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WOLFRAM SYSTEM MODELER

BalancingWeight

Class with an unblance, normally to be used together with a disk

Diagram

Wolfram Language

In[1]:=

SystemModel["RotatingMachinery.Masses.BalancingWeight"]

Out[1]:=

Information

Balancing Weight

This unbalance weight is added to the frames of the bodyCylinder. The main purpose for this component is to add an unbalance to the disk component, but it may also be used by itself [1] .

The size of the mass unbalance is by default set by the parameter massUnbalance, i.e. size of the unbalance and position in the radial direction. The unbalance force created will then be: unbalance * rotationalfrequency² [N].

Figure 1: Balancing weight.

References

[1] Ehrich, F. F . Handbook of Rotordynamics. McGraw-Hill, 1992.

Parameters (4)

sphereDiameter	Value: sphereDiameter Type: Diameter (m) Description: Diameter of sphere
Unbalance	Value: Type: Real (kg⋅m) Description: Unbalance
UnbalanceRadius	Value: Type: Position (m) Description: Radial position of unbalance mass
unbalanceDirection	Value: Type: Angle_deg (°) Description: Phase of unbalance mass

Connectors (2)

	frame_a	Type: Frame_a Description: Coordinate system fixed to the component with one cut-force and cut-torque (filled rectangular icon)
	frame_b	Type: Frame_b Description: Coordinate system fixed to the component with one cut-force and cut-torque (non-filled rectangular icon)

frame_a

Type: Frame_a

Description: Coordinate system fixed to the component with one cut-force and cut-torque (filled rectangular icon)

frame_b

Type: Frame_b

Description: Coordinate system fixed to the component with one cut-force and cut-torque (non-filled rectangular icon)

Components (4)

	fixedTranslation	Type: FixedTranslation Description: Fixed translation of frame_b with respect to frame_a
	fixedRotationUnbalance	Type: FixedRotation Description: Fixed translation followed by a fixed rotation of frame_b with respect to frame_a
	unbalanceMass	Type: PointMass Description: Rigid body where body rotation and inertia tensor is neglected (6 potential states)
	world	Type: World Description: World coordinate system + gravity field + default animation definition

Used in Components (1)

Disk

RotatingMachinery.Masses

Class with a disk and unblances