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Thermal analysis of thin-walled deployable composite boom in simulated space environment

Thermal analysis of thin-walled deployable composite boom in simulated space environment
Thermal analysis of thin-walled deployable composite boom in simulated space environment
This paper seeks to investigate thermal behaviour of a thin-walled deployable composite boom (DCB) in a space environment using ground thermal-vacuum test and FEA methods. Thermal tests simulating a space environment include three key conditions, namely ultra-high level of vacuum (lower than 10-5 Pa), heat sink (-180℃) that is realized using black panels with the liquid-nitrogen cooling system and thermal loading that is achieved through infrared lamps. The thermal tests of the DCB under seven typical heat fluxes were conducted to characterize heat transfer mechanisms and to obtain temperature fields. The basic heat transfer methods for the DCB in a space environment were surface radiation, cavity radiation and heat conduction. These led to significant temperature difference and gradient occurring on the irradiated and shadowed parts of the DCB at nighttime and daytime. FE models were established to predict temperature fields and thermally induced deformation. Good correlation was achieved between experimental and numerical results.
deployable structures, composite boom, thermal analysis, thermally induced deformation, space environment
0263-8223
210-218
Bai, Jiangbo
823a05e0-144e-4dad-97f3-f8d942141e6c
Shenoi, Ramanand
a37b4e0a-06f1-425f-966d-71e6fa299960
Xiong, J.J.
785d6bd7-e6a1-472c-ae43-484f28d646eb
Bai, Jiangbo
823a05e0-144e-4dad-97f3-f8d942141e6c
Shenoi, Ramanand
a37b4e0a-06f1-425f-966d-71e6fa299960
Xiong, J.J.
785d6bd7-e6a1-472c-ae43-484f28d646eb

Bai, Jiangbo, Shenoi, Ramanand and Xiong, J.J. (2017) Thermal analysis of thin-walled deployable composite boom in simulated space environment. Composite Structures, 173, 210-218. (doi:10.1016/j.compstruct.2017.04.022).

Record type: Article

Abstract

This paper seeks to investigate thermal behaviour of a thin-walled deployable composite boom (DCB) in a space environment using ground thermal-vacuum test and FEA methods. Thermal tests simulating a space environment include three key conditions, namely ultra-high level of vacuum (lower than 10-5 Pa), heat sink (-180℃) that is realized using black panels with the liquid-nitrogen cooling system and thermal loading that is achieved through infrared lamps. The thermal tests of the DCB under seven typical heat fluxes were conducted to characterize heat transfer mechanisms and to obtain temperature fields. The basic heat transfer methods for the DCB in a space environment were surface radiation, cavity radiation and heat conduction. These led to significant temperature difference and gradient occurring on the irradiated and shadowed parts of the DCB at nighttime and daytime. FE models were established to predict temperature fields and thermally induced deformation. Good correlation was achieved between experimental and numerical results.

Text
V3_Thermal Analysis for Composite Structures (Prof. Shenoi) - Accepted Manuscript
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More information

Accepted/In Press date: 13 April 2017
Published date: 16 April 2017
Keywords: deployable structures, composite boom, thermal analysis, thermally induced deformation, space environment
Organisations: Civil Maritime & Env. Eng & Sci Unit, Fluid Structure Interactions Group, Southampton Marine & Maritime Institute

Identifiers

Local EPrints ID: 407952
URI: http://eprints.soton.ac.uk/id/eprint/407952
ISSN: 0263-8223
PURE UUID: a8187c64-8ec3-4d50-9848-3b3f1ccf8ad5

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Date deposited: 05 May 2017 01:04
Last modified: 17 Dec 2019 06:11

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