xc
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Approximates velocity and acceleration by centered finite differences of displacement. More...
#include <CentralDifferenceBase.h>
Public Member Functions | |
int | formEleTangent (FE_Element *theEle) |
int | formNodTangent (DOF_Group *theDof) |
const Vector & | getVel (void) const |
int | newStep (double deltaT) |
Protected Member Functions | |
CentralDifferenceBase (SolutionStrategy *, int classTag) | |
Constructor. | |
Protected Attributes | |
int | updateCount |
method should only have one update per step | |
Vector | Udot |
vel response quantity at time t-1/2 delta t | |
double | deltaT |
Approximates velocity and acceleration by centered finite differences of displacement.
The central difference method is an explicit integrator that forms a linear combination of the mass and damping matrices to advance the solution to the next time step.