Measuring and testing – Dynamometers – Responsive to multiple loads or load components
Patent
1992-03-23
1994-05-31
Chilcot, Jr., Richard E.
Measuring and testing
Dynamometers
Responsive to multiple loads or load components
73862042, G01L 100
Patent
active
053158822
ABSTRACT:
A structural assembly that measures forces along and moments about three orthogonal axes with very low cross talk or likelihood of affecting the reading in one axis from loads in another axis is disclosed. The assembly comprises a support structure having a longitudinal axis that is positioned on an axis of the plurality of orthogonal axes. The support structure is substantially compliant for moments about the longitudinal axis and substantially rigid for forces along the orthogonal axes and for moments about the non-longitudinal orthogonal axes. Structural elements of the support structure are joined together with elliptical fillets to minimize stress concentration within the structure. A torque cell that measures moments about the longitudinal axis is positioned concentrically about the longitudinal axis either within a cavity located in the support structure or cylindrically around the support structure. An upper and lower flexure diaphragm connect adjacent ends of the support structure and the torque cell. The flexure diaphragms are substantially rigid to transmit moments about the longitudinal axis from the support structure to the torque cell and substantially compliant for all forces along the orthogonal axes and moments about the non-longitudinal orthogonal axes.
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Meyer Richard A.
Olson Douglas J.
Biegel R.
Chilcot Jr. Richard E.
MTS Systems Corporation
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