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Saturday, August 8, 2020 | History

2 edition of Self-tuning regulators for multicyclic control of helicopter vibration found in the catalog.

Self-tuning regulators for multicyclic control of helicopter vibration

Wayne Johnson

Self-tuning regulators for multicyclic control of helicopter vibration

by Wayne Johnson

  • 74 Want to read
  • 22 Currently reading

Published by National Aeronautics and Space Administration, Scientific and Technical Information Branch, For sale by the National Technical Information Service] in Washington, D.C, [Springfield, Va .
Written in English

    Subjects:
  • Helicopters,
  • Vibration (Aeronautics),
  • Stability of helicopters

  • Edition Notes

    StatementWayne Johnson.
    SeriesNASA technical paper -- 1996.
    ContributionsUnited States. National Aeronautics and Space Administration. Scientific and Technical Information Branch.
    The Physical Object
    Paginationvi, 44 p. :
    Number of Pages44
    ID Numbers
    Open LibraryOL18024657M

    A Novel Self -Tuning Control Design Approach for Industrial Applications Richard J. Eucker and Zhiqiang Gao Department of Electrical and Computer Engineering Cleveland State University, Cleveland, Ohio Abstract: A real time self-tuning control algorithm was developed to accommodate slow and sudden changes in the plant dynamics. SUMMARY An optimal self-tuning control algorithm is presented for vehicle suspension design. The controller, incorporating a weighting controller, Cited by:

    This rule changes the parameters in the direction of the negative gradient of e2 MIT rule adjustment mechanism Combining the MIT rule with the control law: and computing the sensitivity derivatives produces the scheme: process u multiplier uc y _ + e filter integrator model + _ ym multiplier Note: steady-state will be achieved when the input to. SELF-TUNING DYNAMIC VIBRATION ABSORBER FOR MACHINE TOOL CHATTER SUPPRESSION Gorka Aguirre 1, Mikel Gorostiaga 1, Thomas Porchez 2 and Jokin Muñoa 1 1Microtechnology and Ultraprecision IK4-IDEKO Elgoibar, Gipuzkoa, Spain 2Mechatronic Team CEDRAT TECHNOLOGIES.

    Design and simulation of self-tuning PID-type fuzzy adaptive control for an expert HVAC system Servet Soygudera,*, Mehmet Karakoseb, Hasan Allia a Firat University, Department of Mechanical Engineering, Elazig˘, Turkey bFirat University, Department of Computer Engineering, Elazig˘, Turkey article info Keywords: Self-tuning PID-type fuzzy adaptiveCited by: The self-tuning of the MR fluid-filled ATVA can be achieved by integrating an adaptive-passive controller with the ATVA so that its stiffness can be continuously adjusted in real-time. The control aims to drive the cosine of phase angle between the .


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Self-tuning regulators for multicyclic control of helicopter vibration by Wayne Johnson Download PDF EPUB FB2

For the present work. Only self-tuning regulators and related systems are examinedin this report. Shaw(), McCloud (a,b), and Johnson () review multicyclic control, including other feedback concepts, and discuss helicopter vibration in general.

MULTICYCLIC_ CONTROL ACTUATORS (ROTATING OR NONROTATING FRAME) t l OPERATING CONDITIONS. Get this from a library. Self-tuning regulators for multicyclic control of helicopter vibration. [Wayne Johnson; United States. National Aeronautics and Space Administration.

Scientific and Technical Information Branch.]. Self-tuning regulators for multicyclic control of helicopter vibration (NASA technical paper) [Johnson, Wayne] on *FREE* shipping on qualifying offers.

Self-tuning regulators for multicyclic control of helicopter vibration (NASA technical paper). This banner text can have markup. web; books; video; audio; software; images; Toggle navigation. Self-tuning regulators for multicyclic control of helicopter vibration.

Washington, D.C.: [Springfield, Va: National Aeronautics and Space Administration, Scientific and Technical Information Branch ; For sale by the National Technical Information Service]. Sponsor a Book. Vibration (Aeronautics) 51 works Search for books with subject Vibration (Aeronautics).

Search. Self-tuning regulators for multicyclic control of helicopter vibration Wayne Johnson Read. Design of a vibration isolation system for a.

