نتایج جستجو برای: random vibration
تعداد نتایج: 332936 فیلتر نتایج به سال:
This research describes random process modeling of the accelerated aging process based upon the mechanical degradation in induction motors. In order to show this aging effect, vibration measurements are considered at the end of each aging cycle, which gradually cause to bearing damage in the motor. In this manner, the accelerated aging study comprises seven aging stage sequentially and collecte...
Background: The Kalman filter is an effective tool for estimating a stochastic process in noise. Given a state-space model of a stochastic process, the Kalman filter recursively estimates state variables from noisy measurements by minimizing the sum of squared estimation errors. It is an optimal estimator for a Gauss random process and provides estimates of error variances. Its application for ...
SOUND AND VIBRATION/NOVEMBER 2002 A brief overview is given of transport airplane ground vibration testing (GVT) at Boeing Commercial Airplane Group. A GVT is a modal test conducted for the purpose of validating and improving a structural dynamic model of the airplane. A “small signal” model is quickly and conveniently identified from multi-input burst random excitation. Sine excitation is used...
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