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externalForce.C
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25 
26 #include "externalForce.H"
27 #include "rigidBodyModel.H"
28 #include "rigidBodyModelState.H"
29 #include "OneConstant.H"
31 
32 // * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
33 
34 namespace Foam
35 {
36 namespace RBD
37 {
38 namespace restraints
39 {
41 
43  (
44  restraint,
47  );
48 }
49 }
50 }
51 
52 
53 // * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
54 
56 (
57  const word& name,
58  const dictionary& dict,
59  const rigidBodyModel& model
60 )
61 :
62  restraint(name, dict, model),
63  externalForce_(nullptr)
64 {
65  read(dict);
66 }
67 
68 
69 // * * * * * * * * * * * * * * * * Destructor * * * * * * * * * * * * * * * //
70 
72 {}
73 
74 
75 // * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * * //
76 
78 (
79  scalarField& tau,
81  const rigidBodyModelState& state
82 ) const
83 {
84  const vector force = externalForce_().value(state.t());
85  const vector moment(location_ ^ force);
86 
87  if (model_.debug)
88  {
89  Info<< " location " << location_
90  << " force " << force
91  << " moment " << moment
92  << endl;
93  }
94 
95  // Accumulate the force for the restrained body
96  fx[bodyIndex_] += spatialVector(moment, force);
97 }
98 
99 
101 (
102  const dictionary& dict
103 )
104 {
105  restraint::read(dict);
106 
107  coeffs_.lookup("location") >> location_;
108 
109  externalForce_ = Function1<vector>::New("force", coeffs_);
110 
111  return true;
112 }
113 
114 
116 (
117  Ostream& os
118 ) const
119 {
120  restraint::write(os);
121 
122  writeEntry(os, "location", location_);
123 
124  writeEntry(os, externalForce_());
125 }
126 
127 
128 // ************************************************************************* //
virtual void write(Ostream &) const
Write.
addToRunTimeSelectionTable(restraint, externalForce, dictionary)
defineTypeNameAndDebug(externalForce, 0)
A list of keyword definitions, which are a keyword followed by any number of values (e...
Definition: dictionary.H:158
Base class for defining restraints for rigid-body dynamics.
Ostream & endl(Ostream &os)
Add newline and flush stream.
Definition: Ostream.H:251
virtual void restrain(scalarField &tau, Field< spatialVector > &fx, const rigidBodyModelState &state) const
Accumulate the retraint internal joint forces into the tau field and.
Definition: externalForce.C:78
Macros for easy insertion into run-time selection tables.
Holds the motion state of rigid-body model.
bool read(const char *, int32_t &)
Definition: int32IO.C:85
virtual bool read(const dictionary &dict)
Update properties from given dictionary.
externalForce(const word &name, const dictionary &dict, const rigidBodyModel &model)
Construct from components.
Definition: externalForce.C:56
scalar t() const
Return access to the time.
A class for handling words, derived from string.
Definition: word.H:59
SpatialVector< scalar > spatialVector
SpatialVector of scalars.
Definition: spatialVector.H:47
An Ostream is an abstract base class for all output systems (streams, files, token lists...
Definition: Ostream.H:54
void writeEntry(Ostream &os, const HashTable< T, Key, Hash > &ht)
Definition: HashTableIO.C:96
messageStream Info
virtual bool read(const dictionary &dict)
Update properties from given dictionary.
Basic rigid-body model representing a system of rigid-bodies connected by 1-6 DoF joints...
virtual void write(Ostream &) const =0
Write.
Time-dependent external force restraint using Function1.
Definition: externalForce.H:68
virtual ~externalForce()
Destructor.
Definition: externalForce.C:71
static autoPtr< Function1< Type > > New(const word &entryName, const dictionary &dict)
Selector.
Definition: Function1New.C:32
Namespace for OpenFOAM.