The Shock and Vibration Bulletin, Part 4. Vibration
NAVAL RESEARCH LAB WASHINGTON DC SHOCK AND VIBRATION INFORMATION CENTER
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Contents Survey of space vehicle vibration analysis and test techniques Methods used to realistically simulate vibration environments Simulation of complex-wave periodic vibration Rationales applying to vibration for maintenance Specification of sine vibration test levels using a force- acceleration product technique Some effects of equalization with a single mass vs an elastic system on accelerations and stresses A method for predicting structural responses from lower level acoustic tests Sweep speed effects in resonant systems The dynamic response of a steel eyebar chain suspension bridge over the Ohio River to various excitations Dual specifications in random vibration testing, an application of mechanical impedance Vibration - a diagnostic tool for shock design The resonant response of a mechanically system subjected to logarithmically swept and notched base excitation, using asymptotic expansion Effects of flight conditions upon gunfire induced vibration environment The box car dynamic environment The noise environment of a deflected-jet VTOL aircraft Vibration signature analysis of bearings and electronic packages Outer loop control for vibration testing Empirical prediction of missile flight random vibration Structural vibrations in the bell AH-1G helicopter during weapon firing Characteristics of gunfire induced vibration in helicopters Inflight vibration and noise study of three helicopters.