Jumps and bi-stability in the phase-gain characteristics of a nonlinear parametric amplifier

Stefan Neumeyer, Ruud van de Looij, Jon Juel Thomsen

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review


This work experimentally investigates the impact of nonlinearity on macromechanical parametric amplification. For a strong cubic stiffness nonlinearity we observe jumps in gain (ratio of steady-state vibration amplitude of the externally and parametrically excited system, to vibration amplitude of the externally excited only system) as function of the phase between the external and parametric excitation. These jumps occur at different phase values dependent on up- and downsweeps. Furthermore, an increasing asymmetric phase-gain relationship was observed for strong nonlinearity.
Original languageEnglish
Title of host publicationENOC 2014 - Proceedings of 8th European Nonlinear Dynamics Conference
EditorsHorst Ecker, Alois Steindl, Stefan Jakubek
Number of pages2
PublisherVienna University of Technology
Publication date2014
ISBN (Electronic)978-3-200-03433-4
Publication statusPublished - 2014
Event8th European Nonlinear Dynamics Conference - Vienna, Austria
Duration: 6 Jul 201411 Jul 2014
Conference number: 8


Conference8th European Nonlinear Dynamics Conference
Internet address


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