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Proceedings Paper

Optimal synthesis of passive adaptive structural networks for damping and stiffness improvement
Author(s): Soobum Lee; Fabio Semperlotti
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Paper Abstract

The increasing interest in engineering systems with excellent mitigation of vibration and shock has required novel design approaches which provide systems with passive adaptive performance across the different fields of engineering. In this paper we present a novel modular design concept to synthesize passive adaptive structures upon a varied loading condition. This concept interconnects linear and nonlinear structural elements depending on the scale and performance requested to the final structural system. To realize this concept we developed a structural synthesis tool integrated with the genetic algorithm. The design optimization problem is formulated considering the prescribed design requirement on stiffness and damping performance. This tool optimally synthesizes the structural network by assembling the available constitutive elements in the set and successfully obtains passive adaptive assembly upon a varied loading condition in terms of vibration amplitude and frequency.

Paper Details

Date Published: 9 March 2014
PDF: 12 pages
Proc. SPIE 9057, Active and Passive Smart Structures and Integrated Systems 2014, 90571T (9 March 2014); doi: 10.1117/12.2045256
Show Author Affiliations
Soobum Lee, Univ. of Maryland, Baltimore County (United States)
Fabio Semperlotti, Univ. of Notre Dame (United States)

Published in SPIE Proceedings Vol. 9057:
Active and Passive Smart Structures and Integrated Systems 2014
Wei-Hsin Liao, Editor(s)

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