Title

Use Of Magnetorheological Elastomer For Smart Piezoelectric Power Actuator Design And Signal Processing

Keywords

Magnetorheological elastomer; Piezoelectric power actuator; Time-frequency signal processing

Abstract

This paper reviews the investigations of introducing magnetorheological elastomer (MRE)-based technologies to the design of smart electronic devices. Piezoelectric power actuators are required to operate at a resonant state in order to deliver maximum mechanical energy to loads. Owing to the field-dependent dynamic flexural rigidity of MRE-based structures, power actuators utilizing such structures exhibit the capability of compensating the change of the loads and keeping the resonant frequency at a fixed value. Four kinds of bender configurations for such smart actuators will be reviewed. They are: a cantilever suspended by an MRE patch at its free end, a single-layer MRE-based sandwich beam surface-bonded by piezoelectric patches, a multi-layer MRE-based sandwich beam surface-bonded by piezoelectric patches, and an inserts reinforced MRE-based sandwich beams surface-bonded by piezoelectric patches. Their driving capability and field-controllable capability are discussed in a detail. In addition, MRE-based structures are extended to propose linear time-variant systems for time-frequency signal processing. The system function is presented and the Wigner-Ville distribution is used to analyze the time-frequency distribution of the time-delayed response of the system. The system is proved to be a damped-vibration system with field-controllable resonant frequencies. Due to the fieldcontrollable time-frequency pattern of the time-delayed response, the system can be used for data encryption and signal modulation.

Publication Date

9-29-2005

Publication Title

Proceedings of SPIE - The International Society for Optical Engineering

Volume

5764

Number of Pages

411-420

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

DOI Link

https://doi.org/10.1117/12.598431

Socpus ID

25144443275 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/25144443275

This document is currently not available here.

Share

COinS