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 # `AcousticTransferAdmittanceMatrix`

 Last update: 16.07.2025 

<a id="ansys.mechanical.stubs.v241.Ansys.ACT.Automation.Mechanical.BoundaryConditions.AcousticTransferAdmittanceMatrix"></a>

#### *class* Ansys.ACT.Automation.Mechanical.BoundaryConditions.AcousticTransferAdmittanceMatrix

Bases: [`object`](https://docs.python.org/3/library/functions.html#object)

Defines a AcousticTransferAdmittanceMatrix.

<a id="overview"></a>

## Overview

### Methods

NameDescription[`Activate`](#AcousticTransferAdmittanceMatrix.Activate)Activate the current object.[`AddComment`](#AcousticTransferAdmittanceMatrix.AddComment)Creates a new child Comment.[`AddFigure`](#AcousticTransferAdmittanceMatrix.AddFigure)Creates a new child Figure.[`AddImage`](#AcousticTransferAdmittanceMatrix.AddImage)Creates a new child Image.[`CopyTo`](#AcousticTransferAdmittanceMatrix.CopyTo)Copies all visible properties from this object to another.[`CreateParameter`](#AcousticTransferAdmittanceMatrix.CreateParameter)Creates a new parameter for a Property.[`Delete`](#AcousticTransferAdmittanceMatrix.Delete)Run the Delete action.[`Duplicate`](#AcousticTransferAdmittanceMatrix.Duplicate)Creates a copy of the current DataModelObject.[`GetChildren`](#AcousticTransferAdmittanceMatrix.GetChildren)Gets the list of children, filtered by type.[`GetParameter`](#AcousticTransferAdmittanceMatrix.GetParameter)Gets the parameter corresponding to the given property.[`GroupAllSimilarChildren`](#AcousticTransferAdmittanceMatrix.GroupAllSimilarChildren)Run the GroupAllSimilarChildren action.[`GroupSimilarObjects`](#AcousticTransferAdmittanceMatrix.GroupSimilarObjects)Run the GroupSimilarObjects action.[`PromoteToNamedSelection`](#AcousticTransferAdmittanceMatrix.PromoteToNamedSelection)Run the PromoteToNamedSelection action.[`PropertyByAPIName`](#AcousticTransferAdmittanceMatrix.PropertyByAPIName)Get a property by its API name.[`PropertyByName`](#AcousticTransferAdmittanceMatrix.PropertyByName)Get a property by its unique name.[`RemoveParameter`](#AcousticTransferAdmittanceMatrix.RemoveParameter)Removes the parameter from the parameter set corresponding to the given property.### Properties

