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 # Class FrictionRevolute

 Last update: 09.03.2026 

<a id="VM_API_Pre_FrictionRevolute"></a>

Namespace: [VM.API.Pre](VM.API.Pre.md)  
Assembly: VM.API.Pre.dll

This class represents the friction revolute

```csharp
public class FrictionRevolute : Friction

```

#### Inheritance

object ← [Friction](VM.API.Pre.Friction.md) ← [FrictionRevolute](VM.API.Pre.FrictionRevolute.md)

#### Derived

[FrictionBall](VM.API.Pre.FrictionBall.md)

#### Inherited Members

[Friction.FrictionCoefficient](VM.API.Pre.Friction.md#VM_API_Pre_Friction_FrictionCoefficient), [Friction.StaticFrictionCoefficient](VM.API.Pre.Friction.md#VM_API_Pre_Friction_StaticFrictionCoefficient), [Friction.DynamicsThreshold](VM.API.Pre.Friction.md#VM_API_Pre_Friction_DynamicsThreshold), [Friction.StictionVelocity](VM.API.Pre.Friction.md#VM_API_Pre_Friction_StictionVelocity), [Friction.MaxStictionDeformation](VM.API.Pre.Friction.md#VM_API_Pre_Friction_MaxStictionDeformation), [Friction.FrictionEffect](VM.API.Pre.Friction.md#VM_API_Pre_Friction_FrictionEffect), [Friction.ReactionForce](VM.API.Pre.Friction.md#VM_API_Pre_Friction_ReactionForce), [Friction.BendingMoment](VM.API.Pre.Friction.md#VM_API_Pre_Friction_BendingMoment)

#### Extension Methods

[LinkPropertyItemCache.GetLinkProperties(object, LinkPropertyType)](VM.Models.Pre.Cache.LinkPropertyItemCache.md#VM_Models_Pre_Cache_LinkPropertyItemCache_GetLinkProperties_System_Object_VM_Models_Pre_LinkPropertyType_), [LinkPropertyItemCache.GetLinkPropertiesAndValues(object, LinkPropertyType)](VM.Models.Pre.Cache.LinkPropertyItemCache.md#VM_Models_Pre_Cache_LinkPropertyItemCache_GetLinkPropertiesAndValues_System_Object_VM_Models_Pre_LinkPropertyType_), [LinkPropertyItemCache.GetLinkedObjects&lt;T&gt;(object, LinkPropertyType)](VM.Models.Pre.Cache.LinkPropertyItemCache.md#VM_Models_Pre_Cache_LinkPropertyItemCache_GetLinkedObjects__1_System_Object_VM_Models_Pre_LinkPropertyType_)

## Constructors

### <a id="VM_API_Pre_FrictionRevolute__ctor"></a> FrictionRevolute()

Default constructor

```csharp
public FrictionRevolute()

```

### <a id="VM_API_Pre_FrictionRevolute__ctor_VM_Models_Pre_ExpressionValueVariable_VM_Models_Pre_ExpressionValueVariable_VM_Models_Pre_ExpressionValueVariable_VM_Models_Pre_ExpressionValueVariable_VM_Models_Pre_ExpressionValueVariable_VM_Managed_DAFUL_Constraints_Friction_EffectType_System_Boolean_System_Boolean_VM_Models_Pre_ExpressionValueVariable_VM_Models_Pre_ExpressionValueVariable_VM_Models_Pre_ExpressionValueVariable_VM_Models_Pre_ExpressionValueVariable_"></a> FrictionRevolute(ExpressionValueVariable, ExpressionValueVariable, ExpressionValueVariable, ExpressionValueVariable, ExpressionValueVariable, EffectType, bool, bool, ExpressionValueVariable, ExpressionValueVariable, ExpressionValueVariable, ExpressionValueVariable)

Initializes a new instance of the  class.

```csharp
public FrictionRevolute(ExpressionValueVariable frictionCoefficient, ExpressionValueVariable staticFrictionCoefficient, ExpressionValueVariable dynamicsThreshold, ExpressionValueVariable stictionVelocity, ExpressionValueVariable maxStictionDeformation, Friction.EffectType frictionEffect, bool reactionForce, bool bendingMoment, ExpressionValueVariable frictionArm, ExpressionValueVariable bendingReactionArm, ExpressionValueVariable pinRadius, ExpressionValueVariable preTorque)

```

#### Parameters

`frictionCoefficient` [ExpressionValueVariable](https://github.com/AnsysVirtualMotion/DAFUL/blob/9110677a5f6a53d7604f8dfd35b4c5fceb59e8e0/DAFUL/Pre/Data/VM.Models.Pre/Models/ExpressionValueVariable.cs)

The friction coefficient.

`staticFrictionCoefficient` [ExpressionValueVariable](https://github.com/AnsysVirtualMotion/DAFUL/blob/9110677a5f6a53d7604f8dfd35b4c5fceb59e8e0/DAFUL/Pre/Data/VM.Models.Pre/Models/ExpressionValueVariable.cs)

The static friction coefficient.

