Nonlinear Dynamics of an Electrohydraulic Flapper Nozzle Valve

[+] Author and Article Information
Chong-Jer Liaw

Gull Inc., Smithtown, NY 11787

F. T. Brown

Department of Mechanical Engineering and Mechanics, Lehigh University, Bethlehem, PA 18015

J. Dyn. Sys., Meas., Control 112(2), 298-304 (Jun 01, 1990) (7 pages) doi:10.1115/1.2896139 History: Received November 26, 1986; Revised August 20, 1989; Online March 17, 2008


A nonlinear model of an electrohydraulic flapper-nozzle valve is developed, using an energy-based approach. Nonlinearities are found in the resistances, compliances, and the inertances; the latter produce state-dependent coupling terms. The model is applied to a valve designed for pulse-width modulation (PWM). Most model parameters are derived from a priori design parameters, but some were found from a series of experiments which also served to confirm the model. The valve and its model responded satisfactorily to PWM signals up to 500 Hz.

Copyright © 1990 by The American Society of Mechanical Engineers
Your Session has timed out. Please sign back in to continue.





Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In