Research progress on supercooled large droplet icing detection technology
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摘要: 过冷大水滴结冰是飞机结冰防护领域出现的新问题和新挑战,大水滴结冰探测是保障飞机飞行安全的关键技术,制约飞机结冰防护系统的整体发展。论文搜集和整理了相关科技文献,从结冰机理和探测原理角度分析了结冰探测技术所面临的新挑战和机遇,通过对最新适航规范的分析,总结了大水滴结冰探测技术的新要求。按技术成熟度为主线对过冷大水滴结冰探测技术进行了详细介绍和全面总结,并首次提出探头型结冰探测器的水滴轨迹检测和溢流特性检测分类方法。Abstract: The Supercooled Large Droplet(SLD)icing is a new problem that emerged in recent years.The ice detection technology of SLD,which restricts the overall development of the air-craft icing protection system,is a key technology for securing the aircraft flight safety.The arti-cles published recently on SLD ice detection are summarized and discussed.The new problems of the ice detection technology when applyied to SLD are presented from the perspectives of the icing mechanism and the detection principle.The new requirements of the SLD icing detection technol-ogy are summarized through the analysis of the latest airworthiness specification.According to the technology maturity,the SLD icing detection technologies are introduced in detail.A new classification method for the probe type SLD icing detector is firstly reported including droplet traj ectory detection and back-flow characteristics detection.
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