Retrofitting

Application Case: Retrofitting

Ambition: The aim was to evaluate the impact on recurring and non-recurring costs due to a retrofitting operation, while obtaining a sensible improvement on fuel consumption and emissions. The involved retrofitting packages were: i) The Engine Retrofitting, consisting in replacing the baseline engines with an advanced Geared turbofan with a EIS2025+ technologies. ii) The OBS architecture Retrofitting, replacing the conventional OBS with more or all electrification of secondary systems.

Owner:

Integrator:

Specialists:

Structure
Aerodynamics
OBS design
Surrogate models and Optimization
Performance, Mission, Noise and Optimization
Costs

Models

Below you can download the models produced during the development process of this Application Case

Stakeholders, needs and
Requirements

Operational Scenario
Aircraft architectures
MDO formulation – Optimization
Baseline
BPR15_AEA_OBS
BPR9_ConvOBS
You can also found all the document here.

MDO Workflow

Results

You can download all the results here

High fidelity analysis of wing structural layout to estimate the impact of high bypass ratio engine integration and OBS architecture
Results of Multiobjectvie, Multifidelity constrained optimization for a given scenarios highlighting the impacts on Costs and Emissions

Take away

  • The retrofitting process of an existing platform must be carefully analyzed bringing together multiple domains ranging from the design, the manufacturing, the certification.
  • The results achieved allows to trade-off and take decisions on how and if perform such complex activities, reducing risks and speeding up the overall process.

Publication