Fixed

Frame fixed in the world frame at a given position

Information

This information is part of the Modelica Standard Library maintained by the Modelica Association.

Element consisting of a frame (frame_b) that is fixed in the world frame at a given position defined by parameter vector r (vector from origin of world frame to frame_b, resolved in the world frame).

By default, this component is visualized by a cylinder connecting the world frame and frame_b of this components, as shown in the figure below. Note, that the visualized world frame on the left side and Fixed.frame_b on the right side are not part of the component animation and that the animation may be switched off via parameter animation = false.

Parts.Fixed

Parameters (10)

animation	Value: true Type: Boolean Description: = true, if animation shall be enabled
r	Value: {0, 0, 0} Type: Position[3] (m) Description: Position vector from world frame to frame_b, resolved in world frame
shapeType	Value: "cylinder" Type: ShapeType Description: Type of shape
r_shape	Value: {0, 0, 0} Type: Position[3] (m) Description: Vector from world frame to shape origin, resolved in world frame
lengthDirection	Value: to_unit1(r - r_shape) Type: Axis Description: Vector in length direction of shape, resolved in world frame
widthDirection	Value: {0, 1, 0} Type: Axis Description: Vector in width direction of shape, resolved in world frame
length	Value: Modelica.Math.Vectors.length(r - r_shape) Type: Length (m) Description: Length of shape
width	Value: length / world.defaultWidthFraction Type: Distance (m) Description: Width of shape
height	Value: width Type: Distance (m) Description: Height of shape
extra	Value: 0.0 Type: ShapeExtra Description: Additional parameter for cone, pipe etc. (see docu of Visualizers.Advanced.Shape)

Inputs (2)

color	Default Value: Modelica.Mechanics.MultiBody.Types.Defaults.RodColor Type: Color Description: Color of shape
specularCoefficient	Default Value: world.defaultSpecularCoefficient Type: SpecularCoefficient Description: Reflection of ambient light (= 0: light is completely absorbed)

color

Default Value: Modelica.Mechanics.MultiBody.Types.Defaults.RodColor

Type: Color

Description: Color of shape

specularCoefficient

Default Value: world.defaultSpecularCoefficient

Type: SpecularCoefficient

Description: Reflection of ambient light (= 0: light is completely absorbed)

Connectors (1)

	frame_b	Type: Frame_b Description: Coordinate system fixed in the world frame

frame_b

Type: Frame_b

Description: Coordinate system fixed in the world frame

Components (2)

	world	Type: World
	shape	Type: Shape

Used in Examples (6)

	ForceAndTorque Modelica.Mechanics.MultiBody.Examples.Elementary Demonstrate usage of ForceAndTorque element
	InitSpringConstant Modelica.Mechanics.MultiBody.Examples.Elementary Determine spring constant such that system is in steady state at given position
	GyroscopicEffects Modelica.Mechanics.MultiBody.Examples.Rotational3DEffects Demonstrates that a cylindrical body can be replaced by Rotor1D model
	ActuatedDrive Modelica.Mechanics.MultiBody.Examples.Rotational3DEffects Demonstrates usage of models Rotor1D and Mounting1D
	MovingActuatedDrive Modelica.Mechanics.MultiBody.Examples.Rotational3DEffects Demonstrates usage of model Rotor1D mounted on a moving body
	GearConstraint Modelica.Mechanics.MultiBody.Examples.Rotational3DEffects Demonstrate usage of GearConstraint model

Used in Components (1)

RollingWheelSet

Modelica.Mechanics.MultiBody.Joints

Joint (no mass, no inertia) that describes an ideal rolling wheel set (two ideal rolling wheels connected together by an axis)