碳/碳复合飞机刹车材料低能摩擦性能研究

详细信息

STUDY OF LOW ENERGY FRICTION PROPERTIES ON CARBON/CARBON COMPOSITES USED FOR AIRCRAFT BRAKES

1.
School of Material Science and Engineering, Northwestern Polytechnical University, Xi'an 710072;
2.
School of Material Science, Xi'an Jiaotong University, Xi'an 710049

摘要

摘要: 研究了碳/碳(简称C/C)复合飞机刹车材料在低能载条件下的摩擦磨损性能,分析了刹车力矩与刹车速度之间关系曲线,探讨了C/C复合材料因能载变化出现摩擦系数最大值的根本原因.结果表明:随着刹车比压增加,摩擦系数最大值下降;低能条件下C/C复合材料摩擦面较粗糙,磨损率约为正常能载下的两倍.
- 碳/碳 /
- 摩擦系数 /
- 低能载 /
- 飞机刹车
Abstract: The low energy friction and wear properties of carbon/carbon(C/C) composites uses for aircraft brakes were studied,curves of relationship between the moment of brake force and brake velocity were analyzed, and the essential caase was discussed of why C/C composites possess a maximum friction coefficient when energy is changed. The results show that the maximum friction coefficient is decreased as the specific pressure is increased. The friction surface of C/C composites is rougher in low energy condition. The wear rate is about twice as large as in normal energy conditions.
- carbon/carbon /
- friction coefficient /
- low energy /
- aircraft brake