Related Topics:

Model Window

Models

Models are resources that are available for use throughout the project and can be managed via the Resource Manager. Models can be defined manually or they can be created by publishing results from an analysis in a Synthesis-enabled application. For example, you could publish results from a BlockSim diagram or from a Weibull++ life data analysis as a model for use anywhere within the project.

A model that was created by publishing results from an analysis can be viewed in the Synthesis Viewer window, which displays the information about the model but does not allow you to edit it. The Synthesis Viewer window appears when you double-click the model’s name in any location where it is used (e.g., in a URD, in a spare part pool, etc.). It can also be accessed from the Models page of the Resource Manager by selecting the model and choosing Home > Edit > View or by double-clicking the model.

To edit a model that was published from an analysis, you must return to the original data source, make the necessary changes, recalculate and republish the model so it is once again synchronized with the original analysis.

IMPORTANT: Re-publishing a model changes the resource, which is available for use throughout the project. This will cause the model to be changed everywhere that it is used.

You can also manually define a model via the Model window, which can be accessed from the Models page of the Resource Manager by choosing Home > Edit > New, by selecting a model that was manually defined and choosing Home > Edit > View or by double-clicking a model that was manually defined.  

 There are six categories of models, each serving a specific purpose:

These models are used by URDs and by switches in BlockSim.

In addition, each model can be one of two types:

Applying a model that uses a fixed probability or duration value to a block causes the block to be considered “static.” A static block can be interpreted either as a block with a reliability value that is known only at a given time (but the block's entire failure distribution is unknown) or as a block with a probability of failure that is constant with time. Systems can contain static blocks, time-dependent blocks or a mixture of the two.

The available distributions and their required inputs are as follows:

Notice that the number of the selected subpopulation appears next to each parameter name to indicate the subpopulation the parameter applies to.

 

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