Superconducting Meissner Effect Bearings for Cryogenic Turbomachines
Abstract
This report describes the first year efforts to develop a miniature, high speed superconducting bearing system suitable for cryogenic turbomachines such as miniature turboexpanders used in spaceborne cryocoolers for surveillance sensors. A bearing breadboard was designed, fabricated, and tested to a rotational speed of 450,000 rpm. Numerical models were developed to predict levitation focus between superconductors and permanent magnets, and validated with experimental data. The design of the turbomachine was initiated, including the conceptualization of a novel bearing system.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 27, 1991
- Accession Number
- ADA268422
Entities
People
- V. Iannello
Organizations
- Creare, Inc.