Complex Systems RBD: Difference between revisions
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Kate Racaza (talk | contribs) (Created page with '{{Reference Example|{{Banner BlockSim Reference Examples}}}} This example validates the results for complex systems in BlockSim's analytical and simulation diagrams. {{Referen…') |
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Some systems are made up of independent series, parallel, series, series-parallel, parallel-series, k-out-of-n, and redundant subsystems. The reliability of such an engineering system (presented in Figure 4.17 on page 85) is computed at 600 hours of mission time. Each component has an exponential life distribution model with a different lambda. Failures rates are presented in table below. | Some systems are made up of independent series, parallel, series, series-parallel, parallel-series, k-out-of-n, and redundant subsystems. The reliability of such an engineering system (presented in Figure 4.17 on page 85 of the book) is computed at 600 hours of mission time. Each component has an exponential life distribution model with a different lambda. Failures rates are presented in the table below. | ||
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This example is solved by the system reduction method, which involves collapsing a system sequentially into the foregoing susbsystems, each represented by an equivalent reliability block, until the entire system is represented by a single reliability block. The system reliability is calculated as 93.67%. | This example is solved by the system reduction method, which involves collapsing a system sequentially into the foregoing susbsystems, each represented by an equivalent reliability block, until the entire system is represented by a single reliability block. The system reliability is calculated as 93.67%. | ||
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In BlockSim, the engineering system RBD is configured as shown below. | In BlockSim, the engineering system RBD is configured as shown below. | ||
[[Image:complex_rbd.png|center| | [[Image:complex_rbd.png|center|650px]] | ||
Each component is modeled using an exponential distribution with the corresponding failure rates | Each component is modeled using an exponential distribution with the corresponding lambda (failure rates) given in the table. | ||
'''Analytical Proof''' | '''Analytical Proof''' | ||
The reliability of the system at a | The reliability of the system at a mission time of 600 hours is calculated in the QCP as 93.68%. The difference of 0.01% is due to rounding errors and is negligible. | ||
[[Image:complex_qcp.png|center|500px]] | [[Image:complex_qcp.png|center|500px]] | ||
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[[Image:complex_simqcp.png|center|500px]] | [[Image:complex_simqcp.png|center|500px]] | ||
Latest revision as of 16:53, 20 August 2015
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