modelLimitedCabinAltitudeRateOfChange
Requirement: The cabin altitude rate of change is limited by the pressure bump duration domain to ensure passenger comfort
Extends from Modelica.Icons.Example (Icon for runnable examples).
Information
This example demonstrates the modeling and verification of the following aircraft requirement:
Requirement:
The cabin altitude rate of change should not be out of the cabin pressure domain, more than 5s:
This requirement can be modelled with the ChecksInFixedWindow.WithinDomain and ChecksInFixedWindow.MaxDuration blocks.
Setup of this example:
results in (the first figure shows the domain at the end of the simulation)
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| simulation result |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| Modelica_Requirements.Verify.PrintViolations | printViolations | ||
| Modelica_Requirements.Verify.Requirement | R_FreshECSFlow | ||
| Modelica_Requirements.SignalAnalysis.ExactDerivative | derP | ||
| Modelica.Blocks.Sources.ContinuousClock | clock | ||
| Modelica_Requirements.ChecksInFixedWindow.MaxDuration | maxDuration1 | ||
| Modelica_Requirements.ChecksInFixedWindow.WithinDomain | withinDomain1 | ||
| Modelica_Requirements.Sources.BooleanConstant | const1 | ||
| Sources.RealExpression | PressureAltitude | ||
| Modelica.Blocks.Routing.Multiplex2 | multiplex | ||
| LogicalBlocks.PropertyToBoolean | toBoolean | ||
| Modelica.Blocks.MathBoolean.Not | not1 |