Aircraft Design and nOise RatiNg for regiOnal.
The ADORNO project focuses on the development of aircraft models for a regional aircraft engine platform. The main objective is to provide aircraft requirements (e.g. thrusts, offtakes, etc.) as well as trade factors for specific fuel consumption, engine drag and engine weight on fuel burn for both a year 2014 reference aircraft and a CS2 target aircraft. In addition, an aircraft noise method will be developed and integrated in an aircraft design chain.
The overall work plan is divided in three (4) work packages (WPs), following listed:
Success of the ADORNO project is measured with respect to a reference A/C system, set for a reference aircraft configuration, which will be established in the first phase of the project. The following quantitative objectives ‘measures’ are set:
By the end of February 2019, in agreement with the project schedule shown in the Gantt diagram of the Project section, the first Milestone has been reached.
The Airbus A220-300 has been selected as reference 2014 aircraft model in terms of TLAR to be used for Work Package 2 activities.
The A220-300 is a narrow-body, single-aisle, twin engine, medium-haul jet airliner, previously known as Bombardier CS300.
It has been designed from ground-up and has been initially produced by Bombardier Aerospace, but is currently marketed by Airbus and built by CSeries Aircraft Limited Partnership joint venture (CSALP). It belongs to the Airbus newly branded A220 family.
The following tables provide information and data regarding the principal aircraft characteristics in terms of:
All gathered data comes from several sources, mostly comprising technical documents provided by the manufacturer, official brochures, and EASA type-certificate data sheets.
After the definition of the set of TLAR, the design activities related to the Work Package 2 have been focuesd on the definition of both
Underwing-Mounted engines (UM) and Rear-Mounted engines (RM) configurations related to the reference 2014 aircraft model.
At the end of April 2020, this task has been completed.
Both aircraft configuration has been designed by means of a dedicated MDAO process carried out using the UNINA JPAD software.
As can be seen from the following flowchart, starting from a statistically-defined baseline aircraft model, a population of aircraft has been generated for each configuration by varying lifting surfaces planform parameters and positions, as well as engines longitudinal position in the case of a RM configuration.
Each aircraft model has been analyzed considering a complete multi-disciplinary cycle including weights, balance, ground stability, ground operability, aerodynamics, static stability, performance, emissions, environmental noise and costs.
The result of this process has been a set of response surfaces related to main aircraft characteristics in terms of noise (EPNL) and performance (block fuel)
as shown below.
Using both the design mission block fuel and the EPNL as driving parameters, a multi-objective optimization process has been carried out using a combination of
As a result Pareto fronts for each configuration have been generated allowing the selection of the final optimum aircraft model. Those are shown in the following figure, while a summary of the main results coming from their complete multi-disciplinary analysis cycle is reported in the following tables.
|2020||2||Noise, Emissions and Costs trade factors for regional jet platforms using a new software for aircraft preliminary design||
Nicolosi, F., Della Vecchia, P., Trifari, V., Di Stasio, M., Marulo, F., De Marco, A., Marciello, V., Cusati, V.
AIAA AVIATION 2020 FORUM, June 15-19, 2020, VIRTUAL EVENT
|2019||1||Implementation of a Noise Prediction Software for Civil Aircraft Applications||
Casale, C., Polito, T., Trifari, V., Di Stasio, M., Della Vecchia, P., Nicolosi, F., Marulo, F.
AIDAA XXV International Congress, 9-12 September 2019, Rome, Italy
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