Modelling, simulation and optimization of the wavemaker in a towing tank

Abstract

The paper analyses the problem of experimental identification (frequency response), modelling and optimization of the towing tank wavemaker in the Scilab/Xcos environment. The experimental identification of the objects (the towing tank wavemaker placed in the hydrodynamic laboratory of the CTO S.A. Ship Design and Research Centre (CTO)) and the implementation of the models in the simulation environment, enable to perform: 1. tuning of the cascade PID controller (Astrom-Hagglund relay method), 2. checking the stability (Routh-Hurvitz criterion, Nyquist criterion) of the wavemaker with tuned controller, 3. evaluating the regulatory quality and simulating of work of the optimized (Ziegler-Nichols method) system of the wavemaker. The above works and the achieved results are further described and presented in the content of this paper.