WOLFRAM SYSTEM MODELER
gravityAccelerationFunction to compute the gravity acceleration, resolved in world frame |
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Wolfram Language
In[1]:=
SystemModel["Modelica.Mechanics.MultiBody.World.gravityAcceleration"]
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Information
This information is part of the Modelica Standard Library maintained by the Modelica Association.
Replaceable function to define the gravity field. Default is function standardGravityAcceleration that provides some simple gravity fields (no gravity, constant parallel gravity field, point gravity field). By redeclaring this function, any type of gravity field can be defined, see example Examples.Elementary.UserDefinedGravityField.
Syntax
gravity = gravityAcceleration(r, gravityType, g, mu)
Inputs (4)
| r |
Type: Position[3] (m) Description: Position vector from world frame to actual point, resolved in world frame |
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| gravityType |
Default Value: gravityType Type: GravityTypes Description: Type of gravity field |
| g |
Default Value: g * Modelica.Math.Vectors.normalizeWithAssert(n) Type: Acceleration[3] (m/s²) Description: Constant gravity acceleration, resolved in world frame, if gravityType=UniformGravity |
| mu |
Default Value: mu Type: Real (m³/s²) Description: Field constant of point gravity field, if gravityType=PointGravity |
Outputs (1)
| gravity |
Type: Acceleration[3] (m/s²) Description: Gravity acceleration at position r, resolved in world frame |
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