Experimental Study on the Damage Evolution of Gas-Bearing Coal and Its Electric Potential Response

2019 ◽  
Vol 52 (11) ◽  
pp. 4589-4604 ◽  
Author(s):  
Yue Niu ◽  
Chaojie Wang ◽  
Enyuan Wang ◽  
Zhonghui Li
Keyword(s):  
Experimental Study ◽  
Electric Potential ◽  
Damage Evolution ◽  
Potential Response ◽  
Gas Bearing

scholarly journals Pivoted-Pad Journal Gas Bearing Performance in Exploratory Operation of Brayton Cycle Turbocompressor

1968 ◽  
Vol 90 (4) ◽  
pp. 687-696 ◽  
Author(s):  
R. Y. Wong ◽  
W. L. Stewart ◽  
H. E. Rohlik
Keyword(s):  
Experimental Study ◽  
Journal Bearing ◽  
Inert Gas ◽  
Brayton Cycle ◽  
Ambient Conditions ◽  
Operating Characteristics ◽  
The Third ◽  
Loading Device ◽  
Bearing Design ◽  
Gas Bearing

This paper describes findings obtained to date in the area of journal gas bearings from an experimental study of a Brayton cycle turbocompressor designed for the requirements of a two-shaft 10-kw space power system. The journal bearing design utilizes three pads pivoted on conforming balls and sockets. Two of the pivots are rigidly mounted to the frame, and the third pivot is mounted to the frame through a low-spring-rate diaphragm. This paper describes the salient package and bearing design features and then presents the principal results obtained from testing the package in both a spin calibration rig and operation at design temperature conditions with an inert gas. The results discussed include (a) the successful use of a pneumatic loading device to vary pad load during operation, (b) the operating characteristics of the bearings as obtained over a range of pad loads and ambient conditions, (c) structural and dynamic behavior of the bearing-support system during design temperature operation and (d) a discussion of the wear characteristics of the conforming ball-and-socket pivot as obtained from the tests made to date.

Experimental Study on Damage Evolution Characteristics of Rock-Like Material

2019 ◽  
Vol 44 (10) ◽  
pp. 8503-8513
Author(s):  
Zhang Jinhao ◽  
Chen Hongkai ◽  
Wang He ◽  
Zhou Zheng
Keyword(s):  
Experimental Study ◽  
Damage Evolution ◽  
Evolution Characteristics

Experimental study on bump-foil gas bearing with different diametric clearance configurations

2015 ◽  
Vol 29 (5) ◽  
pp. 2089-2095 ◽  
Author(s):  
Yu Hou ◽  
Bin Ma ◽  
Shanju Yang ◽  
Xingya Chen ◽  
Yueqing Zheng ◽  
...  
Keyword(s):  
Experimental Study ◽  
Gas Bearing

Experimental study and numerical modeling of the damage evolution of thermal barrier coating systems under tension

2018 ◽  
Vol 61 (12) ◽  
pp. 1882-1888
Author(s):  
ShaoLin Li ◽  
HongWei Yang ◽  
HongYu Qi ◽  
JiaNan Song ◽  
XiaoGuang Yang ◽  
...  
Keyword(s):  
Experimental Study ◽  
Numerical Modeling ◽  
Thermal Barrier Coating ◽  
Damage Evolution ◽  
Thermal Barrier ◽  
Barrier Coating

Experimental Study on Journal Gas Bearing with Axial Slot for a Miniature Air Turboexpander

2012 ◽  
Vol 220-223 ◽  
pp. 611-614
Author(s):  
Ru Gang Chen ◽  
Ya Jun Nie ◽  
Quan Zhou ◽  
Chao Gong ◽  
Tao Chen
Keyword(s):  
Experimental Study ◽  
Instability Threshold ◽  
Radial Clearance ◽  
Experimental Investigations ◽  
New Type ◽  
The Stability ◽  
The Relationship ◽  
Gas Bearing

A new type of hydrostatic journal gas bearing with axial slot of tangential gas entry for miniature air turboexpander is firstly developed in this paper. This bearing configuration is presented and constructed to fit manufacture simplicity. The experimental investigations are carried out to reveal the relationship between bearing parameters and instability threshold speed. It is feasible to increase the stability of hydrostatic journal gas bearing by adopting this kind of configuration with axial slot of tangential gas entry. Some valuable tested results are obtained to reveal the optimum slot height and radial clearance for this miniature air turboexpander.

Sign in / Sign up

Export Citation Format

Share Document