chrono::fea::ChNodeFEAbase Class Referenceabstract
Description
Base class for a generic finite element node that can be stored in ChMesh containers.
Derived classes must implement specialized versions.
#include <ChNodeFEAbase.h>
Inheritance diagram for chrono::fea::ChNodeFEAbase:
Collaboration diagram for chrono::fea::ChNodeFEAbase:
Public Member Functions | |
| virtual void | Relax ()=0 |
| Set the rest position as the actual position. | |
| virtual void | SetNoSpeedNoAcceleration ()=0 |
| Reset to no speed and acceleration. | |
| virtual void | SetFixed (bool mev)=0 |
| Set the 'fixed' state of the node. More... | |
| virtual bool | GetFixed ()=0 |
| Get the 'fixed' state of the node. More... | |
| virtual void | SetIndex (unsigned int mindex) |
| Sets the global index of the node. | |
| virtual unsigned int | GetIndex () |
| Gets the global index of the node. | |
 Public Member Functions inherited from chrono::ChNodeBase | |
| ChNodeBase (const ChNodeBase &other) | |
| ChNodeBase & | operator= (const ChNodeBase &other) |
| virtual int | Get_ndof_x () const =0 |
| Get the number of degrees of freedom. | |
| virtual int | Get_ndof_w () const |
| Get the number of degrees of freedom, derivative This might be different from ndof if quaternions are used for rotations, as derivative might be angular velocity. | |
| unsigned int | NodeGetOffset_x () |
| Get offset in the state vector (position part) | |
| unsigned int | NodeGetOffset_w () |
| Get offset in the state vector (speed part) | |
| void | NodeSetOffset_x (const unsigned int moff) |
| Set offset in the state vector (position part) | |
| void | NodeSetOffset_w (const unsigned int moff) |
| Set offset in the state vector (speed part) | |
| virtual void | NodeIntStateGather (const unsigned int off_x, ChState &x, const unsigned int off_v, ChStateDelta &v, double &T) |
| virtual void | NodeIntStateScatter (const unsigned int off_x, const ChState &x, const unsigned int off_v, const ChStateDelta &v, const double T) |
| virtual void | NodeIntStateGatherAcceleration (const unsigned int off_a, ChStateDelta &a) |
| virtual void | NodeIntStateScatterAcceleration (const unsigned int off_a, const ChStateDelta &a) |
| virtual void | NodeIntStateIncrement (const unsigned int off_x, ChState &x_new, const ChState &x, const unsigned int off_v, const ChStateDelta &Dv) |
| virtual void | NodeIntLoadResidual_F (const unsigned int off, ChVectorDynamic<> &R, const double c) |
| virtual void | NodeIntLoadResidual_Mv (const unsigned int off, ChVectorDynamic<> &R, const ChVectorDynamic<> &w, const double c) |
| virtual void | NodeIntToDescriptor (const unsigned int off_v, const ChStateDelta &v, const ChVectorDynamic<> &R) |
| virtual void | NodeIntFromDescriptor (const unsigned int off_v, ChStateDelta &v) |
| virtual void | InjectVariables (ChSystemDescriptor &mdescriptor) |
| Tell to a system descriptor that there are variables of type ChVariables in this object (for further passing it to a solver) | |
| virtual void | VariablesFbReset () |
| Sets the 'fb' part (the known term) of the encapsulated ChVariables to zero. | |
| virtual void | VariablesFbLoadForces (double factor=1) |
| Adds the current forces (applied to node) into the encapsulated ChVariables, in the 'fb' part: qf+=forces*factor. | |
| virtual void | VariablesQbLoadSpeed () |
| Initialize the 'qb' part of the ChVariables with the current value of speeds. | |
| virtual void | VariablesFbIncrementMq () |
| Adds M*q (masses multiplied current 'qb') to Fb, ex. More... | |
| virtual void | VariablesQbSetSpeed (double step=0) |
| Fetches the item speed (ex. More... | |
| virtual void | VariablesQbIncrementPosition (double step) |
| Increment node positions by the 'qb' part of the ChVariables, multiplied by a 'step' factor. More... | |
| virtual void | ArchiveOUT (ChArchiveOut &marchive) |
| Method to allow serialization of transient data to archives. | |
| virtual void | ArchiveIN (ChArchiveIn &marchive) |
| Method to allow de-serialization of transient data from archives. More... | |
Public Attributes | |
| double | m_TotalMass |
| Nodal mass obtained from element masss matrix. | |
Protected Attributes | |
| unsigned int | g_index |
| global node index | |
| Protected Attributes inherited from chrono::ChNodeBase | |
| unsigned int | offset_x |
| offset in vector of state (position part) | |
| unsigned int | offset_w |
| offset in vector of state (speed part) | |
Member Function Documentation
◆ GetFixed()
|
pure virtual |
Get the 'fixed' state of the node.
If true, its current field value is not changed by solver.
Implemented in chrono::fea::ChNodeFEAcurv, chrono::fea::ChNodeFEAxyzDDD, chrono::fea::ChNodeFEAxyzDD, chrono::fea::ChNodeFEAxyzD, chrono::fea::ChNodeFEAxyzrot, chrono::fea::ChNodeFEAxyz, and chrono::fea::ChNodeFEAxyzP.
◆ SetFixed()
|
pure virtual |
Set the 'fixed' state of the node.
If true, its current field value is not changed by solver.
Implemented in chrono::fea::ChNodeFEAcurv, chrono::fea::ChNodeFEAxyzDDD, chrono::fea::ChNodeFEAxyzDD, chrono::fea::ChNodeFEAxyzD, chrono::fea::ChNodeFEAxyzrot, chrono::fea::ChNodeFEAxyz, and chrono::fea::ChNodeFEAxyzP.
The documentation for this class was generated from the following file:
- /builds/uwsbel/chrono/src/chrono/fea/ChNodeFEAbase.h
