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Expert Open Flap Assembly and its Instrumentation

Gülhan, Ali and Siebe, Frank and Thiele, Thomas and Häberle, Jürgen and Handrick, K. (2009) Expert Open Flap Assembly and its Instrumentation. In: Proceedings of the 6th European Workshop Thermal Protection Systems and Hot Structures. 6th European Workshop Thermal Protection Systems and Hot Structures, 01. - 03. April 2009, Stuttgart, Deutschland.

Full text not available from this repository.

Abstract

The open flap assembly of the EXPERT capsule consists of a CMC flap and a metallic cavity. The ballistic re-entry trajectory of EXPERT causes severe aerothermal and mechanical loads on these components. Two of the four flaps are instrumented with five pressure ports each, fourteen thermocpules 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 vibration and shock tests.

Document Type:Conference or Workshop Item (Speech)
Title:Expert Open Flap Assembly and its Instrumentation
Authors:
AuthorsInstitution or Email of Authors
Gülhan, AliDLR
Siebe, FrankDLR
Thiele, ThomasDLR
Häberle, JürgenAstrium
Handrick, K.MT Aerospace
Date:April 2009
Journal or Publication Title:Proceedings of the 6th European Workshop Thermal Protection Systems and Hot Structures
Status:Published
Keywords:Expert, open flap assembly, instrumentation, CMC flap, sensor integration
Event Title:6th European Workshop Thermal Protection Systems and Hot Structures
Event Location:Stuttgart, Deutschland
Event Type:international Conference
Event Dates:01. - 03. April 2009
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 - Innovativer Thermalschutz (old)
Location: Köln-Porz , Braunschweig , Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Supersonic and Hypersonic Technology
Deposited By: Christine Adams
Deposited On:25 Jan 2010 14:53
Last Modified:07 Nov 2012 11:08

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