Stochastic dynamics of a parametrically base excited rotating pendulum

Research output: Contribution to journalConference article

Authors

Colleges, School and Institutes

External organisations

  • Heriot-Watt University

Abstract

This paper studies the rotational motion of a parametrically excited pendulum, dynamics of which is governed by a stochastic nonlinear Mathieu equation. The interest to this problem is based on the fact that this motion may be used to harness wave energy, capturing the heaving motion of waves. Thus a narrow band excitation is used, which is modeled as a harmonic process with random phase modulations. It has been established earlier that a relatively large values of noise intensity deteriorate stability of the rotational motion, leading to vibrations. To obtain robust rotational motion a single-degree-of- freedom filter is used.

Details

Original languageEnglish
Pages (from-to)160-168
Number of pages9
JournalProcedia IUTAM
Volume6
Early online date2 Apr 2013
Publication statusPublished - 2013
EventIUTAM Symposium on Multiscale Problems in Stochastic Mechanics 2012 - Karlsruhe, Germany
Duration: 25 Jun 201228 Jun 2012

Keywords

  • Instability, Mathieu equation, Narrow band excitation, Rotational motion

ASJC Scopus subject areas