def __init__(self, Nrr=150., Izz=10., Kt1=0.1, zb=0., Mqq=100., ycp=0., xb=0., zcp=0., Yvv=100., yg=0., Ixx=10., Kt0=0.1, Xuu=1., xg=0., Zww=100., W=15.4*9.81, m=15.4, B=15.4*9.81, zg=0., Kpp=100., Qt1=-0.001, Qt0=0.001, Iyy=10., yb=0., xcp=0.1):
# become dynamics model
Dynamics.__init__(self)
# constant parameters
self.Nrr, self.Izz, self.Kt1, self.zb, self.Mqq, self.ycp, self.xb, self.zcp, self.Yvv, self.yg, self.Ixx, self.Kt0, self.Xuu, self.xg, self.Zww, self.W, self.m, self.B, self.zg, self.Kpp, self.Qt1, self.Qt0, self.Iyy, self.yb, self.xcp = Nrr, Izz, Kt1, zb, Mqq, ycp, xb, zcp, Yvv, yg, Ixx, Kt0, Xuu, xg, Zww, W, m, B, zg, Kpp, Qt1, Qt0, Iyy, yb, xcp
def __init__(self, model, noisemodel, state, breakpoints=None):
"""
May be used when noise is added to a problem, i. e. for stochastic
differential equations. All responsibility for handling the stochastics
is placed on a "noisemodel" function that is used together with the
derivative model normally used by the solver methods of the solvers
of the Dynamics and StiffDynamics classes.
"""
# First take care of what is inherited:
Dynamics.__init__(self, model, state, breakpoints)
# Then add the separate noise model
self.__noisemodel = noisemodel
def __init__(self, model, noisemodel, state, breakpoints=None):
"""
May be used when noise is added to a problem, i. e. for stochastic
differential equations. All responsibility for handling the stochastics
is placed on a "noisemodel" function that is used together with the
derivative model normally used by the solver methods of the solvers
of the Dynamics and StiffDynamics classes.
"""
# First take care of what is inherited:
Dynamics.__init__(self, model, state, breakpoints)
# Then add the separate noise model
self.__noisemodel = noisemodel
def __init__(self, model, state, breakpoints=None):
"""
Basic initialization for the class. Cf. the Dynamics class for an
explanation of the input parameters.
"""
# First take care of what is inherited:
Dynamics.__init__(self, model, state, breakpoints)
# The explicit solvers presently only work for stacks, lists
# and 'd' arrays:
assert self._mode == 'list', \
"StiffDynamics only handles stacks, lists and 'd' arrays at the moment!"
# History array for the gearX solvers:
self.__prev = [] # For the gearX solvers
def __init__(self, x0, xf):
Dynamics.__init__(self)
self.x0 = np.array(x0, float)
self.xf = np.array(xf, float)
def __init__(self, **kwargs):
# become dynamics model
Dynamics.__init__(self, **kwargs)
