sphereI.H
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25 
26 // * * * * * * * * * * * * * Private Member Functions * * * * * * * * * * * //
27 
28 inline Foam::symmTensor Foam::RBD::sphere::I
29 (
30  const scalar m,
31  const scalar r
32 ) const
33 {
34  return ((2.0/5.0)*m*sqr(r))*Foam::I;
35 }
36 
37 
38 // * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
39 
41 (
42  const word& name,
43  const scalar m,
44  const vector& c,
45  const scalar r
46 )
47 :
48  rigidBody(name, m, c, I(m, r)),
49  r_(r)
50 {}
51 
52 
54 (
55  const word& name,
56  const dictionary& dict
57 )
58 :
59  rigidBody(name, rigidBodyInertia()),
60  r_(dict.lookup<scalar>("radius"))
61 {
62  const scalar m(dict.lookup<scalar>("mass"));
63  const vector c(dict.lookup("centreOfMass"));
64  rigidBodyInertia::operator=(rigidBodyInertia(m, c, I(m, r_)));
65 }
66 
67 
68 // * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * * //
69 
70 inline Foam::scalar Foam::RBD::sphere::r() const
71 {
72  return r_;
73 }
74 
75 
76 // ************************************************************************* //
A list of keyword definitions, which are a keyword followed by any number of values (e...
Definition: dictionary.H:156
dimensionedSymmTensor sqr(const dimensionedVector &dv)
scalar m() const
Return the mass of the rigid-body.
rigidBodyInertia()
Null constructor, initialises to zero.
scalar r() const
Return the radius of the sphere.
Definition: sphereI.H:70
static const Identity< scalar > I
Definition: Identity.H:93
const vector & c() const
Return the centre of mass of the rigid-body.
A class for handling words, derived from string.
Definition: word.H:59
rigidBody(const word &name, const scalar &m, const vector &c, const symmTensor &Ic)
Construct from mass, centre of mass and moment of inertia tensor.
Definition: rigidBodyI.H:29
sphere(const word &name, const scalar m, const vector &c, const scalar r)
Construct from name, mass, centre of mass and radius.
Definition: sphereI.H:41
ITstream & lookup(const word &, bool recursive=false, bool patternMatch=true) const
Find and return an entry data stream.
Definition: dictionary.C:844