setPhugoidRequirementFunctions

Class: Aero.FixedWing.Specification
Namespace: Aero

Set list of custom requirement functions for phugoid modes

Since R2025a

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Syntax

specificationOut = setPhugoidRequirementFunctions(specificationIn,customFunction)

Description

specificationOut = setPhugoidRequirementFunctions(specificationIn,customFunction) sets a list of one or more custom requirement functions for phugoid modes.

Input Arguments

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Aero.FixedWing.Specification object, specified as a scalar.

List of one or more custom requirements functions, specified as a scalar or cell array of function handles. The functions must have these inputs:

  • zeta — Damping ratio.

  • wn — Natural frequency.

  • wd — Damped natural frequency.

  • T2 — Time to double or negative time to halve.

The functions must return a logical, true (1) or false (0).

Example: @(zeta,wn,wd,T2) wn*wd >= 0.1 is an example of one function

Example: {@(zeta,wn,wd,T2) wn*wd >= 0.1,@(zeta,wn,wd,T2) zeta*wd >= 0.07} is an example of a cell array of functions

Output Arguments

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Aero.FixedWing.Specification object, returned as the modified Aero.FixedWing.Specification object.

Examples

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Open Live Script

Set a list custom requirement functions for phugoid mode.

Create an Aero.FixedWing.Specification object. 

spec = Aero.FixedWing.Specification;

Create the list of custom phugoid mode requirement functions phugoidFcnlist.

phugoidFcnlist = {@(zeta,wn,wd,T2)wn*wd>=0.1,...
   @(zeta,wn,wd,T2)zeta*wd>=0.07}
phugoidFcnlist=1×2 cell array
    {@(zeta,wn,wd,T2)wn*wd>=0.1}    {@(zeta,wn,wd,T2)zeta*wd>=0.07}

Add the phugoidFcnlist function list to the Aero.FixedWing.Specification object.

spec = setPhugoidRequirementFunctions(spec,phugoidFcnlist)
spec = 
  Specification with properties:

           Phugoid: [1×1 Aero.FixedWing.FlyingQuality.PhugoidMode]
       ShortPeriod: [1×1 Aero.FixedWing.FlyingQuality.ShortPeriodMode]
         DutchRoll: [1×1 Aero.FixedWing.FlyingQuality.DutchRollMode]
            Spiral: [1×1 Aero.FixedWing.FlyingQuality.SpiralMode]
    RollSubsidence: [1×1 Aero.FixedWing.FlyingQuality.RollSubsidenceMode]
        Properties: [1×1 Aero.Aircraft.Properties]

Version History

Introduced in R2025a

See Also