Importance of enclosed gas for modal analysis of space inflatable structure

Fei Liu; Wei Liang He

doi:10.4028/www.scientific.net/AMR.1016.244

Importance of enclosed gas for modal analysis of space inflatable structure

Fei Liu
, Wei Liang He^*

^*Corresponding author for this work

School of Astronautics

Beihang University

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

The stress distribution and modal characteristics of a space inflatable torus is investigated using the nonlinear finite element method. This paper focused on the effect of enclosed air on the modal analysis of the torus, including the effect of follower pressure load and the effect of the interaction between the enclosed air and the torus structure. Research shows that follower pressure stiffness significantly reduces the natural frequencies and changes mode shapes order. The fluid-structure interaction obviously reduces the natural frequencies, and the in-plane translation mode is observed. Follower pressure stiffness has no effect on the in-plane translation mode. Fluid-structure interaction decreases the natural frequencies of the modal considering the follower load effect, but it does not change mode shapes order. The effect of enclosed gas seriously reduces the natural frequencies, changes mode shapes order, and produces the in-plane translation mode.

Original language	English
Title of host publication	Mechanical and Aerospace Engineering V
Publisher	Trans Tech Publications Ltd
Pages	244-248
Number of pages	5
ISBN (Print)	9783038352235
DOIs	https://doi.org/10.4028/www.scientific.net/AMR.1016.244
State	Published - 2014
Event	5th International Conference on Mechanical and Aerospace Engineering, ICMAE 2014 - Madrid, Spain Duration: 18 Jul 2014 → 19 Jul 2014

Publication series

Name	Advanced Materials Research
Volume	1016
ISSN (Print)	1022-6680
ISSN (Electronic)	1662-8985

Conference

Conference	5th International Conference on Mechanical and Aerospace Engineering, ICMAE 2014
Country/Territory	Spain
City	Madrid
Period	18/07/14 → 19/07/14

Keywords

FEM
Fluid-structure interaction
Follower pressure load
Modal analysis
Space inflatable structure

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10.4028/www.scientific.net/AMR.1016.244

Cite this

@inproceedings{245eec35246b4d85bf5c484177518cf4,

title = "Importance of enclosed gas for modal analysis of space inflatable structure",

abstract = "The stress distribution and modal characteristics of a space inflatable torus is investigated using the nonlinear finite element method. This paper focused on the effect of enclosed air on the modal analysis of the torus, including the effect of follower pressure load and the effect of the interaction between the enclosed air and the torus structure. Research shows that follower pressure stiffness significantly reduces the natural frequencies and changes mode shapes order. The fluid-structure interaction obviously reduces the natural frequencies, and the in-plane translation mode is observed. Follower pressure stiffness has no effect on the in-plane translation mode. Fluid-structure interaction decreases the natural frequencies of the modal considering the follower load effect, but it does not change mode shapes order. The effect of enclosed gas seriously reduces the natural frequencies, changes mode shapes order, and produces the in-plane translation mode.",

keywords = "FEM, Fluid-structure interaction, Follower pressure load, Modal analysis, Space inflatable structure",

author = "Fei Liu and He, \{Wei Liang\}",

year = "2014",

doi = "10.4028/www.scientific.net/AMR.1016.244",

language = "英语",

isbn = "9783038352235",

series = "Advanced Materials Research",

publisher = "Trans Tech Publications Ltd",

pages = "244--248",

booktitle = "Mechanical and Aerospace Engineering V",

address = "瑞士",

note = "5th International Conference on Mechanical and Aerospace Engineering, ICMAE 2014 ; Conference date: 18-07-2014 Through 19-07-2014",

}

Liu, F & He, WL 2014, Importance of enclosed gas for modal analysis of space inflatable structure. in Mechanical and Aerospace Engineering V. Advanced Materials Research, vol. 1016, Trans Tech Publications Ltd, pp. 244-248, 5th International Conference on Mechanical and Aerospace Engineering, ICMAE 2014, Madrid, Spain, 18/07/14. https://doi.org/10.4028/www.scientific.net/AMR.1016.244

TY - GEN

T1 - Importance of enclosed gas for modal analysis of space inflatable structure

AU - Liu, Fei

AU - He, Wei Liang

PY - 2014

Y1 - 2014

N2 - The stress distribution and modal characteristics of a space inflatable torus is investigated using the nonlinear finite element method. This paper focused on the effect of enclosed air on the modal analysis of the torus, including the effect of follower pressure load and the effect of the interaction between the enclosed air and the torus structure. Research shows that follower pressure stiffness significantly reduces the natural frequencies and changes mode shapes order. The fluid-structure interaction obviously reduces the natural frequencies, and the in-plane translation mode is observed. Follower pressure stiffness has no effect on the in-plane translation mode. Fluid-structure interaction decreases the natural frequencies of the modal considering the follower load effect, but it does not change mode shapes order. The effect of enclosed gas seriously reduces the natural frequencies, changes mode shapes order, and produces the in-plane translation mode.

AB - The stress distribution and modal characteristics of a space inflatable torus is investigated using the nonlinear finite element method. This paper focused on the effect of enclosed air on the modal analysis of the torus, including the effect of follower pressure load and the effect of the interaction between the enclosed air and the torus structure. Research shows that follower pressure stiffness significantly reduces the natural frequencies and changes mode shapes order. The fluid-structure interaction obviously reduces the natural frequencies, and the in-plane translation mode is observed. Follower pressure stiffness has no effect on the in-plane translation mode. Fluid-structure interaction decreases the natural frequencies of the modal considering the follower load effect, but it does not change mode shapes order. The effect of enclosed gas seriously reduces the natural frequencies, changes mode shapes order, and produces the in-plane translation mode.

KW - FEM

KW - Fluid-structure interaction

KW - Follower pressure load

KW - Modal analysis

KW - Space inflatable structure

UR - https://www.scopus.com/pages/publications/84906990770

U2 - 10.4028/www.scientific.net/AMR.1016.244

DO - 10.4028/www.scientific.net/AMR.1016.244

M3 - 会议稿件

AN - SCOPUS:84906990770

SN - 9783038352235

T3 - Advanced Materials Research

SP - 244

EP - 248

BT - Mechanical and Aerospace Engineering V

PB - Trans Tech Publications Ltd

T2 - 5th International Conference on Mechanical and Aerospace Engineering, ICMAE 2014

Y2 - 18 July 2014 through 19 July 2014

ER -

Importance of enclosed gas for modal analysis of space inflatable structure

Abstract

Publication series

Conference

Keywords

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