中文
Home > Scientific Research > Paper Publications

以超临界二氧化碳为介质的径向箔片轴承静特性分析

Hits:

  • Key Words:超临界二氧化碳;径向箔片轴承;有限差分法;物性;静特性

  • Abstract:以超临界二氧化碳(S-CO_2)布雷顿循环所用压缩机中的径向箔片气体轴承为研究对象，考虑S-CO_2在近临界区的实际物性，运用有限差分法数值求解变密度变黏度湍流雷诺方程，耦合弹性箔片变形方程，计算以S-CO_2为润滑介质的径向气体轴承的气膜压力分布规律，并分析近临界区S-CO_2物性变化对轴承承载力、摩擦力矩的影响。计算结果表明：近临界区密度、黏度的物性突变对轴承的承载力和摩擦力矩影响较大，且越靠近临界点时影响越显著；同一压力下，承载力和摩擦力矩随着温度的升高而减小，同一温度下，承载力和摩擦力矩随着压力的升高而增大；随着偏心率、轴承数和径向轴承的长径比的增大，承载力和摩擦力矩均增大，而偏位角减小。

  • Volume:v.47;No.367

  • Issue:03

  • Translation or Not:no

  •

  • Telephone:

  • Email:

  • PostalAddress:
Laoshan Campus-99 Songling Road, Qingdao City, Shandong Province
Sifang Campus-No.53 Zhengzhou Road, Qingdao City, Shandong Province
Sino-German International Cooperation Zone (Sino-German Campus)-No. 3698 Tuanjie Road, West Coast New District, Qingdao City, Shandong Province
Gaomi Campus-No. 1 Xingtan West Street, Gaomi City, Shandong Province
Jinan Campus-No. 80 Wenhua East Road, Jinan City, Shandong Province ©2015 Qingdao University of Science and Technology
Administrator email: master@qust.e		 Click:
  MOBILE Version

The Last Update Time:..