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POLITECNICO DI TORINOI FACOLTA DI INGEGNERIA

TESI DI LAUREA SPECIALISTICA IN INGEGNERIA AEROSPAZIALE

Studio sul comportamento strutturale di un veicolo da rientro atmosferico in fase di ammaraggioIntermediate eXperimental VehicleIntermediate eXperimental VehicleIntermediate eXperimental Vehicle1Part of ESAs Future Launchers Preparatory Programme has been devoted to optimizing a long-term European roadmap for in-flight experimentation with atmospheric re-entry enabling systems and technologies.

Thesis activity

The Intermediate eXperimental Vehicle (IXV) project is the next core step of this effort.

This work has been developed within the IXV project and with closed collaboration of TAS-I and ESA.

Many thanks to ESA and TAS for their support. Thanks also to Altair Engineering for providing the software suite for the analysis.Intermediate eXperimental VehicleIntermediate eXperimental VehicleIntermediate eXperimental VehicleThe IXV Project

1/17Intermediate eXperimental VehicleIntermediate eXperimental VehicleIntermediate eXperimental VehicleExperimental measurements

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Intermediate eXperimental VehicleIntermediate eXperimental VehicleIntermediate eXperimental VehicleModeling methodology3/17Intermediate eXperimental VehicleIntermediate eXperimental VehicleIntermediate eXperimental VehicleIXV numerical model

4/17Intermediate eXperimental VehicleIntermediate eXperimental VehicleIntermediate eXperimental Vehicle

Fluid numerical model

5/17Intermediate eXperimental VehicleIntermediate eXperimental VehicleIntermediate eXperimental VehicleFluid numerical modelWATER BASIN COMPARISONDeep water modelShallow water modelHorizontal1,22 x 2,14 [m]1,22 x 2,14 [m]Vertical0,8 [m]0,4 [m]N Elements335265189317CPU Time8413 [s]5077 [s]

6/17Intermediate eXperimental VehicleIntermediate eXperimental VehicleIntermediate eXperimental VehicleCharacteristic elements dimension2D ELEMENTS (VEHICLE)3D ELEMENTS (AIR)3D ELEMENTS (WATER)HEIGHT20 [mm]20 [mm]20 [mm]WIDTH20 [mm]20 [mm]20 [mm]DEPTH/10 [mm]10 [mm]N ELEMENTS356478324287188

7/17Intermediate eXperimental VehicleIntermediate eXperimental VehicleIntermediate eXperimental Vehicle9Fluid-structure interface

8/17Intermediate eXperimental VehicleIntermediate eXperimental VehicleIntermediate eXperimental Vehicle10Boundary-initial conditions

9/17Intermediate eXperimental VehicleIntermediate eXperimental VehicleIntermediate eXperimental Vehicle11Numerical - Experimental Correlation

10/17Intermediate eXperimental VehicleIntermediate eXperimental VehicleIntermediate eXperimental VehicleFirst LoadcaseAX - COGAZ - COGNumericalExperimental

11/17All curves normalized to 1Intermediate eXperimental VehicleIntermediate eXperimental VehicleIntermediate eXperimental VehicleSecond Loadcase

AX - COGAZ - COGNumericalExperimental12/17All curves normalized to 1Intermediate eXperimental VehicleIntermediate eXperimental VehicleIntermediate eXperimental VehicleThird Loadcase

AX - COGAZ - COGNumericalExperimental13/17All curves normalized to 1Intermediate eXperimental VehicleIntermediate eXperimental VehicleIntermediate eXperimental VehicleThird Loadcase19 deg Sensor35 deg Sensor51 deg SensorNumericalExperimentalNumericalExperimental14/17Intermediate eXperimental VehicleIntermediate eXperimental VehicleIntermediate eXperimental VehicleCorrelation results summary15/17Intermediate eXperimental VehicleIntermediate eXperimental VehicleIntermediate eXperimental VehicleRemarks and further developments16/17Intermediate eXperimental VehicleIntermediate eXperimental VehicleIntermediate eXperimental VehicleThanks for your attention17/17Intermediate eXperimental VehicleIntermediate eXperimental VehicleIntermediate eXperimental Vehicle