Thermal reliability analysis of a BLDC motor in a high-speed axial fan by the accelerated-life test and numerical methods

2008 ◽  
Vol 44 (11) ◽  
pp. 1355-1369 ◽  
Author(s):  
Jin-Huek Hur ◽  
Tae-Gu Lee ◽  
Sun-Ae Moon ◽  
Sang-Jae Lee ◽  
Hoseon Yoo ◽  
...  
Keyword(s):  
Numerical Methods ◽  
Reliability Analysis ◽  
High Speed ◽  
Accelerated Life Test ◽  
Bldc Motor ◽  
Life Test ◽  
Axial Fan ◽  
Thermal Reliability ◽  
Accelerated Life

Accelerated Life Test Model for Life Prediction of Piston Assemblies in Hydraulic Pump and Motor

2006 ◽  
Vol 326-328 ◽  
pp. 649-652 ◽  
Author(s):  
Y.B. Lee ◽  
H.E. Kim ◽  
Y.C. Yoo ◽  
J.H. Park
Keyword(s):  
High Speed ◽  
Operating Time ◽  
Accelerated Life Test ◽  
Test Time ◽  
Test Model ◽  
Life Test ◽  
Test Models ◽  
Accelerated Life ◽  
Low Weight ◽  
Sensitive Parameters

The safety factor of hydraulic piston pumps and motors shows a tendency to decrease due to high pressurization, high speed and low weight/volume realization to enhance the output density. Therefore, more effective test models are necessary to predict the exact life. The sensitive parameters in the endurance life test are speed, pressure and temperature, and failure production increases in proportion to the operating time. In this research, the authors propose a combined accelerated life test model using the analysis method of the combined accelerated life test results of piston-shoe assemblies by simultaneously applying high speed, high pressure and high temperature in accordance with the variation in speed, pressure and temperature in order to reduce the life test time.

Highly Accelerated Life Test for High Speed Spindle Reliability

2021 ◽  
pp. 59-70
Author(s):  
Lanzhi Liang ◽  
Weike Guo ◽  
Huawei Zhang ◽  
Hao Chen ◽  
Ruediger Heim ◽  
...  
Keyword(s):  
High Speed ◽  
Accelerated Life Test ◽  
Life Test ◽  
Accelerated Life
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