Accession Number:

ADA181902

Title:

The Design of a Four Square Gear Tester for Noise and Vibration Measurements.

Descriptive Note:

Master's thesis,

Corporate Author:

PENNSYLVANIA STATE UNIV UNIVERSITY PARK APPLIED RESEARCH LAB

Report Date:

1986-12-01

Pagination or Media Count:

180.0

Abstract:

The following report provides the design procedures for a Four Square Gear Tester. The primary purpose of the testes is to investigate noise generation in spur gears that result from two major sources 1 Dynamic Loads and 2 Fluid Dynamics. The tester is designed to operate at 9000 revmin with an applied shaft load of 301.11 in-1lbs. The design includes mechanical components, such as 1 A dc shunt-wound electric motor with SCR which will allow testing to be performed over wide range of loading as well as speed, 2 A speed increasing mechanism consisting of pulleys and V-belts to provide the desired range of speed and torque, 3 Air bearings which are intended to minimize extraneous vibrations and provide good shaft alignment, 4 Flexible shaft couplings, with a low degree of dynamic imbalance and bending force transmission, to accommodate both angular and parallel shaft misalignment, 5 Gear mounts, also with low dynamic imbalance and with the required torque rating, to fasten the gears to the shaft and 6 Precision ground steel shafts which will provide center-to-center accuracy and therefore minimize vibration. In addition a pressure-spray lubrication system was also selected to cool and lubricate the mating gear teeth.

Subject Categories:

  • Test Facilities, Equipment and Methods
  • Acoustics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE