Global ETD Search
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Showing 1 to 3 of 3 for “"equivalent linearisation"”.
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An Investigation into Nonlinear Random Vibrations based on Wiener Series Theory
… white-noise excitation using the Wiener series. Equivalent Linearisation (EL) is a well-known and simple method that approximates a nonlinear system by an equivalent linear system. However, it has deficiencies which this thesis attempts to improve. Initially, the performance of EL for different …
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Statistical Vibro-Acoustic Modelling of Nonlinear Systems with Applications in Vehicles
… system, were investigated from an equivalent damper model of the structural vibrating subsystem, under the assumption of weak acoustic coupling and the infinite plate theory. Numerical data in the time domain were generated from the simplified nonlinear system excited by random …
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Frequency-domain modelling of floating wind turbines
… are linearised using both harmonic and tangent linearisation approaches; the harmonic linearisation gives improved results when stall occurs. The wake dynamics can also be included. The control system behaviour is linearised using the same method, which works well when the wind speed is far from …