Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Sub-Structuring Modeling of Large Space Truss Structures for
  Structure/Control Optimization in Presence of Parametric Uncertainties   Modern and future high precision pointing space missions face increasingly
high challenges related to the widespread use of large flexible structures. The
development of new modeling tools which are able to account for the
multidisciplinary nature of this problem becomes extremely relevant in order to
meet both structure and control performance criteria. This paper proposes a
novel methodology to analytically model large truss structures in a
sub-structuring framework. A three dimensional unit cube element has been
designed and validated with a Finite Element commercial software. This model is
composed by multiple two-dimensional sub-mechanisms assembled using
block-diagram models. This constitutes the building block for constructing
complex truss structures by repetitions of the element. The accurate vibration
description of the system and its minimal representation, as well as the
possibility of accounting for parametric uncertainties in its mechanical
parameters, make it an appropriate tool to perform robust Structure/Control
co-design. In order to demonstrate the strengths of the proposed approach, a
co-design study case is proposed by combining a multidisciplinary optimization
approach based on particle swarm algorithm and multiple structured robust
Hinf-synthesis. This has been used to optimize the pointing performances of an
high pointing antenna, minimizing the perturbations coming from the Solar Array
Mechanisms (SADM) of two solar panels, performing active control by means of
multiple proof mass actuators, and simultaneously reduce the mass of the
truss-structure which connects the antenna to the main spacecraft body.

6
The categories of this paper are: astro-ph
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The categories of this paper are: nucl-ex
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The categories of this paper are: chem-ph
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The categories of this paper are: gr-qc
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The categories of this paper are: adap-org
33
The categories of this paper are: plasm-ph
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The categories of this paper are: ao-sci
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The categories of this paper are: cond-mat
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The categories of this paper are: q-alg
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The categories of this paper are: nucl-th
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The categories of this paper are: hep-ex
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The categories of this paper are: physics
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The categories of this paper are: quant-ph
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The categories of this paper are: math-ph
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The categories of this paper are: alg-geom
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The categories of this paper are: bayes-an