Non Linear Analysis on Multi Lobe Journal Bearings

International Conference on Materials, Alloys and Experimental Mechanics 2017

材料科学;金属学;机械制造

Bhaskar, S. Udaya^1 ; Hussian, M. Manzoor^2 ; Ali, Md. Yousuf^3

Al Habeeb College of Engineering and Technology, Hyderabad, India^1

JNT University Hyderabad, Hyderabad, India^2

Nawab Shah Alam Khan College of Engineering, Hyderabad, India^3

关键词: Attitude angle;    eccentricity;    multi lobe;    non inear;    Sommerfeld number;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/225/1/012260/pdf
DOI  :  10.1088/1757-899X/225/1/012260

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Multi lobe journal bearings are used in machines which operate at high speeds and high loads. In this paper the multi lobe bearing are analyzed to determine the effect of surface roughness during non linear loading. A non-linear time transient analysis is performed using the fourth order Runge Kutta method. The finite difference method is used to predict the pressure distribution over the bearing surface. The effect of eccentric ratio is studied and the variation of attitude angle is discussed. The journal center trajectories were calculated and plotted.