theoreticalNormalGravityWGS84
sineSurface
Utility classes used by elementary multi-body example models
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 |
|---|---|
| theoreticalNormalGravityWGS84
|
WGS84 normal gravity over earth ellipsoid in negative y-direction |
| sineSurface
|
Function defining the characteristic of a moving sine in three dimensions |
Modelica.Mechanics.MultiBody.Examples.Elementary.Utilities.theoreticalNormalGravityWGS84WGS84 normal gravity over earth ellipsoid in negative y-direction
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).
| Name | Description |
|---|---|
| r[3] | Position vector from world frame to actual point, resolved in world frame [m] |
| phi | Geodetic latitude [deg] |
| Name | Description |
|---|---|
| gravity[3] | Gravity acceleration at position r, resolved in world frame [m/s2] |
Modelica.Mechanics.MultiBody.Examples.Elementary.Utilities.sineSurfaceFunction defining the characteristic of a moving sine in three dimensions
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).
| Name | Description |
|---|---|
| nu | Number of points in u-Dimension |
| nv | Number of points in v-Dimension |
| multiColoredSurface | = true: Color is defined for each surface point |
| x_min | Minimum value of x |
| x_max | Maximum value of x |
| y_min | Minimum value of y |
| y_max | Maximum value of y |
| z_min | Minimum value of z |
| z_max | Maximum value of z |
| wz | Factor for angular frequency |
| Name | Description |
|---|---|
| X[nu, nv] | [nu,nv] positions of points in x-Direction resolved in surface frame [m] |
| Y[nu, nv] | [nu,nv] positions of points in y-Direction resolved in surface frame [m] |
| Z[nu, nv] | [nu,nv] positions of points in z-Direction resolved in surface frame [m] |
| 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 |