An Investigation of Classical Dynamic Scaling Techniques Applied to an Oleo-Pneumatic Landing Gear Strut

Abstract

A program was conducted to investigate the technical feasibility and practicality of using dynamic scale modeling techniques to design, fabricate, and test a scale model of an aircraft landing gear strut and tire. Dynamic scaling laws were developed and used to design a one-third model of an A-37 Nose Landing Gear (NLG) strut and tire. The A-37 NLG strut and the model gear were tested under dynamically similar conditions of weight, speed, and forcing function on a circular track, Dynamic Test Machine at the Mobility Development Laboratory, Wright-Patterson AFB OH. Comparison of time history data, recorded during each phase of testing, indicated good correlation of the dynamic response of the model landing gear, in relation to the scaling laws and the A-37 NLG dynamic response. Presented in the report is the development and analytical verification of the scaling laws, test data and comparisons, conclusions, and recommendations.

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1987
Accession Number
ADA187664

Entities

People

  • Archie B. Clark Iii

Organizations

  • Wright Laboratory

Tags

Communities of Interest

  • Air Platforms
  • Ground and Sea Platforms
  • Human Systems
  • Weapons Technologies

DTIC Thesaurus Topics

  • Aeronautical Laboratories
  • Air Force
  • Air Springs
  • Aircraft Tires
  • Aircrafts
  • Dynamic Response
  • Dynamic Tests
  • Fabrication
  • Landing Gear
  • Measurement
  • Mechanics
  • Scale Models
  • Scaling Laws
  • Test And Evaluation
  • Test Facilities
  • Test Methods
  • Vehicle Equipment

Readers

  • Aerospace Engineering
  • Computational Fluid Dynamics (CFD)
  • Theoretical Analysis.