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AIRCRAFT TIRE/WHEEL INTERFACE-LOAD MEASUREMENT

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: N/A
Agency Tracking Number: 12736
Amount: $264,287.00
Phase: Phase II
Program: SBIR
Solicitation Topic Code: N/A
Solicitation Number: N/A
Timeline
Solicitation Year: N/A
Award Year: 1991
Award Start Date (Proposal Award Date): N/A
Award End Date (Contract End Date): N/A
Small Business Information
62a Littleworth Rd
Dover, NH 03820
United States
DUNS: N/A
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 James A Sherwood
 (603) 862-2624
Business Contact
Phone: () -
Research Institution
N/A
Abstract

IN LATE 1986, WRDC/FIEVA INITIATED AN IN-HOUSE PROGRAM TO INVESTIGATE EXPERIMENTAL AND ANALYTICAL METHODS FOR AIRCRAFT-WHEEL-LIFE ESTIMATION AND VERIFICATION. AS PARTIAL FULFILLMENT OF THIS PROGRAM, STRUCTURAL MODELS OF TIRES AND A NEW STOCHASTIC CRACK GROWTH MODEL FOR THE WHEEL FRACTURE BEHAVIOR ARE BEING DEVELOPED. TO COMPLEMENT THESE RESEARCH EFFORTS A TIRE-WHEEL INTERFACE MODEL THAT YIELDS A DESCRIPTION OF THE WHEEL FLANGE AND BEADSEAT LOADS IS REQUIRED. PRESENTLY, THE BOUNDARY CONDITIONS AT THE TIRE-WHEEL INTERFACE ARE UNKNOWN. THE OBJECTIVE OF THIS RESEARCH PROPOSAL IS TO INVESTIGATE THE FEASIBILITY OF DEVELOPING A METHODOLOGY FOR ACCURATELY MEASURING THE LOAD DISTRIBUTION AT THE TIRE/WHEEL INTERFACE. A VARIETY OF COMMERCIALLY AVAILABLE PRODUCTS INCLUDING CONDUCTIVE RUBBER, FERRITE FLUID, PIEZOELECTRIC CRYSTALS AND CAPACITIVE DEVICES WILL BE STUDIED FOR USE IN A TOTALLY NEW INSTRUMENTATION DEVICE. THE LOADS MEASURED WITH THE PROPOSED DEVICE WILL BE USED IN EXISTING FINITE-ELEMENT MODELS OF AIRCRAFT WHEELS TO EVALUATE THE WHEEL'S COMPLETE STRUCTURAL RESPONSE TO THESE LOADS.

* Information listed above is at the time of submission. *

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