pyleecan.Classes.ModelBH_Langevin module

Method code available at https://github.com/Eomys/pyleecan/tree/master/pyleecan/Methods/Material/ModelBH_Langevin

class ModelBH_Langevin(Bs=None, a=None, param1=1.89, param2=240, Bmax=2.31, Hmax=None, delta=100, init_dict=None, init_str=None)

Bases: ModelBH

Abstract class for BH curve model

VERSION = 1

get_BH()

Return the B(H) curve of the material according to Langevin model.

Parameters:

self (ModelBH) – a ModelBH object

Returns:

BH – B(H) values (two colums matrix: H and B(H))

Return type:

numpy.ndarray

BH_func(H, Bs, a)

Return the B from H according to Langevin model.

Parameters:

self (ModelBH_Langevin) – a ModelBH_Langevin object

Returns:

B – B(H) values

Return type:

numpy.ndarray

save(save_path='', is_folder=False, type_handle_old=2, type_compression=0)

Save the object to the save_path

Parameters:

• self – A pyleecan object

• save_path (str) – path to the folder to save the object

• is_folder (bool) – to split the object in different files: separate simulation machine and materials (json only)

• type_handle_old (int) – How to handle old file in folder mode (0:Nothing, 1:Delete, 2:Move to “Backup” folder)

• type_compression (int) – Available only for json, 0: no compression, 1: gzip

get_logger()

Get the object logger or its parent’s one

Parameters:

obj – A pyleecan object

Returns:

logger – Pyleecan object dedicated logger

Return type:

logging.Logger

compare(other, name='self', ignore_list=None, is_add_value=False)

Compare two objects and return list of differences

as_dict(type_handle_ndarray=0, keep_function=False, **kwargs)

Convert this object in a json serializable dict (can be use in __init__). type_handle_ndarray: int

How to handle ndarray (0: tolist, 1: copy, 2: nothing)

keep_functionbool

True to keep the function object, else return str

Optional keyword input parameter is for internal use only and may prevent json serializability.

copy()

Creates a deepcopy of the object

property Bs

To enforc Saturation flux density

Type:

float

property a

To enforce Saturation parameter a

Type:

float

property param1

Init value for Bs for fitting algorithm

Type:

float

property param2

Init value for a for fitting algorithm

Type:

float