NameDescription[`Alpha1Imag`](#AcousticTransferAdmittanceMatrix.Alpha1Imag)Gets or sets the Alpha1Imag.[`Alpha1Real`](#AcousticTransferAdmittanceMatrix.Alpha1Real)Gets or sets the Alpha1Real.[`Alpha2Imag`](#AcousticTransferAdmittanceMatrix.Alpha2Imag)Gets or sets the Alpha2Imag.[`Alpha2Real`](#AcousticTransferAdmittanceMatrix.Alpha2Real)Gets or sets the Alpha2Real.[`Children`](#AcousticTransferAdmittanceMatrix.Children)Gets the list of children.[`Comments`](#AcousticTransferAdmittanceMatrix.Comments)Gets the list of associated comments.[`DataModelObjectCategory`](#AcousticTransferAdmittanceMatrix.DataModelObjectCategory)Gets the current DataModelObject’s category.[`DynamicViscosity`](#AcousticTransferAdmittanceMatrix.DynamicViscosity)Gets or sets the DynamicViscosity.[`Figures`](#AcousticTransferAdmittanceMatrix.Figures)Gets the list of associated figures.[`GridPeriod`](#AcousticTransferAdmittanceMatrix.GridPeriod)Gets or sets the GridPeriod.[`HoleRadius`](#AcousticTransferAdmittanceMatrix.HoleRadius)Gets or sets the HoleRadius.[`Images`](#AcousticTransferAdmittanceMatrix.Images)Gets the list of associated images.[`InternalObject`](#AcousticTransferAdmittanceMatrix.InternalObject)Gets the internal object. For advanced usage only.[`MassDensity`](#AcousticTransferAdmittanceMatrix.MassDensity)Gets or sets the MassDensity.[`Port1`](#AcousticTransferAdmittanceMatrix.Port1)Gets or sets the Port1.[`Port2`](#AcousticTransferAdmittanceMatrix.Port2)Gets or sets the Port2.[`Properties`](#AcousticTransferAdmittanceMatrix.Properties)Gets the list of properties for this object.[`RatioOfInnerAndOuterRadius`](#AcousticTransferAdmittanceMatrix.RatioOfInnerAndOuterRadius)Gets or sets the RatioOfInnerAndOuterRadius.[`ReadOnly`](#AcousticTransferAdmittanceMatrix.ReadOnly)Gets or sets the ReadOnly.[`SharedRefBody`](#AcousticTransferAdmittanceMatrix.SharedRefBody)Gets or sets the SharedRefBody.[`StructureThickness`](#AcousticTransferAdmittanceMatrix.StructureThickness)Gets or sets the StructureThickness.[`Suppressed`](#AcousticTransferAdmittanceMatrix.Suppressed)Gets or sets the Suppressed.[`TransferAdmittanceModel`](#AcousticTransferAdmittanceMatrix.TransferAdmittanceModel)Gets or sets the TransferAdmittanceModel.[`VisibleProperties`](#AcousticTransferAdmittanceMatrix.VisibleProperties)Gets the list of properties that are visible for this object.[`Y11Imag`](#AcousticTransferAdmittanceMatrix.Y11Imag)Gets or sets the Y11Imag.[`Y11Real`](#AcousticTransferAdmittanceMatrix.Y11Real)Gets or sets the Y11Real.[`Y12Imag`](#AcousticTransferAdmittanceMatrix.Y12Imag)Gets or sets the Y12Imag.[`Y12Real`](#AcousticTransferAdmittanceMatrix.Y12Real)Gets or sets the Y12Real.[`Y21Imag`](#AcousticTransferAdmittanceMatrix.Y21Imag)Gets or sets the Y21Imag.[`Y21Real`](#AcousticTransferAdmittanceMatrix.Y21Real)Gets or sets the Y21Real.[`Y22Imag`](#AcousticTransferAdmittanceMatrix.Y22Imag)Gets or sets the Y22Imag.[`Y22Real`](#AcousticTransferAdmittanceMatrix.Y22Real)Gets or sets the Y22Real.<a id="property-detail"></a>

## Property detail

<a id="AcousticTransferAdmittanceMatrix.Alpha1Imag"></a>

### *property* AcousticTransferAdmittanceMatrix.Alpha1Imag *: [Ansys.ACT.Mechanical.Fields.Field](../../../Mechanical/Fields/Field.md#ansys.mechanical.stubs.v241.Ansys.ACT.Mechanical.Fields.Field) | [None](https://docs.python.org/3/library/constants.html#None)*

Gets or sets the Alpha1Imag.

<a id="AcousticTransferAdmittanceMatrix.Alpha1Real"></a>

### *property* AcousticTransferAdmittanceMatrix.Alpha1Real *: [Ansys.ACT.Mechanical.Fields.Field](../../../Mechanical/Fields/Field.md#ansys.mechanical.stubs.v241.Ansys.ACT.Mechanical.Fields.Field) | [None](https://docs.python.org/3/library/constants.html#None)*

Gets or sets the Alpha1Real.

<a id="AcousticTransferAdmittanceMatrix.Alpha2Imag"></a>

### *property* AcousticTransferAdmittanceMatrix.Alpha2Imag *: [Ansys.ACT.Mechanical.Fields.Field](../../../Mechanical/Fields/Field.md#ansys.mechanical.stubs.v241.Ansys.ACT.Mechanical.Fields.Field) | [None](https://docs.python.org/3/library/constants.html#None)*

Gets or sets the Alpha2Imag.

