Package Modelica.Mechanics.MultiBody.Examples.Elementary.UtilitiesUtility classes used by elementary multi-body example models
Package Modelica.Mechanics.MultiBody.Examples.Elementary.Utilities
This package contains utility models and functions used by some of the elementary example models from the multi-body package.
Extends from Modelica.Icons.UtilitiesPackage (Icon for utility packages).
| Name | Description |
|---|---|
sineSurface | Function defining the characteristic of a moving sine in three dimensions |
theoreticalNormalGravityWGS84 | WGS84 normal gravity over earth ellipsoid in negative y-direction |
Function Modelica.Mechanics.MultiBody.Examples.Elementary.Utilities.theoreticalNormalGravityWGS84
Function that computes the theoretical gravity of the WGS84 ellipsoid earth model at and close to the earth ellipsoid surface, for the given "geodeticLatitude" and the given "height=r[2]" over the ellipsoid surface.
Extends from Modelica.Mechanics.MultiBody.Interfaces.partialGravityAcceleration (Interface for the gravity function used in the World object).
| Type | Name | Description |
|---|---|---|
Position | r[3] | Position vector from world frame to actual point, resolved in world frame |
Angle_deg | phi | Geodetic latitude |
| Type | Name | Description |
|---|---|---|
Acceleration | gravity[3] | Gravity acceleration at position r, resolved in world frame |
Function Modelica.Mechanics.MultiBody.Examples.Elementary.Utilities.sineSurface
Function defining the characteristics of a moving sine in three dimensions. This function is used in example Elementary.Surfaces.
Extends from Modelica.Mechanics.MultiBody.Interfaces.partialSurfaceCharacteristic (Interface for a function returning surface characteristics).
| Type | Name | Description |
|---|---|---|
Integer | nu | Number of points in u-Dimension |
Integer | nv | Number of points in v-Dimension |
Boolean | multiColoredSurface | = true: Color is defined for each surface point |
Real | x_min | Minimum value of x |
Real | x_max | Maximum value of x |
Real | y_min | Minimum value of y |
Real | y_max | Maximum value of y |
Real | z_min | Minimum value of z |
Real | z_max | Maximum value of z |
Real | wz | Factor for angular frequency |
| Type | Name | Description |
|---|---|---|
Position | X[nu,nv] | [nu,nv] positions of points in x-Direction resolved in surface frame |
Position | Y[nu,nv] | [nu,nv] positions of points in y-Direction resolved in surface frame |
Position | Z[nu,nv] | [nu,nv] positions of points in z-Direction resolved in surface frame |
Real | C[if multiColoredSurface then nu else 0,if multiColoredSurface then nv else 0,3] | [nu,nv,3] Color array, defining the color for each surface point |