Changeset 767

Timestamp:

11/04/07 18:42:39 (13 months ago)

Author:

otter

Message:

Bug in torque calculation of Rotational correct, if bearing was not fixed to ground
(speed in torque calculation was the speed of the flange and not the correct relative speed to the bearing).

Files:

• Modelica/branches/maintenance/2.2.2/Modelica/package.mo (modified) (1 diff)

Modelica/branches/maintenance/2.2.2/Modelica/package.mo

@@ -595 +595 @@
       <td valign=\"top\"> Description text</td> 
   </tr>
+  <tr><td colspan=\"2\"><b>Mechanics.Rotational.</b></td></tr>
+  <tr><td valign=\"top\"> LinearSpeedDependentTorque<br>
+                        QuadraticSpeedDependentTorque<br>
+                        ConstantTorque<br>
+                        ConstantSpeed<br>
+                        TorqueStep</td>
+      <td valign=\"top\"> Speed used in torque calculation was der(flange.phi) and not
+                        the speed relative to the bearing<br> (= der(flange.phi) - der(bearing.phi)).
+                        This was correct. This bug leads to wrong simulation results,<br> 
+                        when the bearing is not fixed to ground </td> 
+  </tr>
+
 </table>