A small base isolation system using a new device that used friction force was developed. In this paper, dynamic characteristics of the system were investigated by an experiment using artificial seismic wave. The bearing combination of three cases, four spherical metal bearings, two spherical metal and two marble plate bearings, four marble plate bearings, was done in the experiment. The peak ac...

Experimental analysis on the oil supply characteristics of scroll compressor for package air conditioner has been presented based on the experimental apparatus operating at variable speed Scroll compressor has four major lubricating parts : the lower journal bearing, the main journal bearing, the orbiting scroll journal bearing and the thrust bearing between the orbiting scroll and the main fra...

The measurement of the thickness of an oil film in a lubricated component is essential information for performance monitoring and control. In this work a new method for oil film thickness measurement, based on the reflection of ultrasound, is evaluated for use in fluid film journal bearing applications. An ultrasonic wave will be partially reflected when it strikes a thin layer between two soli...

The paper expands the work by Kinnear and Weston[1] on squeeze film bearing design to the general case and compares the revised methodology with classical bearing design[2,3,4] and hybrid bearing design[5]. The analysis, which employs a partial differentiation of the Poisseuille and Hagen-Poiseuille bearing flow equations, enables a mathematical model for the bearing squeeze film to be develope...

This paper outlines briefly a method suggested as a basis for journal-bearing design more especially for applications where the loads and speeds are variable and may reach relatively high values. This method is based upon two primary considerations; first, that the bearing shall operate in the region of stable lubrication, and second, that the operating temperature of the bearing shall not exce...