Reliability Analysis for Dependent Competing Failure Processes with Two-stage Degradation and External Shocks

2020 ◽  
Author(s):  
Yukun Wang ◽  
Guanqi Fang ◽  
Rong Pan
Keyword(s):  
Reliability Analysis ◽  
External Shocks ◽  
Two Stage

Fuzzy Reliablity Optimization Design of Two Stage Planetary Gear System by Genetic Algorithm Based on Predatory Search Strategy

2011 ◽  
Vol 403-408 ◽  
pp. 743-747 ◽  
Author(s):  
Chun Guang Wang
Keyword(s):  
Genetic Algorithm ◽  
Mathematical Model ◽  
Reliability Analysis ◽  
Optimization Design ◽  
Search Strategy ◽  
Planetary Gear ◽  
Transmission Efficiency ◽  
Fuzzy Reliability ◽  
Two Stage ◽  
Planetary Gear Sets

Fuzzy reliability analysis is regared as the theoretical basis. It takes the minimum volume and the maximum transmission efficiency as objective function．Then the mathematical model of fuzzy reliability optimal design on two stage planetary gear sets is set up. Genetic algorithm based on predatory search strategy is used to solve the fuzzy reliability mathematical model. Examples of calculation shows that the volume is decrease by 15%. The results imply the fuzzy reliability analysis is more scientific and reasonable in designing two stage planetary gear sets by using fuzzy reliability analysis.

Reliability analysis of k-out-of-n systems based on a grouping of components

2019 ◽  
Vol 51 (2) ◽  
pp. 339-357 ◽  
Author(s):  
Weiyong Ding ◽  
Rui Fang ◽  
Peng Zhao
Keyword(s):  
Monte Carlo Simulation ◽  
Monte Carlo ◽  
Reliability Analysis ◽  
System Reliability ◽  
Decisive Factor ◽  
Two Stage ◽  
Simulation Experiments ◽  
Stage Grouping ◽  
The Impact ◽  
Theoretical Results

AbstractIn this paper we treat a two-stage grouping procedure of building a k-out-of-n system from several clusters of components. We use a static framework in which the component reliabilities are fixed. Under such a framework, we address the impact of the selecting strategies, the sampling probabilities, and the component reliabilities on the constructed system’s reliability. An interesting finding is that the level of component reliabilities could be identified as a decisive factor in determining how the selecting strategies and the component reliabilities affect the system reliability. The new results generalize and extend those established earlier in the literature such as Di Crescenzo and Pellerey (2011), Hazra and Nanda (2014), Navarro, Pellerey, and Di Crescenzo (2015), and Hazra, Finkelstein, and Cha (2017). Several Monte Carlo simulation experiments are provided to illustrate the theoretical results.

scholarly journals Hybrid Two-Stage Eagle Startegy for Reliability Analysis

2019 ◽  
Vol 52 (11) ◽  
pp. 146-151
Author(s):  
A. Hraiba ◽  
A. Touil ◽  
A. Mousrij
Keyword(s):  
Reliability Analysis ◽  
Two Stage
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