>
Fa   |   Ar   |   En
   investigation and optimization of textured water-lubricated journal bearings using multi-objective optimization  
   
نویسنده li q. ,wang y. ,li x. ,li x. ,zhang g. ,du y. ,xu w.
منبع journal of applied fluid mechanics - 2024 - دوره : 17 - شماره : 9 - صفحه:1912 -1928
چکیده    Water lubricated bearings can be used to reduce contamination due to lubricant leakage in heavy machinery such as power positioning systems of offshore platforms and ship propulsion systems. the lubrication model of a textured two-dimensional parallel friction pair and a textured water-lubricated journal bearing are developed to investigate the lubrication performance. the governing equation is solved, and the fluid cavitation is analyzed using the zwart-gerber-belamri (zgb) model. a multi-objective optimization method combining the response surface and non-dominated sorting genetic algorithm-ii (nsga-ii) is used to optimize the textured journal bearings. the results indicate that a small texture width will inhibit the occurrence of liquid film cavitation. with the rise in the texture width, the cavitation effect gradually rises and stabilizes. as the texture depth deepens, the micro dynamic pressure effect is enhanced and liquid film pressure rises. through the tests, it is found that the optimized texture parameters can be implemented to effectively diminish the friction and wear volume, also the optimized textured bearing hydrodynamic pressure effect is enhanced at the same speed.
کلیدواژه lubrication performance ,computational fluid dynamics ,surface texture ,optimization ,water-lubricated
آدرس china university of petroleum ( east china), college of new energy, china, china university of petroleum ( east china), college of new energy, china, china university of petroleum ( east china), college of new energy, china. china university of petroleum ( east china), college of new energy, china, china university of petroleum ( east china), college of new energy, china. china university of petroleum ( east china), college of new energy, china, china university of petroleum ( east china), college of new energy, china, china university of petroleum ( east china), college of new energy, china, china university of petroleum ( east china), college of new energy, china
پست الکترونیکی xuweiwei@upc.edu.cn
 
     
   
Authors
  
 
 

Copyright 2023
Islamic World Science Citation Center
All Rights Reserved