成到HALO系统设计中,该设计基于将污染粗糙度、位置和程度与空气动力学性能相关联。HALO系统的发展通过了一个重要的里程碑,1994- 1995年冬季在西北MD-80上进行了服役评估。该评估旨在显示技术在航空公司冬季运营的苛刻环境中的可行性。单传感器评价系统的分类正确率大于95%,对多种污染物具有敏感性。一个多传感器、广泛覆盖的原型系统将在1995- 1996年冬季进行测试。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
The HALO system-applying the "safe wing" concept to airline operations in ground icing conditions
A process has been developed to improve upon the existing "Clean Aircraft" concept as currently defined by FAA guidelines for airline operations. The new "Safe Wing" concept works with existing airline programs for operations in icing conditions. It adds a contamination detection and classification system to the current procedural system. This addition improves overall system safety while eliminating burdensome checks, reducing delays and saving deicing/anti-icing fluid costs. By eliminating unnecessary deicings, if also reduces the environmental impact of using excessive deicing fluid. The HALO contamination detection system is comprised of ultrasonic sensors, processing electronics and a cockpit display. This multisensor system automatically and continuously monitors critical wing areas. The ultrasonic sensors provide area coverage and sensitivity to a variety of contaminants. These sensors are integrated into a HALO system design based on correlating contamination roughness, location and extent with aerodynamic performance. The HALO system development passed a major milestone with an in-service evaluation on a Northwest MD-80 during the 1994-95 winter season. This evaluation was designed to show technology viability in the demanding environment of airline winter operations. The single-sensor evaluation system showed a correct classification rate of greater than 95 percent and sensitivity to a variety of contaminants. A multi-sensor, broad coverage prototype system will be tested in the 1995-96 winter season.
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