BUSHING
The BUSHING command redefines and/or lists the data for a BUSHING statement. Although you cannot define the I and J markers defining the bushing, you can redefine other characteristics of the bushing.
Format
Arguments
C=r1,r2,r3 | Respecifies three viscous damping coefficients for the force transferred by the bushing. |
CT=r1,r2,r3 | Respecifies three viscous damping coefficients for the torque transferred by the bushing. |
FORCE=r1,r2,r3 | Respecifies three constant force (preload) values. |
K=r1,r2,r3 | Respecifies three stiffness coefficients for the force transferred by the bushing. |
KT=r1,r2,r3 | Respecifies three stiffness coefficients for the torque transferred by the bushing. |
LIST | Lists the current values of the data in the BUSHING statement. |
TORQUE=r1,r2,r3 | Respecifies three constant torque (preload) values. |
Caution: | For the rotational constitutive equations to be accurate, at least two of the rotations (a, b, and c) must be small. That is, two of the three values must remain smaller than 10 degrees. In addition, if a becomes greater than 90 degrees, b becomes erratic. If b becomes greater than 90 degrees, a becomes erratic. Only c can become greater than 90 degrees without causing problems. For these reasons, it is best to define your BUSHING such that angles a and b (not a and c and not b and c) remain small. |
See other Forces available.