<a id="AcousticTransferAdmittanceMatrix.Alpha2Real"></a>

### *property* AcousticTransferAdmittanceMatrix.Alpha2Real *: [Ansys.ACT.Mechanical.Fields.Field](../../../Mechanical/Fields/Field.md#ansys.mechanical.stubs.v241.Ansys.ACT.Mechanical.Fields.Field) | [None](https://docs.python.org/3/library/constants.html#None)*

Gets or sets the Alpha2Real.

<a id="AcousticTransferAdmittanceMatrix.Children"></a>

### *property* AcousticTransferAdmittanceMatrix.Children *: List\[Ansys.Mechanical.DataModel.Interfaces.IDataModelObject\] | [None](https://docs.python.org/3/library/constants.html#None)*

Gets the list of children.

<a id="AcousticTransferAdmittanceMatrix.Comments"></a>

### *property* AcousticTransferAdmittanceMatrix.Comments *: Iterable\[[Ansys.ACT.Automation.Mechanical.Comment](../Comment.md#ansys.mechanical.stubs.v241.Ansys.ACT.Automation.Mechanical.Comment)\] | [None](https://docs.python.org/3/library/constants.html#None)*

Gets the list of associated comments.

<a id="AcousticTransferAdmittanceMatrix.DataModelObjectCategory"></a>

### *property* AcousticTransferAdmittanceMatrix.DataModelObjectCategory *: [Ansys.Mechanical.DataModel.Enums.DataModelObjectCategory](../../../../Mechanical/DataModel/Enums/DataModelObjectCategory.md#ansys.mechanical.stubs.v241.Ansys.Mechanical.DataModel.Enums.DataModelObjectCategory) | [None](https://docs.python.org/3/library/constants.html#None)*

Gets the current DataModelObject’s category.

<a id="AcousticTransferAdmittanceMatrix.DynamicViscosity"></a>

### *property* AcousticTransferAdmittanceMatrix.DynamicViscosity *: [Ansys.ACT.Mechanical.Fields.Field](../../../Mechanical/Fields/Field.md#ansys.mechanical.stubs.v241.Ansys.ACT.Mechanical.Fields.Field) | [None](https://docs.python.org/3/library/constants.html#None)*

Gets or sets the DynamicViscosity.

<a id="AcousticTransferAdmittanceMatrix.Figures"></a>

### *property* AcousticTransferAdmittanceMatrix.Figures *: Iterable\[[Ansys.ACT.Automation.Mechanical.Figure](../Figure.md#ansys.mechanical.stubs.v241.Ansys.ACT.Automation.Mechanical.Figure)\] | [None](https://docs.python.org/3/library/constants.html#None)*

Gets the list of associated figures.

<a id="AcousticTransferAdmittanceMatrix.GridPeriod"></a>

### *property* AcousticTransferAdmittanceMatrix.GridPeriod *: [Ansys.ACT.Mechanical.Fields.Field](../../../Mechanical/Fields/Field.md#ansys.mechanical.stubs.v241.Ansys.ACT.Mechanical.Fields.Field) | [None](https://docs.python.org/3/library/constants.html#None)*

Gets or sets the GridPeriod.

<a id="AcousticTransferAdmittanceMatrix.HoleRadius"></a>

### *property* AcousticTransferAdmittanceMatrix.HoleRadius *: [Ansys.ACT.Mechanical.Fields.Field](../../../Mechanical/Fields/Field.md#ansys.mechanical.stubs.v241.Ansys.ACT.Mechanical.Fields.Field) | [None](https://docs.python.org/3/library/constants.html#None)*

Gets or sets the HoleRadius.

<a id="AcousticTransferAdmittanceMatrix.Images"></a>

### *property* AcousticTransferAdmittanceMatrix.Images *: Iterable\[[Ansys.ACT.Automation.Mechanical.Image](../Image.md#ansys.mechanical.stubs.v241.Ansys.ACT.Automation.Mechanical.Image)\] | [None](https://docs.python.org/3/library/constants.html#None)*

Gets the list of associated images.

<a id="AcousticTransferAdmittanceMatrix.InternalObject"></a>

### *property* AcousticTransferAdmittanceMatrix.InternalObject *: Ansys.Common.Interop.DSObjectsAuto.IDSLoadAuto | [None](https://docs.python.org/3/library/constants.html#None)*

Gets the internal object. For advanced usage only.

