A parametric study of the nonlinear dynamics and sensitivity of a beam-rigid body microgyroscope

摘要

The nonlinear dynamical features of a gyroscopic system manifesting in a rotation rate sensor are presented. A computational shooting method and Floquet multipliers are used to characterize the response. Response characteristics are demonstrated and studied by generating various frequency-response plots, force-response curves, time-history plots, and phase-portraits. The effects of varying the DC bias voltages, the AC drive-voltage and drive frequency, and the quality factors on the system response are studied in detail. The advantages of operating in the nonlinear regime are shown to appear in larger bandwidth and higher sensitivity. (C) 2017 Elsevier B.V. All rights reserved.