FixedTranslation

Fixed translation of frame_b with respect to frame_a

Information

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

Component for a fixed translation of frame_b with respect to frame_a, i.e., the relationship between connectors frame_a and frame_b remains constant and frame_a is always parallel to frame_b.

By default, this component is visualized by a cylinder connecting frame_a and frame_b, as shown in the figure below. Note, that the two visualized frames are not part of the component animation and that the animation may be switched off via parameter animation = false.

Parts.FixedTranslation

Parameters (10)

animation	Value: true Type: Boolean Description: = true, if animation shall be enabled
r	Value: Type: Position[3] (m) Description: Vector from frame_a to frame_b resolved in frame_a
shapeType	Value: "cylinder" Type: ShapeType Description: Type of shape
r_shape	Value: {0, 0, 0} Type: Position[3] (m) Description: Vector from frame_a to shape origin, resolved in frame_a
lengthDirection	Value: to_unit1(r - r_shape) Type: Axis Description: Vector in length direction of shape, resolved in frame_a
widthDirection	Value: {0, 1, 0} Type: Axis Description: Vector in width direction of shape, resolved in frame_a
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 depending on shapeType (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 (2)

	frame_a	Type: Frame_a Description: Coordinate system fixed to the component with one cut-force and cut-torque
	frame_b	Type: Frame_b Description: Coordinate system fixed to the component with one cut-force and cut-torque

frame_a

Type: Frame_a

Description: Coordinate system fixed to the component with one cut-force and cut-torque

frame_b

Type: Frame_b

Description: Coordinate system fixed to the component with one cut-force and cut-torque

Components (2)

	world	Type: World
	shape	Type: Shape

Used in Examples (23)

	FreeBody Modelica.Mechanics.MultiBody.Examples.Elementary Free flying body attached by two springs to environment
	LineForceWithTwoMasses Modelica.Mechanics.MultiBody.Examples.Elementary Demonstrate line force with two point masses using a JointUPS and alternatively a LineForceWithTwoMasses component
	PendulumWithSpringDamper Modelica.Mechanics.MultiBody.Examples.Elementary Simple spring/damper/mass system
	PointGravityWithPointMasses2 Modelica.Mechanics.MultiBody.Examples.Elementary Rigidly connected point masses in a point gravity field
	SpringDamperSystem Modelica.Mechanics.MultiBody.Examples.Elementary Simple spring/damper/mass system
	SpringMassSystem Modelica.Mechanics.MultiBody.Examples.Elementary Mass attached with a spring to the world frame
	ThreeSprings Modelica.Mechanics.MultiBody.Examples.Elementary 3-dim. springs in series and parallel connection
	RollingWheelSetDriving Modelica.Mechanics.MultiBody.Examples.Elementary Rolling wheel set that is driven by torques driving the wheels
	RollingWheelSetPulling Modelica.Mechanics.MultiBody.Examples.Elementary Rolling wheel set that is pulled by a force
	HeatLosses Modelica.Mechanics.MultiBody.Examples.Elementary Demonstrate the modeling of heat losses
	UserDefinedGravityField Modelica.Mechanics.MultiBody.Examples.Elementary Demonstrate the modeling of a user-defined gravity field
	Surfaces Modelica.Mechanics.MultiBody.Examples.Elementary Demonstrate the visualization of a sine surface, as well as a torus and a wheel constructed from a surface
	Engine1a Modelica.Mechanics.MultiBody.Examples.Loops Model of one cylinder engine
	Engine1b Modelica.Mechanics.MultiBody.Examples.Loops Model of one cylinder engine with gas force and preparation for assembly joint JointRRP
	Fourbar1 Modelica.Mechanics.MultiBody.Examples.Loops One kinematic loop with four bars (with only revolute joints; 5 non-linear equations)
	Fourbar2 Modelica.Mechanics.MultiBody.Examples.Loops One kinematic loop with four bars (with UniversalSpherical joint; 1 non-linear equation)
	Fourbar_analytic Modelica.Mechanics.MultiBody.Examples.Loops One kinematic loop with four bars (with JointSSP joint; analytic solution of non-linear algebraic loop)
	PlanarLoops_analytic Modelica.Mechanics.MultiBody.Examples.Loops Mechanism with three planar kinematic loops and one degree-of-freedom with analytic loop handling (with JointRRR joints)
	GyroscopicEffects Modelica.Mechanics.MultiBody.Examples.Rotational3DEffects Demonstrates that a cylindrical body can be replaced by Rotor1D model
	PrismaticConstraint Modelica.Mechanics.MultiBody.Examples.Constraints Body attached by one spring and two prismatic joints or constrained to environment
	RevoluteConstraint Modelica.Mechanics.MultiBody.Examples.Constraints Body attached by one spring and revolute joint or constrained to environment
	SphericalConstraint Modelica.Mechanics.MultiBody.Examples.Constraints Body attached by one spring and spherical joint or constrained to environment
	UniversalConstraint Modelica.Mechanics.MultiBody.Examples.Constraints Body attached by one spring and universal joint or constrained to environment

Used in Components (13)

	SystemWithStandardBodies Modelica.Mechanics.MultiBody.Examples.Elementary.PointGravityWithPointMasses2 For comparison purposes, an equivalent model with Bodies instead of PointMasses
	Cylinder Modelica.Mechanics.MultiBody.Examples.Loops.Utilities Cylinder with rod and crank of a combustion engine
	CylinderBase Modelica.Mechanics.MultiBody.Examples.Loops.Utilities One cylinder with analytic handling of kinematic loop
	Engine1bBase Modelica.Mechanics.MultiBody.Examples.Loops.Utilities Model of one cylinder engine with gas force
	GearConstraint Modelica.Mechanics.MultiBody.Joints Ideal 3-dim. gearbox (arbitrary shaft directions)
	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)
	JointUSR Modelica.Mechanics.MultiBody.Joints.Assemblies Universal - spherical - revolute joint aggregation (no constraints, no potential states)
	JointUSP Modelica.Mechanics.MultiBody.Joints.Assemblies Universal - spherical - prismatic joint aggregation (no constraints, no potential states)
	JointSSR Modelica.Mechanics.MultiBody.Joints.Assemblies Spherical - spherical - revolute joint aggregation with mass (no constraints, no potential states)
	JointSSP Modelica.Mechanics.MultiBody.Joints.Assemblies Spherical - spherical - prismatic joint aggregation with mass (no constraints, no potential states)
	BodyShape Modelica.Mechanics.MultiBody.Parts Rigid body with mass, inertia tensor, different shapes for animation, and two frame connectors (12 potential states)
	BodyBox Modelica.Mechanics.MultiBody.Parts Rigid body with box shape. Mass and animation properties are computed from box data and density (12 potential states)
	BodyCylinder Modelica.Mechanics.MultiBody.Parts Rigid body with cylinder shape. Mass and animation properties are computed from cylinder data and density (12 potential states)