<a id="AcousticTransferAdmittanceMatrix.MassDensity"></a>

### *property* AcousticTransferAdmittanceMatrix.MassDensity *: [Ansys.ACT.Mechanical.Fields.Field](../../../Mechanical/Fields/Field.md#ansys.mechanical.stubs.v241.Ansys.ACT.Mechanical.Fields.Field) | [None](https://docs.python.org/3/library/constants.html#None)*

Gets or sets the MassDensity.

<a id="AcousticTransferAdmittanceMatrix.Port1"></a>

### *property* AcousticTransferAdmittanceMatrix.Port1 *: [Ansys.ACT.Automation.Mechanical.BoundaryConditions.AcousticPort](AcousticPort.md#ansys.mechanical.stubs.v241.Ansys.ACT.Automation.Mechanical.BoundaryConditions.AcousticPort) | [None](https://docs.python.org/3/library/constants.html#None)*

Gets or sets the Port1.

<a id="AcousticTransferAdmittanceMatrix.Port2"></a>

### *property* AcousticTransferAdmittanceMatrix.Port2 *: [Ansys.ACT.Automation.Mechanical.BoundaryConditions.AcousticPort](AcousticPort.md#ansys.mechanical.stubs.v241.Ansys.ACT.Automation.Mechanical.BoundaryConditions.AcousticPort) | [None](https://docs.python.org/3/library/constants.html#None)*

Gets or sets the Port2.

<a id="AcousticTransferAdmittanceMatrix.Properties"></a>

### *property* AcousticTransferAdmittanceMatrix.Properties *: [tuple](https://docs.python.org/3/library/stdtypes.html#tuple)\[Ansys.ACT.Automation.Mechanical.Property\] | [None](https://docs.python.org/3/library/constants.html#None)*

Gets the list of properties for this object.

<a id="AcousticTransferAdmittanceMatrix.RatioOfInnerAndOuterRadius"></a>

### *property* AcousticTransferAdmittanceMatrix.RatioOfInnerAndOuterRadius *: [Ansys.ACT.Mechanical.Fields.Field](../../../Mechanical/Fields/Field.md#ansys.mechanical.stubs.v241.Ansys.ACT.Mechanical.Fields.Field) | [None](https://docs.python.org/3/library/constants.html#None)*

Gets or sets the RatioOfInnerAndOuterRadius.

<a id="AcousticTransferAdmittanceMatrix.ReadOnly"></a>

### *property* AcousticTransferAdmittanceMatrix.ReadOnly *: [bool](https://docs.python.org/3/library/functions.html#bool) | [None](https://docs.python.org/3/library/constants.html#None)*

Gets or sets the ReadOnly.

<a id="AcousticTransferAdmittanceMatrix.SharedRefBody"></a>

### *property* AcousticTransferAdmittanceMatrix.SharedRefBody *: [Ansys.ACT.Automation.Mechanical.Body](../Body.md#ansys.mechanical.stubs.v241.Ansys.ACT.Automation.Mechanical.Body) | [None](https://docs.python.org/3/library/constants.html#None)*

Gets or sets the SharedRefBody.

<a id="AcousticTransferAdmittanceMatrix.StructureThickness"></a>

### *property* AcousticTransferAdmittanceMatrix.StructureThickness *: [Ansys.ACT.Mechanical.Fields.Field](../../../Mechanical/Fields/Field.md#ansys.mechanical.stubs.v241.Ansys.ACT.Mechanical.Fields.Field) | [None](https://docs.python.org/3/library/constants.html#None)*

Gets or sets the StructureThickness.

<a id="AcousticTransferAdmittanceMatrix.Suppressed"></a>

### *property* AcousticTransferAdmittanceMatrix.Suppressed *: [bool](https://docs.python.org/3/library/functions.html#bool) | [None](https://docs.python.org/3/library/constants.html#None)*

Gets or sets the Suppressed.

