Experimental Study on Vibration Control of Shape Memory Alloy Actuated Flexible Beam

Abstract

This paper describes the development of an experimental platform which analyzes and controls the vibration of a Shape Memory Alloy (SMA) actuated and piezo sensed flexible beam. The vibration is controlled using the interactive force of a pair of almost identical SMA wires connected in an antagonistic manner, arranged in parallel to and on both sides of the cantilever beam structure. Data acquisition and control are implemented using a PCI data acquisition card and LabVIEW. Standard P, PI, ON-OFF controllers have been used to control the first mode of vibration of the flexible beam. Experimental results are used to demonstrate the effectiveness of the controllers designed and usefulness of the proposed test platform by exciting the structure at resonance.

Robot-Assisted Therapy: Design, Control and Optimization

“…For real-time control, two methods are available [11]. One is the use of real-time operating system, see for example [23,24] and the other is the hybrid control system of a PC and a Micro Control Unit (MCU), see for example control applications presented in [11,25]. In this paper we use the second approach.…”

A method for regulating strong nonlinear vibration energy of the flexible arm

“…[1][2][3][4] In recent years, a large number of active control methods are suggested, [5][6][7] and many of them are implemented based on smart materials, like piezoelectric ceramic and shape memory alloy. 8,9 Notwithstanding, they perhaps encounter difficulties in diminishing nonlinear vibration with strong energy. On one hand, strong energy may excite large amplitude, and thus, many nonlinear terms become significant and must be taken into account.…”

Design and experimental evaluation of higher order sliding mode control for vibration suppression of shape memory alloy actuated structure

“…An experimental and theoretical investigation that aimed at demonstrating the feasibility of utilizing Nitinol actuators as a part of an active controller to suppress the vibrations of a flexible beam has been presented by Baz et al, (1990). Experimental study on vibration control using SMA with PID control is studied (Dhanalakshmi et al 2010). Also design and implementation of fast output sampling along with sliding mode control has been demonstrated for structural vibration control by Dhanalakshmi et al (2006.…”

“…Experimental study on vibration control using SMA with PID control is studied (Dhanalakshmi et al 2010). Also design and implementation of fast output sampling along with sliding mode control has been demonstrated for structural vibration control by Dhanalakshmi et al (2006. Indirect intelligent sliding mode control for vibration control of flexible beam using hysteretic recurrent neural network is discussed by Hannen, et al (2013).…”