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首页> 外文期刊>Journal of Aircraft >Full-Scale Testing of a Centrifugally Powered Pneumatic De-Icing System for Helicopter Rotor Blades
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Full-Scale Testing of a Centrifugally Powered Pneumatic De-Icing System for Helicopter Rotor Blades

机译：直升机旋翼桨叶离心气动除冰系统的全面测试

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摘要

A centrifugally powered pneumatic de-icing system was developed and tested. Two prototype designs were fabricated and parametrically tested at representative icing conditions. The superior performing design was able to remove ice thicknesses as small as 0.078 in. at -14 degrees C and 0.112 in. at -5 degrees C. This configuration was reproduced and installed on the outboard 8 ft section of a full-scale 24 ft K-MAX blade. Full-scale icing tests were conducted at Kaman's outdoor whirl tower using a custom portable icing cloud generator to produce a controlled icing cloud as well as a secondary cloud generator that produced large, uncontrolled water droplets. During full-scale icing tests, the de-icing system was able to remove ice thicknesses as small as 0.08 in. at 270 rpm. A method to calculate power drawn from the main rotor during de-icing system operation is presented. During depressurization, the system draws a peak power of 4.15 hp from the rotor and 0.02 hp during pressurization. The total weight of the de-icing system is comparable to that of existent erosion caps installed on in-service helicopters.
机译：开发并测试了离心式气动除冰系统。制造了两个原型设计，并在有代表性的结冰条件下进行了参数测试。性能卓越的设计能够去除-14摄氏度时小至0.078英寸的冰厚度和-5摄氏度时小至0.112英寸的冰厚度。此配置已复制并安装在全尺寸24英尺的外侧8英尺部分K-MAX刀片。在Kaman的室外旋风塔上进行了全面的结冰测试，使用定制的便携式结冰云产生器产生受控的结冰云，以及产生大量不受控制的水滴的辅助结云生成器。在全面的结冰测试过程中，除冰系统能够以270 rpm的速度去除厚度仅为0.08英寸的冰。提出了一种在除冰系统运行期间计算从主转子汲取的功率的方法。在降压过程中，系统从转子吸取的峰值功率为4.15 hp，在降压过程中吸取的峰值功率为0.02 hp。除冰系统的总重量与安装在役直升机上的防腐蚀盖的总重量相当。

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  • 来源
    《Journal of Aircraft》 |2017年第1期|220-228|共9页
  • 作者

    Drury Matthew D.; Szefi Joseph T.; Palacios Jose L.;

  • 作者单位

    Penn State Univ, Dept Aerosp Engn, 229 Hammond Bldg, University Pk, PA 16802 USA;

    Invercon LLC, 336 South Fraser Street, State Coll, PA 16801 USA;

    Penn State Univ, Dept Aerosp Engn, 229 Hammond Bldg, University Pk, PA 16802 USA;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
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