Robinson, M. (2004) Stress Analysis of HEG Piston. DLR-Interner Bericht. 224-2004 A 05. 64 S.
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Abstract
This report details finite element simulations performed on the High Enthalpy Shock Tunnel, Göttingen (HEG) piston for operation at burst pressures greater than 20 MPa. An axisymmetric finite element grid was used for all simulations. The piston body and brake pads were modelled and simulated under a number of different loading conditions. A uniform pressure of 20 MPa was applied in most cases and prospective burst pressures were determined via linear extrapolation to a safety factor of 1.0. It is recommended that a burst pressure of no more than 50 MPa be used. This equates to a safety factor of 1.5 to initial yielding for the most appropriate analysis (refined nonlinear transient analysis with modified wall/brake/body contact over 20 ms). The use of a safety factor for the piston body is recommended
Item URL in elib: | https://elib.dlr.de/12828/ | ||||||||
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Document Type: | Monograph (DLR-Interner Bericht) | ||||||||
Additional Information: | LIDO-Berichtsjahr=2004, | ||||||||
Title: | Stress Analysis of HEG Piston | ||||||||
Authors: |
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Date: | 2004 | ||||||||
Open Access: | No | ||||||||
Number of Pages: | 64 | ||||||||
Status: | Published | ||||||||
Keywords: | Stress Analysis, Piston, HEG | ||||||||
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): | UNSPECIFIED | ||||||||
Location: | Köln-Porz , Braunschweig , Göttingen | ||||||||
Institutes and Institutions: | Institute of Aerodynamics and Flow Technology | ||||||||
Deposited By: | Brennecke-Hosseinzadeh, Dagmar | ||||||||
Deposited On: | 31 Jan 2006 | ||||||||
Last Modified: | 14 Jan 2010 19:33 |
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