Accession Number : AD0710609

Title :   AN ANALYSIS OF THE VIBRATION ENVIRONMENT AT NORTHROP'S NORWOOD, MASS. TEST FACILITY WITH APPLICATION TO GYRO TESTING.

Descriptive Note : Environmental research papers,

Corporate Author : AIR FORCE CAMBRIDGE RESEARCH LABS L G HANSCOM FIELD MASS

Personal Author(s) : Crowley,Francis A. ; Ossing,Henry A. ; Hogan,John G.

Report Date : JUN 1970

Pagination or Media Count : 49

Abstract : This report describes seismic measurements taken at Northrop's inertial test facility, Norwood, Massachusetts under the joint auspices of AFCRL, NASA-ERC, and Northrop Corporation. The purpose of these measurements and subsequent analyses is to characterize the motion environment of the test facility in terms relevant to facility design and guidance-component performance tests. Observations of regional and facility environmental motions are described in terms of second-order statistics that serve as a basis for optimum prediction operators. Approaches are recommended for testing gyro sensitivity to the seismic environment, and for use in gyro performance tests for determination and removal of induced error terms. (Author)

Descriptors :   (*BUILDINGS, DESIGN), (*TEST FACILITIES, SEISMIC WAVES), (*GYRO STABILIZERS, TEST FACILITIES), STABILIZED PLATFORMS, VIBRATION, MICROSEISMS, POWER SPECTRA, SPECTRUM SIGNATURES, VIBRATION ISOLATORS, EFFECTIVENESS, PROBABILITY DENSITY FUNCTIONS, DATA PROCESSING

Subject Categories : Seismology
      Structural Engineering and Building Technology
      Test Facilities, Equipment and Methods

Distribution Statement : APPROVED FOR PUBLIC RELEASE