Minimizing Residual Vibrations in Flexible Systems.

Abstract

Residual vibrations degrade the performance of many systems. Due to the lightweight and flexible nature of space structures, controlling residual vibrations is especially difficult. Also, systems such as the Space Shuttle Remote Manipulator System have frequencies that vary significantly based upon configuration and loading. Recently, a technique of minimizing vibrations in flexible structures by command input shaping was developed. This document presents research completed in developing a simple, closed- form method of calculating input shaping sequences for two-mode systems and a system to adapt the command input shaping technique to known changes in system frequency about the workspace. The new techniques were tested on a three-link, flexible manipulator. (MM)

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Document Details

Document Type
Technical Report
Publication Date
May 21, 1992
Accession Number
ADA290074

Entities

People

  • Bert W. Rappole Jr

Organizations

  • Massachusetts Institute of Technology

Tags

Communities of Interest

  • Air Platforms
  • Autonomy

DTIC Thesaurus Topics

  • Algorithms
  • Artificial Intelligence
  • Closed Loop Systems
  • Computers
  • Control Systems
  • Data Storage Systems
  • Flexible Structures
  • Frequency
  • Frequency Bands
  • Joints (Anatomy)
  • Linear Systems
  • Lisp Programming Language
  • Mechanical Engineering
  • Operating Systems
  • Pulse Amplitude
  • Resonant Frequency
  • Vibration

Readers

  • Computer Networking
  • Computer Science/Computer Engineering/Data Science/Digital Signal Processing.
  • Structural Dynamics.

Technology Areas

  • Space
  • Space - Spacecraft Maneuvers