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Advanced Modeling and Trajectory Optimization Framework for Reusable Launch Vehicles

Briese, Lale Evrim und Schnepper, Klaus und Acquatella B., Paul (2018) Advanced Modeling and Trajectory Optimization Framework for Reusable Launch Vehicles. In: IEEE Aerospace Conference Proceedings. IEEE Aerospace Conference, 03.-10. März 2018, Big Sky, USA. doi: 10.1109/AERO.2018.8396704.

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Kurzfassung

Launch vehicle dynamics modeling, simulation, and trajectory optimization within a single modeling tool is a challenging task due to the highly interconnected disciplines involved such as propulsion, aerodynamics, structures, mechanisms, and GNC, amongst others. In particular, changing environmental conditions and perturbations have to be considered throughout the ascent of expendable launch vehicles (ELV) as well as in the more complex scenario of the ascent and descent of reusable launch vehicles (RLV). Both the multidisciplinary design approach and the vehicle's mission definition can have considerable consequences for the overall modeling and optimization strategy. Therefore, a standardized modeling tool able to meet design requirements for a broad range of mission scenarios from vertical takeoff vertical landing (VTVL) to winged horizontal takeoff horizontal landing (HTHL) configurations is needed. Dedicated developments of multidisciplinary frameworks for launch vehicle modeling and preliminary design optimization have been presented in the relevant literature and also developed in the industry. It is common that the modeling of launch vehicles is performed by several independent, discipline-specific tools. With such an approach, only a limited amount of interactions of the involved disciplines with the overall system dynamics can be accounted for. Therefore, we propose a new multidisciplinary modeling framework considering all relevant effects on the system dynamics of launch vehicles using the object-oriented, equation-based, multi-physical, and acausal modeling language MODELICA. By capitalizing MODELICA's modeling capabilities, the framework enables the object-oriented and mathematically efficient modeling of subsystems and components related to most of the key disciplines of a launcher system. Another objective of this paper is to present a subset of the modeling framework for expendable and reusable launch vehicles regarding Functional Mock-up Units (FMU) and to demonstrate the advantages and capabilities of such a modeling approach within a combined trajectory optimization of the ascent and descent phases of launch vehicles. The modeling framework is shown for a standardized three degrees of freedom (3-DOF) model, covering the kinematics and dynamics formulation, environmental effects, aerodynamics, and propulsion models for system dynamics and subsequent trajectory simulations. The 3-DOF launch vehicle model is integrated as an FMU into the Trajectory Optimization Package trajOpt of DLR-SR's multi-objective optimization tool MOPS. The benefits of our modeling framework are discussed in terms of future rigid and flexible multibody modeling capabilities as well as GNC design and trade-off studies.

elib-URL des Eintrags:https://elib.dlr.de/120444/
Dokumentart:Konferenzbeitrag (Vortrag)
Titel:Advanced Modeling and Trajectory Optimization Framework for Reusable Launch Vehicles
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iDORCID Put Code
Briese, Lale EvrimLale.Briese (at) dlr.dehttps://orcid.org/0000-0003-0900-2005NICHT SPEZIFIZIERT
Schnepper, KlausKlaus.Schnepper (at) dlr.deNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Acquatella B., PaulPaul.Acquatella (at) dlr.dehttps://orcid.org/0000-0002-0826-6984NICHT SPEZIFIZIERT
Datum:2018
Erschienen in:IEEE Aerospace Conference Proceedings
Referierte Publikation:Ja
Open Access:Nein
Gold Open Access:Nein
In SCOPUS:Ja
In ISI Web of Science:Nein
DOI:10.1109/AERO.2018.8396704
Status:veröffentlicht
Stichwörter:launch vehicle modeling, multiphase and multi-objective trajectory optimization, MOPS trajOpt, Functional Mock-up Unit, FMU, Modelica, reusable launch vehicles
Veranstaltungstitel:IEEE Aerospace Conference
Veranstaltungsort:Big Sky, USA
Veranstaltungsart:internationale Konferenz
Veranstaltungsdatum:03.-10. März 2018
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Raumfahrt
HGF - Programmthema:Raumtransport
DLR - Schwerpunkt:Raumfahrt
DLR - Forschungsgebiet:R RP - Raumtransport
DLR - Teilgebiet (Projekt, Vorhaben):Proj RLV-Schlüsseltechnologien (alt), R - Projekt X-TRAS (alt)
Standort: Oberpfaffenhofen
Institute & Einrichtungen:Institut für Systemdynamik und Regelungstechnik > Raumfahrt-Systemdynamik
Institut für Systemdynamik und Regelungstechnik > Flugzeug-Systemdynamik
Hinterlegt von: Briese, Lale Evrim
Hinterlegt am:22 Jun 2018 16:18
Letzte Änderung:21 Jul 2023 11:24

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