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首页> 外文会议>Annual Brake Colloquium and Exhibition >Friction Performance and Thermal Analysis of Carded and Needle-Punched Kevlar Felt-Reinforced/Polyimide Matrix Composite Friction Materials
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Friction Performance and Thermal Analysis of Carded and Needle-Punched Kevlar Felt-Reinforced/Polyimide Matrix Composite Friction Materials

机译：梳理和针刺Kevlar毛毡增强/聚酰亚胺基质复合摩擦材料的摩擦性能和热分析

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摘要

The objective of this paper is to announce the results of testing and analysis, including friction characteristics and thermal properties, of a friction material from a novel manufacturing process. A Kevlar felt-reinforced polyimide matrix composite ("Braketex"), including results with fiber modifications hybridized with glass or carbon nanofibers, is investigated. Dry brake friction testing on a dynamometer simulating various aircraft landing brake energy levels using disc samples having 4.625" O.D.×3.625" I.D.(11.7475 cm×9.2075 cm friction area is equal to 41.74 cm{sup}2) single friction material surfaces against cast iron and other reactor surfaces was conducted. Thermal conductivity of Braketex was low and reactor plates absorbed most of the energy, showing insignificant wear below 50% of the energy level simulating a Boeing 747 normal landing. Friction stability was exhibited through approximately 80% of the landing energy. Friction transitions occurring beyond that level and continuing far beyond were observed and reported. The composites effective friction performance through energy levels simulating Rejected Takeoff and final taxiing.
机译：本文的目的是宣布从新颖的制造过程中爆发测试和分析，包括摩擦特性和热性能的结果。研究了Kevlar毡加强的聚酰亚胺基质复合物（“Braketex”），包括用玻璃或碳纳米纤维杂交的纤维改性的结果进行研究。使用具有4.625“OD×3.625”ID（11.7475cm×9.2075cm摩擦区域等于41.74cm {sup} 2）对铸铁的单一摩擦材料表面，模拟各种飞机着陆制动能量水平的摩擦仪模拟各种飞机着陆制动能量水平和其他反应器表面进行。 Braketex的导热系数低，反应器板吸收了大部分能量，显示出低于能量水平的低于50％的微不足道的磨损，模拟波音747正常着陆。通过约80％的着陆能量表现出摩擦稳定性。观察并报告了超越该水平并继续远远发生摩擦转变。复合材料通过模拟被拒绝的起飞和最终出租车的能级有效摩擦性能。

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