Optimal time plan in accelerated degradation testing

Shat, Helmi; Schwabe, Rainer

doi:10.1080/03610926.2022.2063892

Cited by 3 publications

(2 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…They obtained the optimal sample allocation for each stress level and determined the effect of stress level on the objective function. Shat et al [44] proposed the C-optimal criterion for the optimal design of constant stress ADT when the degradation path follows a linear mixed effect model. The optimal design is primarily based on time variables rather than commonly considered stress variables.…”

Section: Research Status Of Adt Design and Optimizationmentioning

confidence: 99%

A literature review on the planning and analysis of accelerated degradation testing for mechanical products

Yu,

Hao,

Tong

et al. 2024

ACE

View full text Add to dashboard Cite

High reliability and long life are typical requirements for mechanical products. The performance requirements of mechanical products are increasing as science and technology develop, and the environment and working stress they bear are becoming more diverse. This issue has become one of the bottlenecks for mechanical products in lifespan and reliability generally. The aim of this study is to categorize, examine, and review the most applicable accelerated testing methods for mechanical products. The research status of accelerated modeling methods, statistical analysis, and design optimization of accelerated degradation testing(ADT) technology are reviewed. On the basis of literature analysis, the deficiencies and possible development directions of ADT were summarized and prospected. This work is anticipated to serve as a reference and provide important insights into the reliability of mechanical products.

show abstract

Section: Research Status Of Adt Design and Optimizationmentioning

confidence: 99%

A literature review on the planning and analysis of accelerated degradation testing for mechanical products

Yu,

Hao,

Tong

et al. 2024

ACE

View full text Add to dashboard Cite

show abstract

“…As deterioration is a result of accumulated damage over time, ADTs are commonly employed to gather feature information and their degeneration data is associated with lifespan. 4 Based on varying stress loading techniques, ADT can be classified into different types: CSADT, [5][6][7] step-stress ADT (SSADT), [8][9][10] and progressive-stress ADT (PSADT). 11 The convenient operation of CSADT has made it a widely used tool in aerospace, engineering, and other industries.…”

Section: Introductionmentioning

confidence: 99%

Optimal design of constant‐stress accelerated degradation tests based on the Wiener process with manufacturing batches heterogeneity and individual differences

Li,

Gu,

Chen

et al. 2024

Quality & Reliability Eng

View full text Add to dashboard Cite

The use of Constant‐stress accelerated degradation tests (CSADT) modeling is an effective way to assess the reliability of products. However, when conducting reliability experiments, the data collected may come from various sources such as different manufacturing batches, equipment, and operators. This can result in reduced accuracy of the test evaluations. In this research paper, we propose optimal designs for the Wiener constant‐stress accelerated degradation model that take into account the heterogeneity of manufacturing batches and individual differences. Our goal is to minimize the variability of the mean time to failure (MTTF) while working within a specified budget, test time, and available test units. To achieve this, we utilize particle swarm optimization (PSO) to find the best solution based on a complex objective function. We also compare our model with others using degradation data from LEDs, showing that our model has a better goodness‐of‐fit. Finally, we present examples of optimal CSADT plans under different constraints and conduct sensitivity analysis.

show abstract

Optimal Stress Levels in Accelerated Degradation Testing for Various Degradation Models

Shat

Schwabe

2022

Mindful Topics on Risk Analysis and Design of Experiments

View full text Add to dashboard Cite

Optimal time plan in accelerated degradation testing

Cited by 3 publications

References 15 publications

A literature review on the planning and analysis of accelerated degradation testing for mechanical products

A literature review on the planning and analysis of accelerated degradation testing for mechanical products

Optimal design of constant‐stress accelerated degradation tests based on the Wiener process with manufacturing batches heterogeneity and individual differences

Optimal Stress Levels in Accelerated Degradation Testing for Various Degradation Models

Contact Info

Product

Resources

About