Aircraft Equipment Random Vibration Test Criteria Based on Vibrations Induced by Turbulent Airflow Across Aircraft External Surfaces

Abstract

Vibrations within jet aircraft are caused by a number of phenomena. The principal sources, generally are: jet engine noise and turbulent airflow (pseudo-noise) which impinge on aircraft external surfaces; gust, landing, and takeoff loads; and on-board mechanical equipment such as engines and pumps. This paper describes the structural vibrations induced by turbulent airflow and generalizes the findings to develop pertinent, adaptable random vibration test criteria for aircraft equipment. These criteria are those recently proposed for inclusion in Method 514 of MIL-STD-810C, Environmental Test Methods.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1983
Accession Number
ADA123281

Entities

People

  • John F. Dreher

Organizations

  • Flight Dynamics Laboratory

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Aircraft Equipment
  • Aircraft Industry
  • Aircrafts
  • Airframes
  • Engine Noise
  • Fatigue Tests (Mechanics)
  • Frequency
  • Jet Aircraft
  • Jet Engine Noise
  • Jet Engines
  • Mach Number
  • Random Vibration
  • Resonant Frequency
  • Test Equipment
  • Test Fixtures
  • Test Methods
  • Transport Aircraft

Fields of Study

  • Engineering
  • Physics

Readers

  • Aerospace Test and Evaluation
  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Combustion and Flow Dynamics.