碳纤维织物结构对摩擦材料温度分布的影响

发布时间：2018-04-29 04:06

  本文选题：碳纤维 + .D织物结构　； 参考：《中国表面工程》2017年04期

【摘要】：为研究碳纤维织物增强树脂基摩擦材料在摩擦过程中的温度分布规律,以评价此类材料的耐热性能。采用有限元分析与单胞模型相结合的方法,分别建立浅交弯联、浅交直联和深交联3种结构的碳纤维织物增强树脂基摩擦材料有限元模型,模拟特定工况下的摩擦副热传导过程,分析织物结构和编织密度对温度分布的影响规律。结果表明:在摩擦副接合过程中,摩擦温度先升高后降低,摩擦结束时刻的最高温度出现在对偶片中心对称面处;相同编织密度时,浅交弯联织物结构导热性能最优,其摩擦温度峰值最低(仅为168.5℃,其他两种结构摩擦材料的摩擦峰值温度分别为178.0℃和172.1℃);随纬纱编织密度的增加,浅交弯联碳纤维织物增强树脂基摩擦材料中碳纤维体积分数增大,导热性能变优,摩擦峰值温度降低。
[Abstract]:In order to study the temperature distribution of carbon fiber reinforced resin based friction materials during friction, the heat resistance of such materials was evaluated. The finite element models of carbon fiber reinforced resin-based friction materials with three kinds of structures, namely, shallow-bend, shallow-cross-straight and deep-crosslinked, were established by combining the finite element analysis and the unit cell model, respectively. The heat conduction process of friction pairs under specific working conditions was simulated and the influence of fabric structure and braiding density on temperature distribution was analyzed. The results show that the friction temperature rises first and then decreases, the highest temperature at the end of friction occurs at the center symmetric plane of the pair, and the thermal conductivity of the fabric structure is optimal when the braiding density is the same. Its friction temperature peak value is the lowest (only 168.5 鈩，

本文编号：1818300