`dynamicsThreshold` [ExpressionValueVariable](https://github.com/AnsysVirtualMotion/DAFUL/blob/9110677a5f6a53d7604f8dfd35b4c5fceb59e8e0/DAFUL/Pre/Data/VM.Models.Pre/Models/ExpressionValueVariable.cs)

The dynamics threshold.

`stictionVelocity` [ExpressionValueVariable](https://github.com/AnsysVirtualMotion/DAFUL/blob/9110677a5f6a53d7604f8dfd35b4c5fceb59e8e0/DAFUL/Pre/Data/VM.Models.Pre/Models/ExpressionValueVariable.cs)

The stiction velocity.

`maxStictionDeformation` [ExpressionValueVariable](https://github.com/AnsysVirtualMotion/DAFUL/blob/9110677a5f6a53d7604f8dfd35b4c5fceb59e8e0/DAFUL/Pre/Data/VM.Models.Pre/Models/ExpressionValueVariable.cs)

The max stiction deformation.

`frictionEffect` [Friction](https://github.com/AnsysVirtualMotion/DAFUL/blob/9110677a5f6a53d7604f8dfd35b4c5fceb59e8e0/DAFUL/ClassicPre/Data/VMDCB/Friction.cs).[EffectType](https://github.com/AnsysVirtualMotion/DAFUL/blob/9110677a5f6a53d7604f8dfd35b4c5fceb59e8e0/DAFUL/ClassicPre/Data/VMDCB/Friction.cs)

The friction effect.

`reactionForce` bool

The reaction force.

`bendingMoment` bool

The bending moment.

`frictionArm` [ExpressionValueVariable](https://github.com/AnsysVirtualMotion/DAFUL/blob/9110677a5f6a53d7604f8dfd35b4c5fceb59e8e0/DAFUL/Pre/Data/VM.Models.Pre/Models/ExpressionValueVariable.cs)

The friction arm.

`bendingReactionArm` [ExpressionValueVariable](https://github.com/AnsysVirtualMotion/DAFUL/blob/9110677a5f6a53d7604f8dfd35b4c5fceb59e8e0/DAFUL/Pre/Data/VM.Models.Pre/Models/ExpressionValueVariable.cs)

The bending reaction arm.

`pinRadius` [ExpressionValueVariable](https://github.com/AnsysVirtualMotion/DAFUL/blob/9110677a5f6a53d7604f8dfd35b4c5fceb59e8e0/DAFUL/Pre/Data/VM.Models.Pre/Models/ExpressionValueVariable.cs)

The pin Radius.

`preTorque` [ExpressionValueVariable](https://github.com/AnsysVirtualMotion/DAFUL/blob/9110677a5f6a53d7604f8dfd35b4c5fceb59e8e0/DAFUL/Pre/Data/VM.Models.Pre/Models/ExpressionValueVariable.cs)

The preTorque.

## Properties

### <a id="VM_API_Pre_FrictionRevolute_BendingReactionArm"></a> BendingReactionArm

The value for the bending reaction arm. The default value is 1.

```csharp
public ExpressionValueVariable BendingReactionArm { get; set; }

```

#### Property Value

[ExpressionValueVariable](https://github.com/AnsysVirtualMotion/DAFUL/blob/9110677a5f6a53d7604f8dfd35b4c5fceb59e8e0/DAFUL/Pre/Data/VM.Models.Pre/Models/ExpressionValueVariable.cs)

### <a id="VM_API_Pre_FrictionRevolute_FrictionArm"></a> FrictionArm

The value for the friction arm. The default value is 1.

```csharp
public ExpressionValueVariable FrictionArm { get; set; }

```

#### Property Value

[ExpressionValueVariable](https://github.com/AnsysVirtualMotion/DAFUL/blob/9110677a5f6a53d7604f8dfd35b4c5fceb59e8e0/DAFUL/Pre/Data/VM.Models.Pre/Models/ExpressionValueVariable.cs)

### <a id="VM_API_Pre_FrictionRevolute_PinRadius"></a> PinRadius

The value for the pin Radius. The default value is 1.

```csharp
public ExpressionValueVariable PinRadius { get; set; }

```

#### Property Value

[ExpressionValueVariable](https://github.com/AnsysVirtualMotion/DAFUL/blob/9110677a5f6a53d7604f8dfd35b4c5fceb59e8e0/DAFUL/Pre/Data/VM.Models.Pre/Models/ExpressionValueVariable.cs)

### <a id="VM_API_Pre_FrictionRevolute_PreTorque"></a> PreTorque

The value for the preTorque. The default value is 0.

```csharp
public ExpressionValueVariable PreTorque { get; set; }

```

#### Property Value

[ExpressionValueVariable](https://github.com/AnsysVirtualMotion/DAFUL/blob/9110677a5f6a53d7604f8dfd35b4c5fceb59e8e0/DAFUL/Pre/Data/VM.Models.Pre/Models/ExpressionValueVariable.cs)