Open AccessFuzzy logic–based intelligent control for hydrostatic journal bearing
Author(s) -
Waheed Ur Rehman,
Yan Luo,
Yongqin Wang,
Jiang Guiyun,
Nadeem Iqbal,
Shafiq Ur Réhman,
Shamsa Bibi
Publication year - 2019
Publication title -
measurement + control/measurement and control
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.286
H-Index - 21
eISSN - 2051-8730
pISSN - 0020-2940
DOI - 10.1177/0020294019830110
Subject(s) - bearing (navigation) , hydrostatic equilibrium , control theory (sociology) , controllability , rotordynamics , control engineering , fuzzy logic , computer science , stiffness , controller (irrigation) , intelligent control , engineering , mechanical engineering , control (management) , structural engineering , artificial intelligence , rotor (electric) , physics , mathematics , agronomy , quantum mechanics , biology
Most of the researchers are focusing to bring automation in mechanical systems. So, current research work presents a mechatronic system called active hydrostatic journal bearing that is a higher demand of fast-growing industrial needs. The objective is to improve the dynamics and static characteristics of hydrostatic journal bearing. To achieve the objective, a feedback servo controlled system is presented. A mathematical model is proposed for newly proposed active hydrostatic journal bearing with servo control. A comparison has been performed between the active hydrostatic journal bearing and traditional/conventional hydrostatic journal bearing under the influence of different dynamic conditions of load, viscosity, speed, and pressure. The results demonstrate that proposed active hydrostatic journal bearing has better performance, including controllability, stability, faster response, higher stiffness as well as better disturbance rejection. To further enhance the performance of proposed active hydrostatic journal bearing, two different control strategies are proposed such as proportional–integral–derivative and intelligent control. The results show that fuzzy logic–based intelligent control has faster response, greater amplitude reduction, and good stiffness against load. So, it shows that role of active lubrication in hydrostatic journal bearing will have potential applications in high load and high speed.