Two-Way Radio User Manual

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STEADY STATE TRANSPORT
18.35
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STEADY STATE TRA NSPORT: Steady-state transport analysis.
This option is used to indicate that the step should be analyzed as a steady-state transport analysis.
Product: ABAQUS/Standard
Type: History data
Level: Step
References:
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“Steady-state transport analysis,” Section 6.4.1 of the ABAQUS Analysis User’s Manual
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“Symm etric model generation,” Section 10.3.1 of the ABAQU S Analysis User ’s Manual
Optional parameters:
DIRECT
This parameter selects direct user control of the incrementation through the step. If this parameter
is used, constant increments of the size defined by the first item on the data line are used. If this
parameter is omitted, ABAQUS/Standard will choose the increments (after tryin g the user’s initial
time increm ent for the first attempt at the first increment).
The parameter can have the value NO STOP. If this value is included, the solution to an
increment is accepted after the maximum num ber of iterations allowed has been completed (as
defined by the
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CONTROLS option), even if the equilibrium tolerances are not satisfied. Very
small increments and a minimum of two iterations are usually necessary if this value is used. This
approach is not recommended; it should be used only in special cases when the analyst has a
thorough understanding of how to interpret results obtained in this way.
ELSET
Set this parameter equal to the nam e of an elem ent set for which the rigid body m otion will be
described in a spatial or Eulerian m anner. The rest of the elements in the m odel will be treated in a
classical Lagrangian manner. Only one Eulerian element set can be specified in the whole model.
If this parameter is omitted, the rigid body motion in the whole model will be described in a
spatial or Eulerian manner.
FACTOR
Set this parameter equal to the damping factor to be used in the automatic damping algorithm
(see “Solving nonlinear problems,” Sect ion 7.1.1 of the ABAQUS Ana lysis User’s Manual) if the
problem is expected to be unstable due to local instabilities and the damping factor calculated
by ABAQUS is not suitable. This parameter must be used in conjunction with the STABILIZE
18.35–1
ABAQUS Version 6.1 Module:
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