Measuring and testing – Dynamometers – Responsive to force
Patent
1994-10-13
1995-10-10
Williams, Hezron E.
Measuring and testing
Dynamometers
Responsive to force
73862391, 73862627, G01L 513
Patent
active
054561221
ABSTRACT:
An apparatus for measuring the loads, moments and torque at a constrained d of a cable created by the action of the cable in a fluid medium in which the cable is suspended. The cable is suspended in the medium by means of a strut. The apparatus connects the cable to the strut. The apparatus includes two flexure members, one rigidly connected to the strut, the other to the cable. A universal joint couples the two flexure members so that the flexure member connected to the strut can be fitted with strain gages to measure bending while the other flexure member has strain gages to measure axial force and torque. The universal joint enables the isolation of axial and torsional strains at the flexure member connected to the cable. The torsional loads are absorbed by the joint and the axial loads are transferred to bending loads at the flexure member attached to the strut. In operation, an object for which cable load vectors are being studied may be attached to the free end of the cable. The cable and object may then be towed through a fluid such as water by movement of the strut. Cable load vectors resulting from the action of the cable and the object in the fluid are then quantified by the apparatus.
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Abdow David A.
Hassan Scott E.
Thibodeau Robert C.
Dougherty Elizabeth L.
Lall Prithvi C.
McGowan Michael J.
Oglo Michael F.
The United States of America as represented by the Secretary of
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