(中南大学 粉末冶金国家重点实验室，长沙 410083)
摘 要: 利用有限元热分析软件ANSYS建立炭/炭复合材料制动过程三维有限元模型，确定相关热载荷计算方法和关键参数，仿真制动过程瞬态温度场。计算结果表明：在试环轴向存在明显温度梯度，而径向温度梯度微小，摩擦表面在t=12.7 s时达到最高温度
关键字: 炭/炭复合材料；温度场；有限元；制动
（State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China）
Abstract:The 3-dimentional finite element model of C/C composite materials during braking was established by means of finite element software ANSYSY. The calculation method of heat load and relative parameters were confirmed, and the temperature field was simulated. The calculation results show that high thermal gradient appears in the axis direction of the sample, but low thermal gradient appears in the radial direction. The temperature on friction surface raises to the maximum of 662 ℃in the big radius at 12.7 s. The simulation results are consistent with the experiment data, which verifies the validity of the simulated results.
Key words: carbon/carbon composite; temperature field; finite element; brake
