Measuring and testing – Dynamometers – Responsive to force
Patent
1997-06-04
1999-05-18
Noori, Max H.
Measuring and testing
Dynamometers
Responsive to force
73862043, G01L1/04
Patent
active
059052120
ABSTRACT:
Force transducers are integrated in an elastomeric flex bearing to provide signals for determining the tension and torque upon a tension member coupled to the bearing and for computation of the azimuth and elevation of the tension member. Preferably the force transducers are mounted to or embedded in an outer metal load ring of the flex bearing and are bonded with the outer metal load ring to the elastomer of the flex bearing. The force transducer, for example, include a diaphragm bonded to the elastomer, and the diaphragm has a diameter in excess of the spacing between the outer metal load ring and the nearest laminated metal reinforcement of the bearing. In one embodiment, metal foil strain gages are bonded to the surface of the diaphragm opposite from the elastomer. In another embodiment, the diaphragm transmits pressure to hydraulic fluid between the diaphragm and the outer metal support ring. A proximity sensor sensing the position of the diaphragm with respect to the outer metal support ring can be used to detect any loss of hydraulic fluid and to calibrate the hydraulic transducer under an unknown load by injecting hydraulic fluid under pressure until the diaphragm assumes a position for which the fluid pressure is indicative of the pressure applied by the elastomer to the diaphragm.
REFERENCES:
patent: 3695096 (1972-10-01), Kutsay
patent: 3746372 (1973-07-01), Hynes et al.
patent: 4043545 (1977-08-01), Dial et al.
patent: 4095852 (1978-06-01), Schutz
patent: 4117719 (1978-10-01), Schutz
patent: 4168160 (1979-09-01), Stoferle et al.
patent: 4474060 (1984-10-01), Crossman
patent: 4573362 (1986-03-01), Amlani
patent: 4644805 (1987-02-01), Haffner
patent: 4753553 (1988-06-01), Carlsen et al.
patent: 4763531 (1988-08-01), Dietrich et al.
patent: 4780026 (1988-10-01), Gunderson
patent: 4836029 (1989-06-01), Skala et al.
patent: 4896543 (1990-01-01), Gullman
patent: 4900165 (1990-02-01), Alvelid et al.
patent: 5060525 (1991-10-01), Hafner
patent: 5133578 (1992-07-01), Whightsil, Sr. et al.
patent: 5167385 (1992-12-01), Hafner
patent: 5186043 (1993-02-01), Yamaoka et al.
patent: 5269629 (1993-12-01), Langner
patent: 5291795 (1994-03-01), Hafner
patent: 5314024 (1994-05-01), Rodgers et al.
patent: 5439060 (1995-08-01), Huete et al.
Herbst, P. T., Natural Rubber as a Bearing Material for Rotary Wing Aircraft Applications, (1972) pp. 3-8.
CRC Handbook of Mathematical Tables, 1980, CRC Press Inc., Boca Raton, Florida, pp. 43-44.
Omega Pressure and Strain Measurement Handbook and Encyclopedia, (1984), Omega Engineering, Inc., Stamford, CT., pp. B-3, B-7, B-8, B-18, E-3, E-27, E-28, E-29, E-39 to E-46.
FlexJoints for TPL Mooring Systems, Drilling and Production Risers, Oil States Industries, (1984) A Division of Continental Emsco Co., Arlington, TX.
CS5516, CS5520, 16-Bit/20-Bit Bridge Transducer A/D Converters, (1994) Crystal Semiconductor Corporation, Austin, TX.
Laminated Teeter Bearing Contributes to the Advance of Wind Turbine Technology.
The Elastomeric Bearing: What It Can Do For You, an ASME Publication, The American Society of Mechanical Engineers, United Engineering Center, New York, N.Y. 10017, pp. 1-8.
The Sikorsky Spirit: A New Breed of Helicopter, pp. 7-9.
Hogan Michael E.
Moses Charles J.
Continental EMSCO Company
Noori Max H.
LandOfFree
Load and deflection measurement system for elastomeric bearings does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Load and deflection measurement system for elastomeric bearings, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Load and deflection measurement system for elastomeric bearings will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1760813