The WDTY function returns the y-axis angular acceleration of one marker or the y-axis relative angular acceleration between two markers.
Format
Arguments definition
|
Marker1 |
The name or argument number of a marker to be calculated |
|
Marker2 |
The name or argument number of the comparison marker for a relative calculation •If omitted, then the InertiaMarker is applied. |
|
Marker3 |
The name or argument number of the marker for axis definition •If omitted, then the InertiaMarker is applied. |
|
Marker4 |
A standard marker for calculating acceleration •The formula calculates acceleration relative to the angular velocity and the angular acceleration of Marker4. •Marker4 must be the same value as Marker3. If omitted, then the InertiaMarker is applied. |
Formulation
: Angular
acceleration vector of Marker1 relative to the angular velocity and angular
acceleration of Marker4
: Angular
acceleration vector of Marker2 relative to the angular velocity and angular
acceleration of Marker4
:
y-direction unit vector of Marker3
Example
WDTY (body1.Marker1, body2.Marker2)
WDTY (body1.Marker1, body2.Marker2, body3.Marker3)
WDTY (body1.Marker1, body2.Marker2, body3.Marker3, body3.Marker3)
WDTY (1,2,3,3) <Argument (1)body1.Marker1, (2)body2.Marker2, (3)body3.Marker3>