<a id="AcousticTransferAdmittanceMatrix.TransferAdmittanceModel"></a>

### *property* AcousticTransferAdmittanceMatrix.TransferAdmittanceModel *: [Ansys.Mechanical.DataModel.Enums.TransferAdmittanceModelType](../../../../Mechanical/DataModel/Enums/TransferAdmittanceModelType.md#ansys.mechanical.stubs.v241.Ansys.Mechanical.DataModel.Enums.TransferAdmittanceModelType) | [None](https://docs.python.org/3/library/constants.html#None)*

Gets or sets the TransferAdmittanceModel.

<a id="AcousticTransferAdmittanceMatrix.VisibleProperties"></a>

### *property* AcousticTransferAdmittanceMatrix.VisibleProperties *: [tuple](https://docs.python.org/3/library/stdtypes.html#tuple)\[Ansys.ACT.Automation.Mechanical.Property\] | [None](https://docs.python.org/3/library/constants.html#None)*

Gets the list of properties that are visible for this object.

<a id="AcousticTransferAdmittanceMatrix.Y11Imag"></a>

### *property* AcousticTransferAdmittanceMatrix.Y11Imag *: [Ansys.ACT.Mechanical.Fields.Field](../../../Mechanical/Fields/Field.md#ansys.mechanical.stubs.v241.Ansys.ACT.Mechanical.Fields.Field) | [None](https://docs.python.org/3/library/constants.html#None)*

Gets or sets the Y11Imag.

<a id="AcousticTransferAdmittanceMatrix.Y11Real"></a>

### *property* AcousticTransferAdmittanceMatrix.Y11Real *: [Ansys.ACT.Mechanical.Fields.Field](../../../Mechanical/Fields/Field.md#ansys.mechanical.stubs.v241.Ansys.ACT.Mechanical.Fields.Field) | [None](https://docs.python.org/3/library/constants.html#None)*

Gets or sets the Y11Real.

<a id="AcousticTransferAdmittanceMatrix.Y12Imag"></a>

### *property* AcousticTransferAdmittanceMatrix.Y12Imag *: [Ansys.ACT.Mechanical.Fields.Field](../../../Mechanical/Fields/Field.md#ansys.mechanical.stubs.v241.Ansys.ACT.Mechanical.Fields.Field) | [None](https://docs.python.org/3/library/constants.html#None)*

Gets or sets the Y12Imag.

<a id="AcousticTransferAdmittanceMatrix.Y12Real"></a>

### *property* AcousticTransferAdmittanceMatrix.Y12Real *: [Ansys.ACT.Mechanical.Fields.Field](../../../Mechanical/Fields/Field.md#ansys.mechanical.stubs.v241.Ansys.ACT.Mechanical.Fields.Field) | [None](https://docs.python.org/3/library/constants.html#None)*

Gets or sets the Y12Real.

<a id="AcousticTransferAdmittanceMatrix.Y21Imag"></a>

### *property* AcousticTransferAdmittanceMatrix.Y21Imag *: [Ansys.ACT.Mechanical.Fields.Field](../../../Mechanical/Fields/Field.md#ansys.mechanical.stubs.v241.Ansys.ACT.Mechanical.Fields.Field) | [None](https://docs.python.org/3/library/constants.html#None)*

Gets or sets the Y21Imag.

<a id="AcousticTransferAdmittanceMatrix.Y21Real"></a>

### *property* AcousticTransferAdmittanceMatrix.Y21Real *: [Ansys.ACT.Mechanical.Fields.Field](../../../Mechanical/Fields/Field.md#ansys.mechanical.stubs.v241.Ansys.ACT.Mechanical.Fields.Field) | [None](https://docs.python.org/3/library/constants.html#None)*

Gets or sets the Y21Real.

<a id="AcousticTransferAdmittanceMatrix.Y22Imag"></a>

### *property* AcousticTransferAdmittanceMatrix.Y22Imag *: [Ansys.ACT.Mechanical.Fields.Field](../../../Mechanical/Fields/Field.md#ansys.mechanical.stubs.v241.Ansys.ACT.Mechanical.Fields.Field) | [None](https://docs.python.org/3/library/constants.html#None)*

Gets or sets the Y22Imag.

