chrono::fea::ChLoadBeamWrench Class Reference


Atomic wrench (ready to use load) Load for a wrench (force+torque) at a specific position of a beam.

The ChLoaderBeamWrench is a 'container' for ChLoadBeamWrench. An atomic load on the beam is a wrench, i.e. force+load aplied at a certain abscyssa U, that is a six-dimensional load. It is not a distributed load, so inherit it from ChLoaderUatomic:

#include <ChLoadsBeam.h>

Inheritance diagram for chrono::fea::ChLoadBeamWrench:
Collaboration diagram for chrono::fea::ChLoadBeamWrench:

Public Member Functions

 ChLoadBeamWrench (std::shared_ptr< ChLoadableU > mloadable)
- Public Member Functions inherited from chrono::ChLoad< ChLoaderBeamWrench >
 ChLoad (std::shared_ptr< typename ChLoaderBeamWrench::type_loadable > mloadable)
virtual int LoadGet_ndof_x ()
 Gets the number of DOFs affected by this load (position part)
virtual int LoadGet_ndof_w ()
 Gets the number of DOFs affected by this load (speed part)
virtual void LoadGetStateBlock_x (ChState &mD)
 Gets all the current DOFs packed in a single vector (position part)
virtual void LoadGetStateBlock_w (ChStateDelta &mD)
 Gets all the current DOFs packed in a single vector (speed part)
virtual void LoadStateIncrement (const ChState &x, const ChStateDelta &dw, ChState &x_new)
 Increment a packed state (ex. More...
virtual int LoadGet_field_ncoords ()
 Number of coordinates in the interpolated field, ex=3 for a tetrahedron finite element or a cable, = 1 for a thermal problem, etc. More...
virtual void ComputeQ (ChState *state_x, ChStateDelta *state_w)
 Compute Q, the generalized load. More...
virtual void ComputeJacobian (ChState *state_x, ChStateDelta *state_w, ChMatrix<> &mK, ChMatrix<> &mR, ChMatrix<> &mM)
 Compute jacobians (default fallback). More...
virtual void LoadIntLoadResidual_F (ChVectorDynamic<> &R, const double c)
 Adds the internal loads Q (pasted at global nodes offsets) into a global vector R, multiplied by a scaling factor c, as R += forces * c.
virtual bool IsStiff ()
 Default: load is stiff if the loader is stiff. Override if needed.
virtual void CreateJacobianMatrices ()
 Create the jacobian loads if needed, and also set the ChVariables referenced by the sparse KRM block. More...
- Public Member Functions inherited from chrono::ChLoadBase
ChLoadJacobiansGetJacobians ()
 Access the jacobians (if any, i.e. if this is a stiff load)
virtual void Update ()
 Update: this is called at least at each time step. More...
virtual void InjectKRMmatrices (ChSystemDescriptor &mdescriptor)
 Tell to a system descriptor that there are item(s) of type ChKblock in this object (for further passing it to a solver) Basically does nothing, but inherited classes must specialize this. More...
virtual void KRMmatricesLoad (double Kfactor, double Rfactor, double Mfactor)
 Adds the current stiffness K and damping R and mass M matrices in encapsulated ChKblock item(s), if any. More...

Additional Inherited Members

- Public Attributes inherited from chrono::ChLoad< ChLoaderBeamWrench >
ChLoaderBeamWrench loader
- Protected Attributes inherited from chrono::ChLoadBase