Static and Dynamic Analysis of Cast and Cast Carcass Tires.
Abstract
The AFFDL/FEM initiated a program with Zedron, Inc., to establish the potential of cast tires for application to Air Force aircraft. This program involved the analysis of seventy-five (75) cast 6.00-6 Type III aircraft tires which were rotationally cast/molded from a thermoplastic polyester elastomer material (Hytrel). These tires have a continuous toroidal construction and do not have textile reinforcement or bead bundles. The first of a two phase program involved static and dynamic analysis of off-the-shelf light industrial vehicle cast tires which had a rated maximum loading of 415 lbs and rated maximum speed of 10 mph. The second phase of this In-house test program resulted in a 6.00-6 size cast tire which satisfactorily passed 89 laboratory dynamometer qualification taxi takeoff cycles. Each of these test cycles consisted of a one mile taxi under a 1150 lb load at 30 mph followed by a simulated takeoff starting at 0 mph with lift off at 90 mph. The dramatic improvement of cast tire capability demonstrated by these tests established feasibility of cast and cast carcass tires, and also provided the basis for a contract, 'Development ofCast Carcass Tires for Military Aircraft', AFFDL Work Unit 13690147. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1978
- Accession Number
- ADA054941
Entities
People
- James R. Hampton
Organizations
- Flight Dynamics Laboratory