fastga.models.weight.mass_breakdown.c_systems.c3_avionics_systems_weight module

Python module for navigation systems weight calculation, part of the systems mass computation.

class fastga.models.weight.mass_breakdown.c_systems.c3_avionics_systems_weight.ComputeAvionicsSystemsWeight(**kwargs)[source]

Bases: openmdao.core.explicitcomponent.ExplicitComponent

Weight estimation for avionics systems. Takes into account the weight of: - Instrumentation - Avionics - Electronics

Based on a statistical analysis. See [Ros85a] Torenbeek method. This method might not be suited for modern aircraft with EFIS type cockpit installation according to Roskam.

Store some bound methods so we can detect runtime overrides.

setup()[source]

Declare inputs and outputs.

Available attributes:

name pathname comm options

compute(inputs, outputs, discrete_inputs=None, discrete_outputs=None)[source]

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.

compute_partials(inputs, partials, discrete_inputs=None)[source]

Compute sub-jacobian parts. The model is assumed to be in an unscaled state.

Parameters

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

  • partials (Jacobian) – Sub-jac components written to partials[output_name, input_name]..

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

class fastga.models.weight.mass_breakdown.c_systems.c3_avionics_systems_weight.ComputeAvionicsSystemsWeightFromUninstalled(**kwargs)[source]

Bases: openmdao.core.explicitcomponent.ExplicitComponent

Weight estimation for avionics systems. Takes into account the weight of: - Instrumentation - Avionics - Navigation

Based on a statistical analysis. See [Gud13].

Store some bound methods so we can detect runtime overrides.

setup()[source]

Declare inputs and outputs.

Available attributes:

name pathname comm options

compute(inputs, outputs, discrete_inputs=None, discrete_outputs=None)[source]

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.

compute_partials(inputs, partials, discrete_inputs=None)[source]

Compute sub-jacobian parts. The model is assumed to be in an unscaled state.

Parameters

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

  • partials (Jacobian) – Sub-jac components written to partials[output_name, input_name]..

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