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NodalDamper.C
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7 //* Licensed under LGPL 2.1, please see LICENSE for details
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9 
10 #include "NodalDamper.h"
11 
12 // MOOSE includes
13 #include "Assembly.h"
14 #include "FEProblem.h"
15 #include "MooseVariableFE.h"
16 #include "SubProblem.h"
17 #include "SystemBase.h"
18 
19 #include "libmesh/quadrature.h"
20 
23 {
26  params.addRequiredParam<NonlinearVariableName>(
27  "variable", "The name of the variable that this damper operates on");
28  return params;
29 }
30 
32  : Damper(parameters),
34  _tid(parameters.get<THREAD_ID>("_tid")),
35  _assembly(_subproblem.assembly(_tid, _sys.number())),
36  _coord_sys(_assembly.coordSystem()),
37  _var(_sys.getFieldVariable<Real>(_tid, parameters.get<NonlinearVariableName>("variable"))),
38  _current_node(_var.node()),
39  _qp(0),
40  _u_increment(_var.increment()),
41  _u(_var.dofValues())
42 {
43 }
44 
45 Real
47 {
48  return computeQpDamping();
49 }
constexpr auto increment(std::index_sequence< first, tail... >)
Increment the first number in an index sequence, but roll over into the next number if it reaches Nma...
virtual Real computeQpDamping()=0
This MUST be overridden by a child damper.
static InputParameters validParams()
Definition: Damper.C:16
T * get(const std::unique_ptr< T > &u)
The MooseUtils::get() specializations are used to support making forwards-compatible code changes fro...
Definition: MooseUtils.h:1147
The main MOOSE class responsible for handling user-defined parameters in almost every MOOSE system...
static InputParameters validParams()
void addRequiredParam(const std::string &name, const std::string &doc_string)
This method adds a parameter and documentation string to the InputParameters object that will be extr...
DIE A HORRIBLE DEATH HERE typedef LIBMESH_DEFAULT_SCALAR_TYPE Real
const std::set< SubdomainID > EMPTY_BLOCK_IDS
Definition: MooseTypes.h:596
An interface for accessing Materials.
const std::set< BoundaryID > EMPTY_BOUNDARY_IDS
Definition: MooseTypes.h:597
Base class for deriving dampers.
Definition: Damper.h:24
Real computeDamping()
Computes this Damper&#39;s damping for one node.
Definition: NodalDamper.C:46
MOOSE now contains C++17 code, so give a reasonable error message stating what the user can do to add...
static InputParameters validParams()
Definition: NodalDamper.C:22
unsigned int THREAD_ID
Definition: MooseTypes.h:198
NodalDamper(const InputParameters &parameters)
Definition: NodalDamper.C:31