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Adjoint Differentiation of a Structural Dynamics Solver-
incollection
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Area Structural Dynamics |
Author(s)
Mohamed Tadjouddine
, Shaun A. Forth
, Andy J. Keane
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Published in Automatic Differentiation: Applications, Theory, and Implementations
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Editor(s) H. M. Bücker, G. Corliss, P. Hovland, U. Naumann, B. Norris |
Year 2005 |
Publisher Springer |
Abstract The design of a satellite boom using passive vibration control by Keane [J. of Sound and Vibration, 1995, 185(3), 441--453] has previously been carried out using an energy function of the design geometry aimed at minimising mechanical noise and vibrations. To minimise this cost function, a Genetic Algorithm (GA) was used, enabling modification of the initial geometry for a better design. To improve efficiency, it is proposed to couple the GA with a local search method involving the gradient of the cost function. In this paper, we detail the generation of an adjoint solver by automatic differentiation via ADIFOR. This has resulted in a gradient code that runs in .4 times the time of the function evaluation. This should reduce the rather time-consuming process (over CPU days by using parallel processing) of the GA optimiser for this problem. |
Cross-References Bucker2005ADA |
AD Tools ADIFOR |
Related Applications
- Design of a Satellite Boom
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BibTeX
@INCOLLECTION{
Tadjouddine2005ADo,
author = "Mohamed Tadjouddine and Shaun A. Forth and Andy J. Keane",
title = "Adjoint Differentiation of a Structural Dynamics Solver",
editor = "H. M. B{\"u}cker and G. Corliss and P. Hovland and U. Naumann and B.
Norris",
booktitle = "Automatic Differentiation: {A}pplications, Theory, and Implementations",
series = "Lecture Notes in Computational Science and Engineering",
publisher = "Springer",
year = "2005",
abstract = "The design of a satellite boom using passive vibration control by Keane [J. of
Sound and Vibration, 1995, 185(3), 441--453] has previously been carried out using an energy
function of the design geometry aimed at minimising mechanical noise and vibrations. To minimise
this cost function, a Genetic Algorithm (GA) was used, enabling modification of the initial geometry
for a better design. To improve efficiency, it is proposed to couple the GA with a local search
method involving the gradient of the cost function. In this paper, we detail the generation of an
adjoint solver by automatic differentiation via Adifor. This has resulted in a gradient code that
runs in .4$ times the time of the function evaluation. This should reduce the rather time-consuming
process (over $ CPU days by using parallel processing) of the GA optimiser for this problem.",
crossref = "Bucker2005ADA",
ad_area = "Structural Dynamics",
ad_tools = "ADIFOR",
pages = "309--319",
doi = "10.1007/3-540-28438-9_27"
}
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