Imprecise Statistical Inference for Accelerated Life Testing Data: Imprecision Related to Log-Rank Test

2018 ◽  
pp. 1-8
Author(s):  
Abdullah A. H. Ahmadini ◽  
Frank P. A. Coolen
Keyword(s):  
Statistical Inference ◽  
Accelerated Life Testing ◽  
Rank Test ◽  
Life Testing ◽  
Log Rank Test ◽  
Accelerated Life ◽  
Testing Data ◽  
Data Imprecision

scholarly journals Imprecise inference based on the log-rank test for accelerated life testing

Metrika ◽  
2021 ◽  
Author(s):  
Frank P. A. Coolen ◽  
Abdullah A. H. Ahmadini ◽  
Tahani Coolen-Maturi
Keyword(s):  
Model Misspecification ◽  
Accelerated Life Testing ◽  
Function Parameter ◽  
Rank Test ◽  
Life Testing ◽  
Survival Functions ◽  
Parametric Function ◽  
Log Rank Test ◽  
Accelerated Life ◽  
Using Data

AbstractThis paper presents an imprecise predictive inference method for accelerated life testing. The method is largely nonparametric, with a basic parametric function to link different stress levels. The log-rank test is used to provide imprecision for the link function parameter, which in turn provides robustness in the resulting lower and upper survival functions for a future observation at the normal stress level. An application using data from the literature is presented, and simulations show the performance and robustness of the method. In case of model misspecification, robustness may be achieved at the price of large imprecision, which would emphasize the need for more data or further model assumptions.

Statistical Inference of Accelerated Life Testing With Dependent Competing Failures Based on Copula Theory

2014 ◽  
Vol 63 (3) ◽  
pp. 764-780 ◽  
Author(s):  
Xiang Po Zhang ◽  
Jian Zhong Shang ◽  
Xun Chen ◽  
Chun Hua Zhang ◽  
Ya Shun Wang
Keyword(s):  
Statistical Inference ◽  
Accelerated Life Testing ◽  
Life Testing ◽  
Copula Theory ◽  
Accelerated Life

Reliability Test and Evaluation Analysis of Silicon Pressure Sensor under Vibration Stress

2011 ◽  
Vol 383-390 ◽  
pp. 6969-6974
Author(s):  
Li Qin ◽  
An Li Shi
Keyword(s):  
Pressure Sensor ◽  
Failure Modes ◽  
Accelerated Life Testing ◽  
Life Testing ◽  
Average Life ◽  
Test And Evaluation ◽  
Inverse Power Law ◽  
Accelerated Life ◽  
Testing Data ◽  
Vibration Stress

The model silicon pressure sensor was taken as the object; in this paper, we built failure physics equation of sensor under the vibration stress based on the failure modes and failure mechanism of pressure sensor, and using vibration stress as the acceleration factor to process accelerated life testing under invariableness stress. The results show that failure physics equation of sensor yields the inverse power law relationship. The estimated value of reliability character and accelerated life equation of sensor under the vibration stress was attained through analyzing testing data and the average life and reliable life of sensor has been attained through reliability evaluation.

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