Newmark 2nd-order time-integrator for 6DoF solid-body motion. More...

Inheritance diagram for Newmark:

Collaboration diagram for Newmark:

Public Member Functions
	TypeName ("Newmark")
	Runtime type information. More...

	Newmark (rigidBodyMotion &body, const dictionary &dict)
	Construct for the given body from dictionary. More...

virtual	~Newmark ()
	Destructor. More...

virtual void	solve (const scalarField &tau, const Field< spatialVector > &fx)
	Integrate the rigid-body motion for one time-step. More...

Public Member Functions inherited from rigidBodySolver
	TypeName ("rigidBodySolver")
	Runtime type information. More...

	declareRunTimeSelectionTable (autoPtr, rigidBodySolver, dictionary,(rigidBodyMotion &body, const dictionary &dict),(body, dict))

	rigidBodySolver (rigidBodyMotion &body)

virtual	~rigidBodySolver ()
	Destructor. More...

Additional Inherited Members
Static Public Member Functions inherited from rigidBodySolver
static autoPtr< rigidBodySolver >	New (rigidBodyMotion &body, const dictionary &dict)

Protected Member Functions inherited from rigidBodySolver
rigidBodyModelState &	state ()
	Return the motion state. More...

scalarField &	q ()
	Return the current joint position and orientation. More...

scalarField &	qDot ()
	Return the current joint quaternion. More...

scalarField &	qDdot ()
	Return the current joint acceleration. More...

scalar	deltaT () const
	Return the current time-step. More...

const rigidBodyModelState &	state0 () const
	Return the previous motion state. More...

const scalarField &	q0 () const
	Return the current joint position and orientation. More...

const scalarField &	qDot0 () const
	Return the current joint quaternion. More...

const scalarField &	qDdot0 () const
	Return the current joint acceleration. More...

scalar	deltaT0 () const
	Return the previous time-step. More...

void	correctQuaternionJoints ()
	Correct the quaternion joints based on the current change in q. More...

Protected Attributes inherited from rigidBodySolver
rigidBodyMotion &	model_
	The rigid-body model. More...

Detailed Description

Newmark 2nd-order time-integrator for 6DoF solid-body motion.

Reference:

    Newmark, N. M. (1959).
    A method of computation for structural dynamics.
    Journal of the Engineering Mechanics Division, 85(3), 67-94.

Example specification in dynamicMeshDict:

solver
{
    type    Newmark;
    gamma   0.5;    // Velocity integration coefficient
    beta    0.25;   // Position integration coefficient
}

Source files

Definition at line 69 of file Newmark.H.

Constructor & Destructor Documentation

Construct for the given body from dictionary.

Definition at line 46 of file Newmark.C.

~Newmark ( )

virtual

Destructor.

Definition at line 67 of file Newmark.C.

TypeName ( "Newmark" )

Runtime type information.

virtual

Integrate the rigid-body motion for one time-step.

Definition at line 73 of file Newmark.C.

References Foam::sqr(), and tau.

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The documentation for this class was generated from the following files: