Study on noise control effect based on generalized Lorenz system

摘要: Abstract The suppression of ship radiation noise is studied through a generalized Lorenz system. system integrates classical Lorentz with time-delay feedback control and an external acoustic excitation. output the can be categorized into three different states: quasi-periodic state, periodic state chaotic state. characterized by trajectory, bifurcation diagram Lyapunov exponent dependence on excitation parameters like amplitude, frequency, time delay number excitations are simulated. It found that largely dependent amplitude in changes power spectrum energy, which investigated Fourier transformation. optimized specified parameters: energy reduction up to 26.67 dB realized source small high phase synchronized phase. multiple also investigated.