Main Page Class Hierarchy Alphabetical List Compound List File List Compound Members File Members
LoadControl Class Reference#include <LoadControl.h>
Inheritance diagram for LoadControl::
List of all members.
Detailed Description
LoadControl is a subclass of StaticIntegrator, it is used to when performing a static analysis on the FE\_Model using the load control method. In the load control method, the following constraint equation is added to equation~\ref{staticFormTaylor} of the StaticIntegrator class:
where 
depends on 
, the load increment at the previous time step, 
, the number of iterations required to achieve convergence in the previos load step, and 
, the desired number of iteraions.
is bounded by 
and 
. \
Knowing 
prior to each iteration, the 
unknowns in equation~\ref{staticFormTaylor}, is reduced to 
unknowns and results in the following equation:
\begin{equation} \R(U_{n}) = \lambda_n^{(i)} \P
- \f_{R}\left(U_{n}^{(i)} \right) - K_n^{(i)} (U_{n} - U_{n}^{(i)}) \label{staticFormLoadControl} \end{equation}
Definition at line 85 of file LoadControl.h.
Constructor & Destructor Documentation
|
LoadControl::LoadControl (
|
double deltaLambda,
|
|
int numIncr,
|
|
double minLambda,
|
|
double maxlambda )
|
|
|
LoadControl::~LoadControl (
|
)
|
|
Member Function Documentation
|
void LoadControl::Print (
|
ostream & s,
|
|
int flag = 0 ) [virtual]
|
|
|
int LoadControl::newStep (
|
void ) [virtual]
|
|
|
|
The object obtains the current value of 
from the AnalysisModel object. It increments this by 
.
It will then invoke {applyLoadDomain(0.0,
)} on the AnalysisModel object. Returns 
if successful. A warning message is printed and a 
is returned if no AnalysisModel is associated with the object.
Reimplemented from StaticIntegrator.
Definition at line 67 of file LoadControl.cpp. |
|
|
Receives in a Vector of size 5 the data that was sent in {sendSelf()}. Returns
if successful, a warning message is printed, 
is set to
, and a
is returned if {theChannel} fails to receive the Vector.
Reimplemented from MovableObject.
Definition at line 142 of file LoadControl.cpp. |
|
int LoadControl::sendSelf (
|
int commitTag,
|
|
Channel & theChannel ) [virtual]
|
|
|
int LoadControl::setDeltaLambda (
|
double newDeltaLambda )
|
|
|
|
Sets the value of the load increment in {newStep()} to be
. Returns
.
Definition at line 114 of file LoadControl.cpp. |
|
int LoadControl::update (
|
const Vector & deltaU ) [virtual]
|
|
|
|
Invoked this causes the object to first increment the DOF\_Group displacements with 
, by invoking {incrDisp(\form#226} on the AnalysisModel, and then to update the domain, by invoking {updateDomain()} on the AnalysisModel. Returns
if successful, a warning message and a
is returned if no AnalysisModel is associated with the object.
Reimplemented from IncrementalIntegrator.
Definition at line 95 of file LoadControl.cpp. |
The documentation for this class was generated from the following files:
|
Copyright
its type, the current value of