Table of Contents
Smart Materials Research
Volume 2012, Article ID 797319, 9 pages
http://dx.doi.org/10.1155/2012/797319
Research Article

Design for the Damping of a Railway Collector Based on the Application of Shape Memory Alloys

1Department of Mechanical Engineering, Politecnico di Milano, Via La Masa, 20156 Milano, Italy
2Institute for Energetics and Interphases, National Research Council (CNR), Corso Promessi Sposi, 23900 Lecco, Italy

Received 6 August 2012; Revised 21 November 2012; Accepted 28 November 2012

Academic Editor: Hideki Hosoda

Copyright © 2012 M. Bocciolone et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

A new design of a Cu based SMA/GFRP lateral horn of a railway collector is proposed. Synergistic contribution of the performance parameters associated with the SMA, including specific damping, specific stiffness, and volume fraction, as well as those associated with the host composite such as flexural rigidity, SMA through-the-thickness location, and SMA-host interfacial strength, is taken into account. The aim is to increase the structural damping of the first flexural mode of the horn without significantly changing its flexural stiffness and weight. The focus of this work also applies to manufacturability and the cost effectiveness of the component for future industrial production.