针对C/C复合材料飞机(B757)刹车盘制动过程中温度测量过程复杂和温度场难于表征的问题,采用有限元方法结合惯性台实验对其温度场进行了分析研究.根据刹车盘制动原理和传热原理,确定了温度场有限元分析中的载荷、边界条件和加载过程.通过仿真后处理形象地描述了制动过程中刹车盘温度场的变化,直观地表现了温度场分布状态.结果表明:在正常着陆的能量条件下中间静盘处测温点在46 s时达到最高温度659℃;承压盘和压紧盘的测温点则在48.5 s时达到最高温度,整个过程各点温度先升高后降低,中间静盘的热负荷最大,温升最快,承压盘次之,压紧盘最小.对比实验测量与仿真结果,两者吻合较好,证实温度场的有效性.
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