Platform motion measuring system

Details Platform motion measuring system Platform motion measuring system

1986-02-14

1988-06-14

Chapman, John

Measuring and testing

Vibration

By mechanical waves

73493, 73786, G01M 700

Patent

active

047503653

ABSTRACT:
A method and apparatus for measuring the motion of tall structures, particularly offshore platforms. The method comprises disposing a number of accelerometer packages in a tubular member attached to a vertical or near vertical member of the structure. Each package contains three accelerometers having their axes dipsosed in an orthogonal arrangement. The apparatus includes means for installing and removing a plurality of packages from tubular members or chutes that are permanently attached to the structure.

REFERENCES:
patent: 2552722 (1951-05-01), King
patent: 3010214 (1961-11-01), Postlewaite
patent: 4000658 (1977-01-01), Schmidt
patent: 4300220 (1981-11-01), Goff et al.
patent: 4343186 (1982-08-01), Schnapp
patent: 4561299 (1985-12-01), Orlando et al.
"Flexibility Monitoring of Offshore Jacket Platforms," a paper by S. Rubin and R. N. Coppolino (OTC 4535), presented at the 15th OTC in Houston, Tex., May 1983.
"A System for Acquiring Earthquake Data on Offshore Oil Platforms," a paper by R. Husid, J. H. Haws, and M. M. Patterson, Eighth World Conference on Earthquake Engineering, vol. 6, pp. 55-62, San Francisco, Calif., 1984.

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