Integrated annular supporting structure and damper shield for su

Details Integrated annular supporting structure and damper shield for su Integrated annular supporting structure and damper shield for su

1975-07-17

1977-08-02

Smith, Al Lawrence

Electrical generator or motor structure

Dynamoelectric

Rotary

310 42, 228107, H02K 919

Patent

active

040398706

ABSTRACT:
A composite tubular structure for shielding and supporting the superconducting field assembly of the rotor of a dynamoelectric machine. A plurality of elongated hollow metal cylinders are disposed one within another and are metallurgically bonded together by the high energy impact produced by the detonation of an explosive charge. The metallurgical weld produced thereby is formed substantially uniformly across the metal-to-metal interface of next adjacent cylinders. In a preferred embodiment of this invention, the composite tubular structure comprises an outer cylinder formed of a non-ferromagnetic metal having high mechanical strength and ductility, and an inner cylinder formed of a non-ferromagnetic metal having an electrical conductivity which is high as compared with the electrical conductivity of the outer cylinder. When bonded by explosive fabrication, the two cylinders perform mechanically as a single structure, the inner cylindrical portion providing electromagnetic shielding and the outer cylindrical portion providing structural support.

REFERENCES:
patent: 3314139 (1967-04-01), Whittaker et al.
patent: 3742265 (1973-06-01), Smith, Jr.
patent: 3904901 (1975-09-01), Renard et al.
patent: 3942053 (1976-03-01), Abolins et al.

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