✦ LIBER ✦

FEEDBACK CONTROL OF VIBRATIONS IN A MICROMACHINED CANTILEVER BEAM WITH ELECTROSTATIC ACTUATORS

✍ Scribed by P.K.C. Wang

Publisher: Elsevier Science
Year: 1998
Tongue: English
Weight: 278 KB
Volume: 213
Category: Article
ISSN: 0022-460X
DOI: 10.1006/jsvi.1998.1525

No coin nor oath required. For personal study only.

✦ Synopsis

The problem of feedback control of vibrations in a micromachined cantilever beam with nonlinear electrostatic actuators is considered. Various forms of nonlinear feedback controls depending on localized spatial averages of the beam velocity and displacement near the beam tip are derived by considering the time rate-of-change of the total energy of the beam. The physical implementation of the derived feedback controls is discussed briefly. The dynamic behaviour of the beam with the derived feedback controls is determined by computer simulation.

📜 SIMILAR VOLUMES

VIBRATION CONTROL FOR THE PRIMARY RESONA

VIBRATION CONTROL FOR THE PRIMARY RESONANCE OF A CANTILEVER BEAM BY A TIME DELAY STATE FEEDBACK

✍ A. MACCARI 📂 Article 📅 2003 🏛 Elsevier Science 🌐 English ⚖ 157 KB

The primary resonance of a cantilever beam under state feedback control with a time delay is investigated. By means of the asymptotic perturbation method, two slow-flow equations on the amplitude and phase of the oscillator are obtained and external excitation-response and frequency-response curves

A CONTROLLABILITY INDEX FOR OPTIMAL DESI

A CONTROLLABILITY INDEX FOR OPTIMAL DESIGN OF PIEZOELECTRIC ACTUATORS IN VIBRATION CONTROL OF BEAM STRUCTURES

✍ Q. WANG; C.M. WANG 📂 Article 📅 2001 🏛 Elsevier Science 🌐 English ⚖ 489 KB

This paper addresses the controllability aspect in vibration control of beam structures with piezoelectric actuators. First, we model the beam structure with piezoelectric actuators and establish the corresponding state-coupled equation. Based on the state equation, we propose a controllability inde

Stabilization of Vibrating Beam with a T

Stabilization of Vibrating Beam with a Tip Mass Controlled by Combined Feedback Forces

✍ Shengjia Li; Yiaoting Wang; Zhandong Liang; Jingyuan Yu; Guangtian Zhu 📂 Article 📅 2001 🏛 Elsevier Science 🌐 English ⚖ 164 KB

asymptotic analysis of the system's eigenvalues and eigenfunctions is set up. We Ž . prove that all of the generalized eigenfunctions of 2.9 form a Riesz basis of H H. By a new method, we prove that the operator A A generates a C contraction semigroup 0 Ž . Ž . T t , t G 0. Furthermore T t , t G 0,