Reliability graph with general gates: an intuitive and practical method for system reliability analysis

2002 ◽  
Vol 78 (3) ◽  
pp. 239-246 ◽  
Author(s):  
Man Cheol Kim ◽  
Poong Hyun Seong
Keyword(s):  
Reliability Analysis ◽  
System Reliability ◽  
Practical Method ◽  
System Reliability Analysis

scholarly journals Reliability-based Optimization of Maintenance Scheduling of Mechanical Components with the Method of Accelerated Tests

2020 ◽  
Vol 14 ◽  
Keyword(s):  
Reliability Analysis ◽  
System Reliability ◽  
Block Diagram ◽  
Practical Method ◽  
Accelerated Tests ◽  
Planning And Control ◽  
System Reliability Analysis ◽  
Short Period ◽  
In Series ◽  
Reliability Based Optimization

To have effective production planning and control, it is necessary to calculate the reliability and maintenance of a production system as a whole. Therefore, with today’s highly reliable components, we are often unable to obtain a reasonable amount of test data under normal use condition. For this reason, accelerated tests method is the reasonable procedure to be applied. It is used to determine the reliability of a product in a short period of time by accelerating the use environment. Application of the method of accelerated tests can save cost that we used to pay for overcoming the dilemma of not being able to estimate failure rates by testing directly at use conditions. In this paper, we propose a practical method for system reliability analysis. Among the existing methods for system reliability analysis, reliability graph theory is particularly attractive due to its intuitiveness, which is an extension of the conventional reliability graph. A function library was developed and designed to calculate the reliability-maintainability and availability of parallel series complex systems, whose functional description is translated into a block diagram that combines in series and parallel components studied. An Extensive analytical modeling study has been performed also to verify the effectiveness of the proposed technique.

scholarly journals ANALISIS KEANDALAN DAN SUSUT DAYA PENYULANG TABANAN SETELAH REKONFIGURASI

2018 ◽  
Vol 5 (2) ◽  
pp. 139
Author(s):  
Salman Al Farisi ◽  
Rukmi Sari Hartati ◽  
I Wayan Sukerayasa
Keyword(s):  
Reliability Analysis ◽  
System Reliability ◽  
Reliability Index ◽  
Power Loss ◽  
Electrical System ◽  
Reliable System ◽  
Global Era ◽  
System Reliability Analysis ◽  
Interference Frequency ◽  
Index Value

The need for electricity in this global era is increasing, so that a more reliable electrical system is needed. A reliable system cannot be separated from interference, so there needs to be a system reliability analysis and power loss to the feeder by configuring the network. This research was conducted to find the reliability index value in the form of interference frequency and duration of interference (SAIFI and SAIDI). In one Tabanan feeder the results obtained exceed the standard so reconfiguration is performed Based on the analysis obtained before reconfiguration, the reliability index for SAIFI is 6,7456 (failure / year) and SAIDI is 11,4767 (hour / year) and power loss by 6,27 %. After reconfiguration of Tabanan feeder, the reliability index was better, for SAIFI is 5.2475 (disturbance / year) and SAIDI is 9,8798 (hour / year), the power loss was 2.82%. Sanggulan feeder is a new feeder reconfiguration result from Tabanan feeder, where the analysis was carried out to find out the reliability index of Sanggulan feeder, it was obtained the SAIFI value of 4.5753 (disturbance / year) and SAIDI of 9.5297 (hour / year) and power loss of 4,80%.

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