Optimal synthesis of passive adaptive structural networks for damping and stiffness improvement

Soobum Lee; Fabio Semperlotti

doi:10.1117/12.2045256

9 March 2014 Optimal synthesis of passive adaptive structural networks for damping and stiffness improvement

Soobum Lee, Fabio Semperlotti

Proceedings Volume 9057, Active and Passive Smart Structures and Integrated Systems 2014; 90571T (2014) https://doi.org/10.1117/12.2045256
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2014, San Diego, California, United States

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.

Citation Download Citation

Soobum Lee and Fabio Semperlotti "Optimal synthesis of passive adaptive structural networks for damping and stiffness improvement", Proc. SPIE 9057, Active and Passive Smart Structures and Integrated Systems 2014, 90571T (9 March 2014); https://doi.org/10.1117/12.2045256

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