2009

Strength Governs the size of the impulse the dashpot applies to each attached
body, taking into account the distance between the attachment points. The
strength value is mass-dependent. For example, a Strength value of 10 generates
a different behavior when connecting two 5 kg bodies than when connecting
two 50 kg bodies. Values greater than or equal to 0 are valid for this property.
Default=1.
Damping Determines how quickly the oscillation of the linear dashpot settles
down. Damping governs the impulse applied to the connected bodies due to
the relative velocities of their dashpot connection points. Valid damping
values are those greater than or equal to 0 and less than or equal to 100000.
Default=0.1.
TIP Typically, a damping value of 1/10th of the stiffness yields good results.
Allow Interpenetration When on, collisions are disabled between the
dashpot’s objects, so that they can pass through each other during the
simulation. Defaults=off.
Disabled When on, the dashpot is not added to the simulation.
Reset Default Values Click this to set Strength, Damping, and Disabled to
their respective default values.
Angular Dashpot
Create panel > Helpers > reactor > A Dashpot
Animation menu > reactor > Create Object > Angular Dashpot
reactor toolbar > Create Angular Dashpot button
Dashpots typically serve to cushion impact. An example of a real-world angular
dashpot is a device connected to a door to keep it from slamming shut. You
can use the Angular Dashpot constraint to constrain the relative orientation
of two rigid bodies, or the absolute orientation of a rigid body in world space.
When simulating, the dashpot exerts angular impulses on the bodies to which
it is attached in an attempt to maintain the specified rotation between the
objects. You can specify the dashpot’s strength and damping, and whether
collisions between the system’s bodies are disabled.
An angular dashpot has two sets of axes as sub-objects. For two-bodied
dashpots, these are specified as offset rotations from the dashpot’s bodies. For
single-bodied dashpots, one sub-object is an offset rotation and the other is
Constraints | 3939