Measuring and testing – Vehicle chassis – Steering
Patent
1980-02-14
1982-05-11
Myracle, Jerry W.
Measuring and testing
Vehicle chassis
Steering
G01L 513
Patent
active
043287034
ABSTRACT:
A test stand for measuring the thrust produced by a jet engine includes a base and a floating frame having the engine connected thereto, with the floating frame being disposed in spaced, parallel relationship to said base. The base and floating frame are interconnected by a plurality of elongated support flexures, each of which is provided with a first and second elongated generally planar webs, disposed in axial alignment and with the plane of the first web being orthogonal to the plane of the second web. The flexures are disposed such that the plane of the fist web is perpendicular to the logitudinal axis of the jet engine. In operation, the thrust of the jet engine causes movement of the floating frame relative to the base thereby resulting in a corresponding bending of the flexure, with the bending being localized in the first web to facilitate its measurement. A control circuit is provided which includes a plurality of transducers that are bonded to the flat surface portion of the first web. The transducers are interconnected in a Wheatstone's bridge arrangement to produce an accurate measurement of thrust.
REFERENCES:
patent: 3561280 (1971-02-01), MacPhee et al.
Thrust Stands. Brochure of Hunter-Bristol Corp. 1957, Bristol, Pa., pp. 1, 5.
The Design of . . . Calibrators. Brochure of Wiancko Engineering Co., Pasadena, Ca., Feb. 1962, p. 15.
Hudson George S.
McClure John W.
Avco Corporation
Gelling Ralph D.
Myracle Jerry W.
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