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The Analysis of Nonstatlonary Vibration Data
Conservatism Implications of Shock Test Tailoring
Scaling the Electromagnetically Driven Explosive Shock
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1/3 Octave Band acceleration accelerometer amplitude applied approximately average axial axis beam Beskos calculated companion matrix complex modes components computed configuration conservatism constraints damping deflection degrees of freedom displacement domain effect eigenvalues eigenvectors elastic Engineering equations of motion errors estimate excitation exponential matrix solution filter finite element model forcing function frequency range frequency response functions identified input joint laminate Laplace transform layer lift-off linear load locations loss factor mass matrix exponential max q measured mechanical method Modal Analysis modal test mode shapes natural frequencies nonstationary normal modes obtained optimal overtest parameters peak photopole plate predicted pressure procedure random ratio ride meter shock test shown in Figure signatures simulation Space Shuttle spectra spectrum spring SSME static stiffener stiffness matrix strain gage stress supporting structure system identification technique test panel torsional turbopump VC mount vector velocity vibration data viscoelastic weight zero