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Robust control applications for smart truss structure
(2005-12-01)
A finite element modeling of an intelligent truss structure with piezoelectric stack actuators for the purpose of active damping and structural vibration attenuation is presented. This paper concerns with the following ...
Development of microvalves for gas flow control in micronozzles using PVDF piezoelectric polymer
(2008-03-01)
This work describes a fabrication and test sequence of microvalves installed on micronozzles. The technique used to fabricate the micronozzles was powder blasting. The microvalves are actuators made from PVDF (polivinylidene ...
Active control in flexible plates with piezoelectric actuators using linear matrix inequalities
(2006-12-01)
The study of algorithms for active vibrations control in flexible structures became an area of enormous interest, mainly due to the countless demands of an optimal performance of mechanical systems as aircraft, aerospace ...
Optimal placement of sensors/actuators in truss structures with known disturbances
(2006-12-01)
An important stage in the solution of active vibration control in flexible structures is the optimal placement of sensors and actuators. In many works, the positioning of these devices in systems governed for parameter ...
Coupling rate measurement of a novel multi-actuated piezoelectric device using optical interferometry
(2010-12-01)
The class of piezoelectric actuators considered in this paper consists of a multi-flexible structure actuated by two or more piezoceramic devices that must generate different output displacements and forces at different ...
Nano-displacement measurements of a new piezoelectric flextensional actuator by using a high dynamic range interferometry homodyne method
(IEEE, 2014-05-12)
Piezoelectric flextensional actuator (PFA) devices consist in a technology in development, with increasing number of applications in precision mechanics such as nanotechnology equipments, electronic microscopy instruments, ...
Interferometric measurements of nanometric displacements in a Piezoelectric Flextensional Actuator by using the new J1...J5 method
(IEEE, 2012-12-01)
In this work, nanometric displacement amplitudes of a Piezoelectric Flextensional Actuator (PFA) designed using the topology optimization technique and operating in its linear range are measured by using a homodyne Michelson ...
Dynamic analysis of a new piezoelectric flextensional actuator using the J1-J4 optical interferometric method
(2005-12-01)
Piezoelectric actuators are widely used in positioning systems which demand high resolution such as scanning microscopy, fast mirror scanners, vibration cancellation, cell manipulation, etc. In this work a piezoelectric ...
Vibration control in truss structures using piezoelectric stack actuator and LMI approach
(2008-01-01)
The recent years have seen the appearance of innovative system for acoustic and vibration attenuation, most of them integrating new actuator technologies. In this sense, the study of algorithms for active vibrations control ...
Optimal placement of piezoelectric sensor/actuators for smart structures vibration control
(Chapman & Hall/crc Press, 2004-01-01)
Smart material technology has become an area of increasing interest for the development of lighter and stronger structures that are able to incorporate actuator and sensor capabilities for collocated control. In the design ...