o3seespy.algorithm

class o3seespy.command.algorithm.AlgorithmBase

Bases: OpenSeesObject

op_base_type = 'algorithm'

reapply(osi)

to_process(osi)

class o3seespy.command.algorithm.BFGS(osi, secant=False, initial=False, count=10)

Bases: AlgorithmBase

op_type = 'BFGS'

class o3seespy.command.algorithm.Broyden(osi, secant=False, initial=False, count=10)

Bases: AlgorithmBase

op_type = 'Broyden'

class o3seespy.command.algorithm.KrylovNewton(osi, tang_inter='current', tang_incr='current', max_inter=3)

Bases: AlgorithmBase

Parameters

• osi –

• tang_inter (str) – options are: ‘current’, ‘initial’, ‘noTangent’

• tang_incr –

• max_inter –

op_type = 'KrylovNewton'

class o3seespy.command.algorithm.Linear(osi, secant=False, initial=False, factor_once=False)

Bases: AlgorithmBase

op_type = 'Linear'

class o3seespy.command.algorithm.ModifiedNewton(osi, secant=False, initial=False)

Bases: AlgorithmBase

Parameters

• osi –

• secant (bool) – Flag to indicate to use secant stiffness.

• initial (bool) – Flag to indicate to use initial stiffness

• max_inter –

op_type = 'ModifiedNewton'

class o3seespy.command.algorithm.Newton(osi, secant=False, initial=False, initial_then_current=False)

Bases: AlgorithmBase

op_type = 'Newton'

class o3seespy.command.algorithm.NewtonLineSearch(osi, search_type=None, tol=None, max_iter=None, min_eta=None, max_eta=None)

Bases: AlgorithmBase

Parameters

• osi –

• search_type – str

• tol – default 0.8

• max_iter – default=10

• min_eta – deault=0.1

• max_eta – default=10

op_type = 'NewtonLineSearch'

class o3seespy.command.algorithm.RaphsonNewton(osi, iterate='current', increment='current')

Bases: AlgorithmBase

op_type = 'RaphsonNewton'

class o3seespy.command.algorithm.SecantNewton(osi, iterate='current', increment='current', maxDim=3)

Bases: AlgorithmBase

op_type = 'SecantNewton'