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EXPERT Open Flap Instrumentation and its Ground Qualification

Gülhan, Ali and Thiele, Thomas and Siebe, Frank and Häberle, Jürgen (2008) EXPERT Open Flap Instrumentation and its Ground Qualification. In: Proceedings of the 6th European Symposium on Aerothermodynamics for Space Vehicles, SP-659. 6th European Symposium on Aerothermodynamics for Space Vehicles, 2008-11-03 - 2008-11-06, Versailles, Frankreich.

Full text not available from this repository.

Abstract

The open flaps of the EXPERT capsule with a ballistic re-entry trajectory aero exposed to severe aerothermal and mechanical loads. In order to gain data on the aerothermal phenomena like shock wave boundary layer interaction and radiative heat transfer the flaps are instrumented with reliable pressure and temperature sensors. Two of the four flaps are instrumented with five pressure ports each, fourteen thermocopules for the first flap and ten for the second flap. In addition, heat flux sensors, thermocouples and a pressure port are integrated into the cavities, which are exposed to the thermal radiation from the rear surfaces of the flaps. Special attention was paid to the flap pressure port, which consists of CMC and metallic components. The successful aerothermal qualification test confirmed the reliability of the design and the numerical simulations performed with the ANSYS tool. Some problems encountered during the first severe vibration tests on the electronic box required a design change. The new mechanical design of the PCB card mounting based on a detailed structural analysis was successful and all components of the Payload passed the sinusoidal and random vibration qualitication tests.

Document Type:Conference or Workshop Item (Speech, Paper)
Title:EXPERT Open Flap Instrumentation and its Ground Qualification
Authors:
AuthorsInstitution or Email of Authors
Gülhan, AliUNSPECIFIED
Thiele, ThomasUNSPECIFIED
Siebe, FrankUNSPECIFIED
Häberle, JürgenRWTH Aachen
Date:6 November 2008
Journal or Publication Title:Proceedings of the 6th European Symposium on Aerothermodynamics for Space Vehicles
Refereed publication:No
In SCOPUS:No
In ISI Web of Science:No
Volume:SP-659
Editors:
EditorsEmail
ESA Publication Division, UNSPECIFIED
Status:Accepted
Keywords:Flight instrumentation, EXPERT capsule, Shock wave boundary layer interaction, Pressure ports, Thermocouples, Heat flux sensors, Qualification tests
Event Title:6th European Symposium on Aerothermodynamics for Space Vehicles
Event Location:Versailles, Frankreich
Event Type:international Conference
Event Dates:2008-11-03 - 2008-11-06
Organizer:ESA
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W RP - Raumtransport
DLR - Research area:Space
DLR - Program:W RP - Raumtransport
DLR - Research theme (Project):W - Grundlagen Raumtransport - Anlagen und Messtechnik (old)
Location: Köln-Porz , Braunschweig , Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology
Deposited By: Christine Adams
Deposited On:12 Jan 2009
Last Modified:27 Apr 2009 15:42

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