The Effect of External Forced Vibrations on the Pressure Distribution of Short Journal Bearings

2nd International Conference on Engineering Sciences

Alhumdany, A.A.^1 ; Abdulkadum, H.M.^1

Mechanical Engineering Department, University of Kerbala, Iraq^1

关键词: Central finite difference;    Dynamic loading conditions;    Forced vibration;    Harmonic excitation;    Harmonic vibration;    Initial and boundary conditions;    Oil pressures;    Self excitation;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/433/1/012067/pdf
DOI  :  10.1088/1757-899X/433/1/012067

来源: IOP

【 摘 要 】

The pressure distribution of a short journal bearing in dynamic loading conditions under the effect of forced harmonic excitation was investigated. The conventional form of the Reynolds equation was analysed numerically using the central finite difference technique with appropriate initial and boundary conditions. These numerical equations were written in FORTRAN-95 to obtain relevant results. According to the results, maximum oil pressure is obtained when external forced harmonic vibration is increased, giving a 51.92 percent increase over that obtained under self-excitation only.