hydesign.utils

Classes

hybridization_shifted

Class to inherit from when all output variables are explicit.

Functions

get_weights(grid, xtgt, maxorder)	Populates weights for finite difference formulas for derivatives of various orders.
sample_mean(outs)

Module Contents

hydesign.utils.get_weights(grid, xtgt, maxorder)

Populates weights for finite difference formulas for derivatives of various orders.

Parameters:

• grid (array-like) – Target x value where derivatives are approximated

• xtgt (int) – Array of x values

• maxorder (int) – Maximum order of derivative

• Returns

• c (array-like) – Array of weights

• @article{fornberg_generation_1988 – title={Generation of finite difference formulas on arbitrarily spaced grids}, author={Fornberg, Bengt}, journal={Mathematics of computation}, volume={51}, number={184}, pages={699–706}, year={1988} doi={10.1090/S0025-5718-1988-0935077-0} }

:paramtitle={Generation of finite difference formulas on arbitrarily spaced grids},

author={Fornberg, Bengt}, journal={Mathematics of computation}, volume={51}, number={184}, pages={699–706}, year={1988} doi={10.1090/S0025-5718-1988-0935077-0} }

class hydesign.utils.hybridization_shifted(N_limit, life_y, N_time, life_h)

Bases: openmdao.api.ExplicitComponent

Class to inherit from when all output variables are explicit.

Parameters:

**kwargs (dict of keyword arguments) – Keyword arguments that will be mapped into the Component options.

_has_compute_partials

If True, the instance overrides compute_partials.

Type:

bool

N_limit

life_y

life_h

N_time

setup()

Declare inputs and outputs.

Available attributes:

name pathname comm options

compute(inputs, outputs)

Compute outputs given inputs. The model is assumed to be in an unscaled state.

Parameters:

• inputs (Vector) – Unscaled, dimensional input variables read via inputs[key].

• outputs (Vector) – Unscaled, dimensional output variables read via outputs[key].

• discrete_inputs (dict or None) – If not None, dict containing discrete input values.

• discrete_outputs (dict or None) – If not None, dict containing discrete output values.

hydesign.utils.sample_mean(outs)