Comparative Analysis of Reliability Optimization Using a New Approach of Redundancy Optimization Under Common Cause Failure

2018 ◽  
pp. 91-96
Author(s):  
Kalpana Hazarika ◽  
G. L. Pahuja
Keyword(s):  
Comparative Analysis ◽  
Reliability Optimization ◽  
New Approach ◽  
Common Cause ◽  
Common Cause Failure ◽  
Redundancy Optimization

Effect of Common Cause Failures on Redundancy Optimization

2014 ◽  
Vol 592-594 ◽  
pp. 2491-2495 ◽  
Author(s):  
Kalpana Hazarika ◽  
G.L. Pahuja
Keyword(s):  
Adverse Effect ◽  
Network Analysis ◽  
Complex Network ◽  
System Reliability ◽  
Reliability Optimization ◽  
Common Cause ◽  
Redundancy Allocation ◽  
Independent Components ◽  
Common Cause Failures ◽  
Redundancy Optimization

Redundancy allocation (RA) is one of the important approaches to improve system reliability by incorporating generally s-identical and s-independent components. However in the presence of common cause failures (CCF), a rarely studied problem as Redundancy optimization, the optimized system reliability may be adversely affected. In this paper the effect of CCF on Reliability Optimization using Redundancy Allocation has been expedited. The paper is implemented in two steps. Step1 involves obtaining the optimized solution of the problem using existing techniques. In the next step, modifications are done to compute optimized system reliability under CCF. The optimized reliability expression is modified to depict the effect of CCF. The work is extended to complex network analysis & implicit method has been used to do this work. The adverse effect of CCF on system reliability has also been demonstrated quantitatively with the help of example.

A NEW APPROACH FOR RELIABILITY ESTIMATION OF SYSTEMS WITH COMPLEX COMMON CAUSE FAILURES

1994 ◽  
Vol 01 (02) ◽  
pp. 291-298 ◽  
Author(s):  
ZHIJIE PAN ◽  
YASUO NONAKA
Keyword(s):  
Aging Process ◽  
Reliability Estimation ◽  
System Component ◽  
Stress Model ◽  
New Approach ◽  
Common Cause ◽  
Common Cause Failure ◽  
Common Cause Failures ◽  
The Common ◽  
Mutually Independent

This paper presents a new concept, complex common cause failure, for common cause failure analysis. A common stress model is developed, in which the common cause events are described as common stresses that will affect directly and simultaneously on the internal aging process of each system component and further change their failure probabilities, while the internal aging processes of components are still considered mutually independent. The common stress model can be used to estimate the reliability of systems with complex common cause failures.

Is mapping a part of common cause failure quantification?

Kerntechnik ◽  
2006 ◽  
Vol 71 (1-2) ◽  
pp. 41-49 ◽  
Author(s):  
J. K. Vaurio
Keyword(s):  
Common Cause ◽  
Common Cause Failure

ON COMPARATIVE ANALYSIS OF PERFORMANCE OPTIMIZATION METHODS OF MULTI-PUMP UNITS

2020 ◽  
pp. 23-28
Author(s):  
A.I. Glushchenko ◽  
M.Yu. Serov
Keyword(s):  
Energy Efficiency ◽  
Control System ◽  
Comparative Analysis ◽  
Performance Optimization ◽  
Optimization Methods ◽  
Online Optimization ◽  
New Approach ◽  
Advantages And Disadvantages ◽  
Analysis Of Performance

В статье рассматривается вопрос совершенствования системы управления параллельно-работающими насосными агрегатами с целью повышения энергоэффективности их работы. Проведено сравнение и выявление недостатков существующих методов решения рассматриваемой проблемы. Предложена идея нового подхода на базе онлайн оптимизации. The problem under consideration is improvement of the energy efficiency of a control system of parallel-running pump units. Known methods used to solve this problem are considered. Their advantages and disadvantages are shown. Finally, the idea of a new approach, which is based on online optimization, is proposed.

Sign in / Sign up

Export Citation Format

Share Document