<a id="AcousticTransferAdmittanceMatrix.Y22Real"></a>

### *property* AcousticTransferAdmittanceMatrix.Y22Real *: [Ansys.ACT.Mechanical.Fields.Field](../../../Mechanical/Fields/Field.md#ansys.mechanical.stubs.v241.Ansys.ACT.Mechanical.Fields.Field) | [None](https://docs.python.org/3/library/constants.html#None)*

Gets or sets the Y22Real.

<a id="method-detail"></a>

## Method detail

<a id="AcousticTransferAdmittanceMatrix.Activate"></a>

### AcousticTransferAdmittanceMatrix.Activate()

Activate the current object.

<a id="AcousticTransferAdmittanceMatrix.AddComment"></a>

### AcousticTransferAdmittanceMatrix.AddComment()

Creates a new child Comment.

<a id="AcousticTransferAdmittanceMatrix.AddFigure"></a>

### AcousticTransferAdmittanceMatrix.AddFigure()

Creates a new child Figure.

<a id="AcousticTransferAdmittanceMatrix.AddImage"></a>

### AcousticTransferAdmittanceMatrix.AddImage(filePath: [str](https://docs.python.org/3/library/stdtypes.html#str))

```text
Creates a new child Image.
If a filePath is provided, the image will be loaded from that file,
if not, the image will be a screen capture of the Geometry window.

```

<a id="AcousticTransferAdmittanceMatrix.CopyTo"></a>

### AcousticTransferAdmittanceMatrix.CopyTo(other: Ansys.ACT.Automation.Mechanical.DataModelObject)

Copies all visible properties from this object to another.

<a id="AcousticTransferAdmittanceMatrix.CreateParameter"></a>

### AcousticTransferAdmittanceMatrix.CreateParameter(propName: [str](https://docs.python.org/3/library/stdtypes.html#str))

Creates a new parameter for a Property.

<a id="AcousticTransferAdmittanceMatrix.Delete"></a>

### AcousticTransferAdmittanceMatrix.Delete()

Run the Delete action.

<a id="AcousticTransferAdmittanceMatrix.Duplicate"></a>

### AcousticTransferAdmittanceMatrix.Duplicate()

Creates a copy of the current DataModelObject.

<a id="AcousticTransferAdmittanceMatrix.GetChildren"></a>

### AcousticTransferAdmittanceMatrix.GetChildren(recurses: [bool](https://docs.python.org/3/library/functions.html#bool), children: List\[ChildrenType\])

Gets the list of children, filtered by type.

<a id="AcousticTransferAdmittanceMatrix.GetParameter"></a>

### AcousticTransferAdmittanceMatrix.GetParameter(propName: [str](https://docs.python.org/3/library/stdtypes.html#str))

Gets the parameter corresponding to the given property.

<a id="AcousticTransferAdmittanceMatrix.GroupAllSimilarChildren"></a>

### AcousticTransferAdmittanceMatrix.GroupAllSimilarChildren()

Run the GroupAllSimilarChildren action.

<a id="AcousticTransferAdmittanceMatrix.GroupSimilarObjects"></a>

### AcousticTransferAdmittanceMatrix.GroupSimilarObjects()

Run the GroupSimilarObjects action.

<a id="AcousticTransferAdmittanceMatrix.PromoteToNamedSelection"></a>

### AcousticTransferAdmittanceMatrix.PromoteToNamedSelection()

Run the PromoteToNamedSelection action.

<a id="AcousticTransferAdmittanceMatrix.PropertyByAPIName"></a>

### AcousticTransferAdmittanceMatrix.PropertyByAPIName(name: [str](https://docs.python.org/3/library/stdtypes.html#str))

```text
Get a property by its API name.
If multiple properties have the same API Name, only the first property with that name will be returned.

```

<a id="AcousticTransferAdmittanceMatrix.PropertyByName"></a>

### AcousticTransferAdmittanceMatrix.PropertyByName(name: [str](https://docs.python.org/3/library/stdtypes.html#str))

Get a property by its unique name.

<a id="AcousticTransferAdmittanceMatrix.RemoveParameter"></a>

### AcousticTransferAdmittanceMatrix.RemoveParameter(propName: [str](https://docs.python.org/3/library/stdtypes.html#str))

Removes the parameter from the parameter set corresponding to the given property.