Modelling and control of an adaptive tuned mass damper based on shape memory alloys and eddy currents

2015 ◽  
Vol 349 ◽  
pp. 18-38 ◽  
Author(s):  
M. Berardengo ◽  
A. Cigada ◽  
F. Guanziroli ◽  
S. Manzoni
Keyword(s):  
Shape Memory Alloys ◽  
Shape Memory ◽  
Eddy Currents ◽  
Tuned Mass Damper ◽  
Mass Damper ◽  
And Control

A multi-modal adaptive tuned mass damper based on shape memory alloys

2019 ◽  
Vol 30 (4) ◽  
pp. 536-555 ◽  
Author(s):  
Marta Berardengo ◽  
Giovanni EP Della Porta ◽  
Stefano Manzoni ◽  
Marcello Vanali
Keyword(s):  
Shape Memory Alloys ◽  
Shape Memory ◽  
Natural Frequencies ◽  
Tuned Mass Damper ◽  
Wide Frequency Range ◽  
Primary System ◽  
Random Disturbance ◽  
New Device ◽  
Experimental Campaign ◽  
Mass Damper

This article deals with the design of an innovative adaptive multi-modal tuned mass damper able to change its eigenfrequencies to recover shifts of the natural frequencies of the primary system which needs to be damped. This is accomplished using systems of shape memory alloy wires connected to a number of masses equal to the number of modes to be damped. This article presents the analytical model used to describe the behaviour of the adaptive tuned mass damper, showing which parameters can affect the performances of the device. The layout proposed for the tuned mass damper proves to be able to act on a wide frequency range and to work adaptively on at least two eigenfrequencies at the same time with a given level of independence. The last goal is accomplished, thanks to the special features of the shape memory alloys, by heating (or cooling) each wire of the device independently and allowing the exploitation of two different effects: the change of the axial load in the wires and the change of the geometry of the device. The reliability of both the design approach and the model of the new device is proved by means of an experimental campaign performed considering a random disturbance.

Comparative Analysis of a Tuned Mass Damper Using Steel and a Ni-Ti Shape Memory Alloy

2019 ◽  
Author(s):  
Marcelio Ronnie Dantas de Sá ◽  
Armando Wilmans Nunes da Fonseca Júnior ◽  
Yuri Moraes ◽  
Antonio Almeida Silva
Keyword(s):  
Comparative Analysis ◽  
Shape Memory Alloy ◽  
Shape Memory ◽  
Tuned Mass Damper ◽  
Mass Damper

Identification and Control of Shape Memory Alloys

2013 ◽  
Vol 46 (8) ◽  
pp. 252-256 ◽  
Author(s):  
Z Ghasemi ◽  
R Nadafi ◽  
M Kabganian ◽  
R Abiri
Keyword(s):  
Shape Memory Alloys ◽  
Shape Memory ◽  
And Control

Development and Control of a Small Biped Walking Robot Using Shape Memory Alloys

2008 ◽  
Vol 20 (5) ◽  
pp. 793-800 ◽  
Author(s):  
Mami Nishida ◽  
◽  
Hua O. Wang ◽  
Kazuo Tanaka ◽  
Keyword(s):  
Shape Memory Alloys ◽  
Shape Memory ◽  
Control Strategy ◽  
Degrees Of Freedom ◽  
Walking Robot ◽  
Biped Walking ◽  
Walking Behavior ◽  
Elastic Potential Energy ◽  
Biped Walking Robot ◽  
And Control

This paper presents a study on the development and control of a small biped walking robot using shape memory alloys (SMAs). We propose a flexible flat plate (FFP) consisting of a polyethylene plate and SMAs. Based on a detailed investigation of the properties of the SMA-based FFP structure, we develop a lightweight small walking robot incorporating multiple SMA-based FFPs. The walking robot has four degrees of freedom and is controlled by switching the ON-OFF current signals to the SMA-based FFPs. The switching timing, central to the control strategy to achieve walking behavior, is determined through experiments. The small robot realizes biped walking by transferring the elastic potential energy (generated by deflections of the SMA-based FFPs) to kinematic energy. The resulting small biped walking robot weighs a mere 2.8 g (with a height of 70 mm). Our experimental results demonstrate the viability and utility of the small walking robot with the proposed SMA-based FFPs and the control strategy to achieve walking behavior.

An improved tuned mass damper (SMA-TMD) assisted by a shape memory alloy spring

2013 ◽  
Vol 22 (9) ◽  
pp. 095016 ◽  
Author(s):  
Sudib K Mishra ◽  
Sourav Gur ◽  
Subrata Chakraborty
Keyword(s):  
Shape Memory Alloy ◽  
Shape Memory ◽  
Tuned Mass Damper ◽  
Mass Damper
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