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Wed, Jul 3, 06:57
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rTAMAAS tamaas
kato.hh
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/**
* @file
*
* @author Son Pham-Ba <son.phamba@epfl.ch>
*
* @section LICENSE
*
* Copyright (©) 2016-2018 EPFL (Ecole Polytechnique Fédérale de
* Lausanne) Laboratory (LSMS - Laboratoire de Simulation en Mécanique des
* Solides)
*
* Tamaas is free software: you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License as published by the Free
* Software Foundation, either version 3 of the License, or (at your option) any
* later version.
*
* Tamaas is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
* A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
* details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with Tamaas. If not, see <http://www.gnu.org/licenses/>.
*
*/
/* -------------------------------------------------------------------------- */
#ifndef __KATO_HH__
#define __KATO_HH__
/* -------------------------------------------------------------------------- */
#include "contact_solver.hh"
#include "meta_functional.hh"
#include "model_type.hh"
#include "static_types.hh"
#include "tamaas.hh"
/* -------------------------------------------------------------------------- */
__BEGIN_TAMAAS__
class
Kato
:
public
ContactSolver
{
public
:
/// Constructor
Kato
(
Model
&
model
,
const
GridBase
<
Real
>&
surface
,
Real
tolerance
,
Real
mu
);
public
:
/// Solve
Real
solve
(
GridBase
<
Real
>&
p0
,
UInt
proj_iter
);
/// Solve relaxed problem
Real
solveRelaxed
(
GridBase
<
Real
>&
g0
);
/// Solve regularized problem
Real
solveRegularized
(
GridBase
<
Real
>&
p0
,
Real
r
);
/// Compute cost function
Real
computeCost
();
private
:
/// Template for solve function
template
<
model_type
type
>
Real
solveTmpl
(
GridBase
<
Real
>&
p0
,
UInt
proj_iter
);
/// Template for solveRelaxed function
template
<
model_type
type
>
Real
solveRelaxedTmpl
(
GridBase
<
Real
>&
g0
);
/// Template for solveRegularized function
template
<
model_type
type
>
Real
solveRegularizedTmpl
(
GridBase
<
Real
>&
p0
,
Real
r
);
protected
:
/// Creates surfaceComp form surface
template
<
model_type
type
>
void
initSurfaceWithComponents
();
/// Compute gradient of functional
template
<
UInt
comp
>
void
computeGradient
();
/// Project pressure on friction cone
template
<
UInt
comp
>
void
enforcePressureConstraints
(
GridBase
<
Real
>&
p0
,
UInt
proj_iter
);
/// Project on C
template
<
UInt
comp
>
void
enforcePressureMean
(
GridBase
<
Real
>&
p0
);
/// Project on D
template
<
UInt
comp
>
void
enforcePressureCoulomb
();
/// Comupte mean value of field
template
<
UInt
comp
>
Vector
<
Real
,
comp
>
computeMean
(
GridBase
<
Real
>&
field
);
/// Add vector to each point of field
template
<
UInt
comp
>
void
addUniform
(
GridBase
<
Real
>&
field
,
GridBase
<
Real
>&
vec
);
/// Regularization function with factor r (0 -> unregugularized)
Real
regularize
(
Real
x
,
Real
r
);
/// Compute mean gap
template
<
model_type
type
>
Real
computeBeta
();
/// Compute grids of dual and primal variables
template
<
model_type
type
>
void
computeValuesForCost
(
Real
beta
,
GridBase
<
Real
>&
lambda
,
GridBase
<
Real
>&
eta
,
GridBase
<
Real
>&
p_N
,
GridBase
<
Real
>&
p_C
);
/// Compute total displacement
template
<
UInt
comp
>
void
computeFinalGap
();
protected
:
BEEngine
&
engine
;
GridBase
<
Real
>*
gap
=
nullptr
;
GridBase
<
Real
>*
pressure
=
nullptr
;
std
::
unique_ptr
<
GridBase
<
Real
>>
surfaceComp
=
nullptr
;
Real
mu
=
0
;
UInt
N
=
0
;
// number of points
};
__END_TAMAAS__
#endif
// __KATO_HH__
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