Vibration Isolator Test Facility.

Abstract

This report details the development of a vibration isolator test facility at the Aeronautical and Maritime Research Laboratory. The test facility was designed to investigate the acoustic transmission characteristics of resilient vibration isolating mounts for shipboard machinery. The characteristics of the isolators are described in terms of their four pole parameters. Features of the test facility include the capability to sense low level motion and the provision of a variable preload up to 60 kN. A modal analysis was conducted with the boundary conditions that are experienced in an actual test situation. This revealed details concerning the influence of structural modes on the test measurements, and led to location of the sensing accelerometers which permitted data to be obtained out to 1 kHz with confidence. This report also describes the testing of a typical ship machinery mount in the test facility by determining the four pole parameters of the vibration isolator.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1996
Accession Number
ADA322081

Entities

People

  • C. J. Norwood
  • J. D. Dickens

Organizations

  • Defence Science and Technology Group

Tags

Communities of Interest

  • Engineered Resilient Systems
  • Ground and Sea Platforms
  • Sensors
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Accelerometers
  • Acoustic Properties
  • Air Springs
  • Engineering
  • Engineers
  • Frequency Response
  • Materials
  • Measurement
  • Mechanical Engineering
  • Modal Analysis
  • Naval Architecture
  • Noise
  • Resonant Frequency
  • Standing Waves
  • Test Facilities
  • Universities
  • Vibration Isolators

Fields of Study

  • Physics

Readers

  • Acoustics.
  • Aerospace Test and Evaluation
  • Structural Dynamics.