摘要
通过研究填料含量对聚醚醚酮(PEEK)基复合材料密度、比热和导热系数等热学和物性参数影响的规律,提出了三相PEEK基复合材料热学和物理性质的计算模型;以销/盘摩擦副作为研究对象,采用有限元分析法计算模拟了复合材料摩擦销的温度分布,给出了销的三维稳态和瞬态温度场,并讨论了填料含量对摩擦销端面温升的影响规律.结果表明,计算结果与试验结果吻合较好.
The models for predicting the thermal and physical properties of the polyetheretherketone （PEEK） composites filled with polytetrafluroethylene and nanometer Al2Oa were established by accounting for the effects of the type, content, and construction of the fillers. The effect of the fillers on the rubbing surface temperature rise and friction and wear behavior of the machinery moving parts made of the PEEK composites was also considered. Thus a series friction and wear tests were performed by sliding the nanoAl2Oa/PTFE/PEEK composite pins against a steel disc so as to get the 3-D temperature distributions of the pins under steady and unsteady states making use of a three-dimensional finite element method （FEM）. The effect of the filler content of nano-Al2Oa with high thermal conductivity on the thermal properties of the PEEK composites was discussed. The results showed that the numerical simulation solutions based on the FEM were in good agreement with the experimental results. It was feasible to improve the thermal properties of the filled PEEK composites by incorporation of nano-Al2Oa at a high content. However, it was imperative to select proper content of the nano-Al2Oa so as to acquire excellent comprehensive properties of the PEEK composites.
出处
《摩擦学学报》
EI
CAS
CSCD
北大核心
2005年第4期353-357,共5页
Tribology
基金
中国石油天然气集团公司石油科技中青年创新基金资助项目(W000309
W020311)
石油大学创新基金资助项目(S2004-15).
关键词
聚醚醚酮(PEEK)复合材料
热物理性质
温度场
数值模拟
polyetheretherketone （PEEK） composites thermal and physical properties temperature fieldFEM simulation
