yaml_info module

class yaml_info.YamlInfo(eta_nominal, xy_landmarks, chord_grid, chord_values, twist_grid, twist_values, pitch_axis_grid, pitch_axis_values, shift_grid=None, shift_values=None)

Bases: object

add_eta_nominal(eta)

Adding additional nominal cross section between same shapes

Parameters:

eta – list of additional locations

Returns:

calc_angle_interpolator(shift_grid, shift_values)

Create Pchip interpolator of angle of out-of-plane (elastic) rotation in yz plane (in local coord), because airfoil shapes have to be rotated out of xy plane to be normal to y component (in local coord) of ref axis (elastic axis).

Parameters:

• shift_grid – point location along the blade span

• shift_values – shift values at shift_grid points

Returns:

angle interpolator

static calc_shift(airfoils_dict, hub_d)

Shift of the shape after twist rotation (can happen in x and y direction). In yaml file defined in global coordinates. z axis is location along the blade span.

Parameters:

• airfoils_dict – dict from yaml file

• hub_d – distance from hub to shift whole blade in z direction

Returns:

coordinates along the blade and shift values

get_physical_xy(xy_nominal, eta)

static get_xy_coordinates(airfoils_list, nominal_labels)

classmethod init_from_yaml(yaml_filename, n_landmarks=401, landmark_method='planar', add_gap=0)

local_transform(xy_nominal, eta)

make_M_yaml_interpolator()

make_straight_blade()

static read_yamlfile(filename)

shift_to_pitch_axis(etas)