Superconducting meissner effect bearings for cryogenic turbomachines. Interim report, 1 November 1989-31 December 1990

Technical Report · Tue Feb 26 23:00:00 EST 1991

OSTI ID:6047504

Iannello, V

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.

• Research Organization: Creare, Inc., Hanover, NH (United States)
• OSTI ID: 6047504
• Report Number(s): AD-A-268422/3/XAB; TM--1479; CNN: F49620-90-C-0007
• Country of Publication: United States
• Language: English

Related Subjects

661210 -- Cryogenics-- (1992-)
665412* -- Superconducting Devices-- (1992-)
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BEARINGS
CRYOGENICS
DATA
ELECTRICAL EQUIPMENT
ELECTROMAGNETS
EQUIPMENT
EXPERIMENTAL DATA
FEASIBILITY STUDIES
INFORMATION
LEVITATION
MACHINERY
MAGNETS
MATHEMATICS
MEISSNER-OCHSENFELD EFFECT
NUMERICAL ANALYSIS
NUMERICAL DATA
PERMANENT MAGNETS
SUPERCONDUCTING DEVICES
SUPERCONDUCTING MAGNETS
SUPERCONDUCTORS
TURBOMACHINERY