流体机械

2003, (08) 14-17+13

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气体压缩机高聚物摩擦部件的温升研究
Study on Frictional Temperature Rises of Polymer-composite Matrix Parts for Gas Compressors

马红玉,彭旭东
MA Hong-yu,PENG Xu-dong

摘要(Abstract):

基于有限差分法 ,研究分析了无油润滑压缩机用高聚物基复合材料摩擦部件因摩擦生热产生的温升问题 ,提出了一种新的对流换热系数计算方法 ,模型预测值和有关文献给出的实验结果吻合较好 ;在高速摩擦或温度急剧变化条件下采用抛物线导热模型和双曲型导热模型对一维非稳态温度场进行了比较研究 ,认为对高聚物运动部件来讲采用前种传统模型预测其温升或温度场完全可以满足工程实际要求
A new method for calculating fluid convection coefficient is presented. Both theoretical analysis and numerical simulation are presented of surface steady state temperatures and heat partition for a pin on disk system, in which the pin is made of heavy polymer composites such as PEEK composites, and the disk is carbon steel. It is shown that good agreement is achieved between the calculated and test results. Parabolic and hyperbolic models are used to investigate the one dimensional unsteady state temperatures in the pin. The results indicate that the parabolic model can predict satisfactorily frictional temperature rises or temperature fields of a polymer matrix composite part in a machine.

关键词(KeyWords): 压缩机;摩擦部件;温升;高聚物基复合材料
compressor; frictional parts; frictional temperature rise; polymer matrix composite

Abstract:

Keywords:

基金项目(Foundation): 中国石油天然气集团公司石油科技中青年创新基金 (W0 0 0 3 99)

作者(Author): 马红玉,彭旭东
MA Hong-yu,PENG Xu-dong

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DOI:

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