Hydrostatic-Bearing Modification for Model 120RD02 Constant-Speed Drive. Phase I.

Abstract

This report presents the results of an engineering program conducted on the Model 120RD02 Constant Speed Drive used on the B-52H aircraft. The main objective was to provide the engineering data required to determine the technical feasibility of a hydrostatic-bearing system as a replacement for the roller bearing in the CSD. Analytical calculations were performed to establish the hydrostatic bearing design, and laboratory testing was conducted to obtain a quantified empirical comparison of the hydrostatic-bearing and roller-bearing configurations. In this report the details of the calculations and tests are presented, the problem areas are examined, and corrective actions are recommended. The CSD is a hydraulically operated differential transmission that transfers and converts variable-engine-speed rotation to constant-speed rotation for the aircraft alternator. Since the alternator output frequency varies directly with the speed of rotation, the alternator must be driven at a constant speed so that a constant output frequency will be maintained.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1969
Accession Number
ADA054699

Entities

People

  • G. K. Gantschnigg
  • R. F. Wameling

Organizations

  • ARINC

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Aircrafts
  • Bearings
  • Boundaries
  • Computer Programs
  • Engineering
  • Frequency
  • Friction
  • Geometry
  • High Pressure
  • Lubrication
  • Measurement
  • Molecular Dynamics
  • Pressure Distribution
  • Pressure Gradients
  • Relative Motion
  • Roller Bearings
  • Test Fixtures

Fields of Study

  • Engineering

Readers

  • Control Systems Engineering.
  • Mechanical Engineering/Mechanics of Materials.
  • Tribology (the study of the boundary interaction between sliding surfaces, lubrication, wear and friction).