Series-Parallel-Combo1.PPT Building Series-Parallel Combo Models Last revised 12/06/2006

Series-Parallel-Combo1.PPT

Building Series-Parallel Combo ModelsLast revised 12/06/2006


ASENT RBD Analysis – Series-Parallel Combo Models

ASENT’s RBD Analysis tool supports a number of ASENT’s RBD Analysis tool supports a number of different model types. Elements can be modeled in different model types. Elements can be modeled in series, parallel, series-parallel combinations, and series, parallel, series-parallel combinations, and complex active or standby redundancies.complex active or standby redundancies.

This presentation will focus on building This presentation will focus on building series-parallel series-parallel combinationscombinations. For more details on RBD Analysis click . For more details on RBD Analysis click on the link below, and select Reliability Modeling to on the link below, and select Reliability Modeling to access a 20 page help file in PDF format.access a 20 page help file in PDF format.

http://www.raytheoneagle.com/asent/tutorial/help.htm

http://www.raytheoneagle.com/asent/tutorial/help.htm


ASENT RBD Analysis – Series-Parallel Models

This tutorial assumes that you have already built a This tutorial assumes that you have already built a product tree structure for your project and that failure product tree structure for your project and that failure rates have been calculated and are current.rates have been calculated and are current.

If you need help with this please refer to the If you need help with this please refer to the Introduction tutorial.Introduction tutorial.


Step 1 – Select Type of Analysis

Two types of RBD Two types of RBD analysis are analysis are available: 1) available: 1) Mission Reliability, Mission Reliability, and 2) Mission and 2) Mission Reliability with Reliability with Repair. Repair.

For this tutorial, For this tutorial, select Mission select Mission Reliability.Reliability.


Step 2 – RBD Analysis Utility Menu

From the RBD From the RBD Analysis Utility Analysis Utility menu, set all of the menu, set all of the mission times to 8 mission times to 8 hours.hours.


Step 3 – Selecting the RBD Analysis Tab

The default model The default model is to model the is to model the blocks in series. blocks in series. When you click on When you click on the RBD Analysis the RBD Analysis tab in the tab in the Reliability Reliability Manager, it will Manager, it will display the display the associated model associated model for the item for the item selected. Click on selected. Click on the Edit option to the Edit option to change or refine change or refine the model.the model.


Step 4 – Editing and Refining the Model

This figure shows This figure shows the reliability the reliability worksheet for the worksheet for the selected item.selected item.

We will change the We will change the model type to model type to Series/Parallel by Series/Parallel by clicking on the clicking on the ‘Change Model ‘Change Model Type’ button.Type’ button.


Step 5 – Specify Parallel Elements

Select the parallel Select the parallel elements. Here, we elements. Here, we click on Power1 click on Power1 and CTRL-click on and CTRL-click on Power2 to highlight Power2 to highlight these two elements. these two elements. When we click on When we click on the OK button we the OK button we are prompted for are prompted for the number of the number of required elements.required elements.

In this example, we In this example, we say that out of the 2 say that out of the 2 parallel elements in parallel elements in our model that 1 is our model that 1 is required.required.


Step 6 – Select the View Diagram Button

Click on the View Click on the View Diagram button to Diagram button to view the new view the new Reliability Block Reliability Block Diagram.Diagram.


Step 7 – Generating Reports

To generate a report, To generate a report, right-click on the item of right-click on the item of interest and select interest and select Reports | RBD Analysis.Reports | RBD Analysis.


Generating Reports (Continued)

The RBD Analysis The RBD Analysis report allows you to report allows you to report on just the item report on just the item that was selected or the that was selected or the entire subtree. Block entire subtree. Block diagrams can be diagrams can be included or omitted included or omitted depending on the user’s depending on the user’s preference.preference.

Select the report options, Select the report options, as desired, and click on as desired, and click on the OK button.the OK button.


Generating Reports – Sample Report

This concludes a brief tutorial on building series-parallel This concludes a brief tutorial on building series-parallel models. For more details, please refer to the other RBD models. For more details, please refer to the other RBD Analysis tutorials.Analysis tutorials.

Documents

Series-Parallel-Combo1.PPT Building Series-Parallel Combo Models Last revised 12/06/2006