Rotational.support

[modelica-trac-importer]

Reported by AHaumer on 19 Nov 2007 09:28 UTC
All elements with Rotational.support are wrong or at least misleading;
consider friction: fine that the friction torque appears at the support,
but the relative angular velocity which defines friction torque is NOT the absolute angular velocity of the shaft BUT the relative angular velocity of the shaft against the support! We may discuss the sources (like position, whether we want to define an absolute position or the position against support - which would be much easier to understand!)
Translational (in MSL 3.0) has the same defect since the support has been introduced.

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Migrated-From: https://trac.modelica.org/Modelica/ticket/18

[modelica-trac-importer]

Comment by AHaumer on 19 Nov 2007 10:04 UTC
The elements are ok since they extend from PartialGear which defines the relative angles against support in the right way.
Also the SpeedDependent sources are ok since the relative velocity against support is defined in PartialSpeedDependentSource.
We should discuss the other sources (e.g. whether position, velocity or acceleration should be defined absolute or relative against the support).

[modelica-trac-importer]

Modified by dietmarw on 19 Nov 2007 10:45 UTC

[modelica-trac-importer]

Comment by AHaumer on 19 Nov 2007 11:11 UTC
Could be a good idea to let the user choose whether to define position / velocity / acceleration absolute (like now) or relative to support.

[modelica-trac-importer]

Comment by AHaumer on 19 Nov 2007 16:38 UTC
fixed by 8320a6d, 2155a00
defined the movement of the flange relative to support
(Position, Speed, Accelerate, Move)