Nonlinear modal analysis of the SmallSat spacecraft

L. Renson; J. P. Noel; G. Kerschen; A. Newerla

Nonlinear modal analysis of the SmallSat spacecraft

L. Renson^*
, J. P. Noel
, G. Kerschen
, A. Newerla

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference Contribution (Conference Proceeding)

2 Citations (Scopus)

Abstract

Non-linear elements are present in practically all spacecraft structures. When such non-linear effects are important linear modal analysis can no longer be applied. The development of a non-linear analogue of linear modal analysis is therefore an important endeavor. The objective of this paper is to show that nonlinear normal modes (NNMs) represent a useful and practical tool in this context. A full-scale spacecraft structure is considered and is modeled using the finite element method. Its NNMs are computed using advanced numerical algorithms, and the resulting dynamics is then carefully analyzed. Nonlinear phenomena with no linear counterpart including nonlinear modal interactions are also highlighted.

Original language	English
Title of host publication	European Space Agency, (Special Publication) ESA SP
Volume	691 SP
Publication status	Published - 2012
Event	12th European Conference on Spacecraft Structures, Materials and Environmental Testing - Noordwijk, Netherlands Duration: 20 Mar 2012 → 23 Mar 2012

Conference

Conference	12th European Conference on Spacecraft Structures, Materials and Environmental Testing
Country/Territory	Netherlands
City	Noordwijk
Period	20/03/12 → 23/03/12

Keywords

Localization
Modal interaction
Nonlinear modal analysis
Nonlinear normal modes
Spacecraft

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@inproceedings{9c7c29761284462a97d17f2316dbef77,

title = "Nonlinear modal analysis of the SmallSat spacecraft",

abstract = "Non-linear elements are present in practically all spacecraft structures. When such non-linear effects are important linear modal analysis can no longer be applied. The development of a non-linear analogue of linear modal analysis is therefore an important endeavor. The objective of this paper is to show that nonlinear normal modes (NNMs) represent a useful and practical tool in this context. A full-scale spacecraft structure is considered and is modeled using the finite element method. Its NNMs are computed using advanced numerical algorithms, and the resulting dynamics is then carefully analyzed. Nonlinear phenomena with no linear counterpart including nonlinear modal interactions are also highlighted.",

keywords = "Localization, Modal interaction, Nonlinear modal analysis, Nonlinear normal modes, Spacecraft",

author = "L. Renson and Noel, \{J. P.\} and G. Kerschen and A. Newerla",

year = "2012",

language = "English",

isbn = "9789290922551",

volume = "691 SP",

booktitle = "European Space Agency, (Special Publication) ESA SP",

note = "12th European Conference on Spacecraft Structures, Materials and Environmental Testing ; Conference date: 20-03-2012 Through 23-03-2012",

}

TY - GEN

T1 - Nonlinear modal analysis of the SmallSat spacecraft

AU - Renson, L.

AU - Noel, J. P.

AU - Kerschen, G.

AU - Newerla, A.

PY - 2012

Y1 - 2012

N2 - Non-linear elements are present in practically all spacecraft structures. When such non-linear effects are important linear modal analysis can no longer be applied. The development of a non-linear analogue of linear modal analysis is therefore an important endeavor. The objective of this paper is to show that nonlinear normal modes (NNMs) represent a useful and practical tool in this context. A full-scale spacecraft structure is considered and is modeled using the finite element method. Its NNMs are computed using advanced numerical algorithms, and the resulting dynamics is then carefully analyzed. Nonlinear phenomena with no linear counterpart including nonlinear modal interactions are also highlighted.

AB - Non-linear elements are present in practically all spacecraft structures. When such non-linear effects are important linear modal analysis can no longer be applied. The development of a non-linear analogue of linear modal analysis is therefore an important endeavor. The objective of this paper is to show that nonlinear normal modes (NNMs) represent a useful and practical tool in this context. A full-scale spacecraft structure is considered and is modeled using the finite element method. Its NNMs are computed using advanced numerical algorithms, and the resulting dynamics is then carefully analyzed. Nonlinear phenomena with no linear counterpart including nonlinear modal interactions are also highlighted.

KW - Localization

KW - Modal interaction

KW - Nonlinear modal analysis

KW - Nonlinear normal modes

KW - Spacecraft

UR - https://www.scopus.com/pages/publications/84871063732

M3 - Conference Contribution (Conference Proceeding)

AN - SCOPUS:84871063732

SN - 9789290922551

VL - 691 SP

BT - European Space Agency, (Special Publication) ESA SP

T2 - 12th European Conference on Spacecraft Structures, Materials and Environmental Testing

Y2 - 20 March 2012 through 23 March 2012

ER -

Nonlinear modal analysis of the SmallSat spacecraft

Abstract

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Keywords

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