Accession Number : ADA290331

Title :   Wormgear Geometry Adopted for Implementing Hydrostatic Lubrication and Formulation of the Lubrication Problem.

Descriptive Note : Final contractor rept.,

Corporate Author : STATE UNIV OF NEW YORK AT BINGHAMTON

Personal Author(s) : Sun, D. C. ; Yuan, Qin

PDF Url : ADA290331

Report Date : JAN 1995

Pagination or Media Count : 49

Abstract : The geometrical parameters for a wormgear intended to be used as the transmission in advanced helicopters are finalized. The resulting contact pattern of the meshing tooth surfaces is suitable for the implementation of hydrostatic lubrication. Fluid film lubrication of the contact is formulated considering external pressurization as well as hydrodynamic wedge and squeeze actions. The lubrication analysis is aimed at obtaining the oil supply pressure needed to separate the worm and gear surfaces by a prescribed minimum film thickness. The procedure of solving the mathematical problem is outlined. (AN)

Descriptors :   *LUBRICATION, *TRANSMISSION GEARS, *WORM GEARS, KINEMATICS, VELOCITY, MATHEMATICAL MODELS, PARAMETERS, PROBLEM SOLVING, HELICOPTERS, DYNAMIC LOADS, PRESSURIZATION, INVISCID FLOW, VISCOUS FLOW, PRESSURE DISTRIBUTION, INCOMPRESSIBLE FLOW, ANTIFRICTION BEARINGS, LUBRICATING OILS, GEAR TEETH, HYDROSTATIC PRESSURE.

Subject Categories : Machinery and Tools
      Mechanics
      Lubricants and Hydraulic Fluids
      Lubricants and Hydraulic Fluids

Distribution Statement : APPROVED FOR PUBLIC RELEASE