Self-tuning regulators for multicyclic control of helicopter vibration eBook: National Aeronautics and Space Administration NASA: : Kindle StoreAuthor: National Aeronautics and Space Administration NASA.

Open Library is an open, editable library catalog, building towards a web page for every book ever published. Self-tuning regulators for multicyclic control of helicopter vibration Wayne Johnson Not In Library.

Helicopters and autogyros of the world Paul Marcel Lambermont. Buy Self-tuning regulators for multicyclic control of helicopter vibration (NASA technical paper) by Wayne Johnson (ISBN:) from Amazon's Book Store. Everyday low Author: Wayne Johnson. Self-tuning regulators for multicyclic control of helicopter vibration / (Washington, D.C.: National Aeronautics and Space Administration, Scientific and Technical Information Branch.

However, hysteresis is inherent in stack actuators, and this complicates their use in helicopter vibration control.

In this chapter, we look at hysteresis compensation methods which can be used along with harmonic optimal control for Author: R. Ganguli, S. Viswamurthy. Self-tuning regulators for multicyclic. control of helicopter vibration.

NASA TPMarch. [19] The first third of the book is an introduction to rotorcraft aerodynamics, blade motion, and. 31 Johnson, W., “Self-Tuning Regulators for Multicyclic Control of Helicopter Vibration,” Nasa technical paperMarch 32 Millott, T.

A., Vibration Re duction in Helicopter R otors. Due to these negative outcomes, the active control of helicopter rotor blades has raised significant interest in the last 30 years. Many attempts to solve the problem of noise and vibrations associated with active control of the rotor blades have been : Sergey N.

Shevtsov, Arkady N. Soloviev, Ivan A. Parinov, Alexander V. Cherpakov, Valery A. Chebanenk. A CLASS OF REGULATORS The purpose of self-tuning regulators is to control systems with unknown but constant parameters. The regulators can also be applied to systems with slowly varying parameters.

Self-tuning regulators can be obtained by starting with a known system and a design by: Browsing subject area: Stability of helicopters (Exclude extended shelves) You can also browse an alphabetical listbrowse an alphabetical list.

JOHNSON NASA Technical Report NASA-TP Self-tuning regulators for multicyclic control of helicopter vibration. LANE, A. FERRI and B. HECK Proceedings, ASME Winter Annual Meeting, Anaheim, DE-Vol.

49, ­ New York: ASME, Vibration control using semi-active frictional damping. The airframe active-vibration-control system developed by GKN-Westland for the EH is relatively low in risk but has high-authority actuators, so airworthiness implications still.

Self-tuning control is a simple method for controlling systems with uncertainty which has a long history of successful application. Introduction There are many approaches to the adaptive control of unknown systems (see Adaptive control). Within this broad area, Self-tuning control provides a pragmatic approach to.

Experimental Verification of Drill String Vibration Suppression Using an Adaptive Self-Tuning Controller Fesmi Abdul Majeed and Hamad Karki Mechanical Engineering Department, Petroleum Institute, Abu Dhabi, P.O. BoxUAE Mansour Karkoub Mechanical Engineering Department, Texas A&M, Doha, P.O.

BoxQatar Youssef Lotfy Abdel Magid. Minimum variance control algorithm (a sum-mary) 1. Measure current output y(t). 2. Recall past y’s and u’s and form data φ(t). 3. Predict estimated output ˆy(t) from φ(t), and ˆθ (model). 4. Recalculate new parameter θˆ from estima-tor, which gives new Aˆ, Bˆ.

5. Calculate u(t) from control law. 6. Step are repeated at each File Size: 33KB.A self-tuning DVA is thus of advantage for ensuring optimal damping in a wider range of working conditions.

Such damper needs two main new functions: Online chatter monitoring and identification of optimal damper tuning frequency Automatic control of the damper resonance frequency to match the monitored by: 2.Self-Tuning Control of a Low-Friction Pneumatic Actuator Under the Influence of Gravity Robert Richardson, Andrew R.

Plummer, and Michael D. Brown Abstract— Traditionally the positioning of pneumatic actuators has been limited to movement between preset stops or switches.