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Dynamic simulation of an innovative wave energy converter based on gyroscopic effects

Turan Nasibli

Dynamic simulation of an innovative wave energy converter based on gyroscopic effects.

Rel. Giuseppe Giorgi, Fabio Carapellese. Politecnico di Torino, Corso di laurea magistrale in Mechatronic Engineering (Ingegneria Meccatronica), 2023

Abstract:

This work aims to study the dynamics of an innovative wave energy converter based on gyroscopic effects that can respond to floater motion in two directions, thus enabling the rotation of the gimbal to be utilized for electrical power generation. The device is modeled first in the Simscape Multibody environment, and then an analytical model is developed via the Lagrangian approach, which is later validated against the numerical one. Using the model, the gyroscope dynamics subjected to a harmonic floater excitation are studied under different input amplitudes and frequencies through a frequency sweep approach. Such an analysis reveals different types of complex behavior exhibited by the nonlinear system, like chaotic responses and coexisting solutions, which can affect performance. Finally, the impact of varying the damping coefficient imposed by the electric generator on different variations of the device leveraging elastic effects has been considered, and the possible mismatches between the Simscape and analytical models have been outlined. The addition of the elastic effects has been shown to improve the power absorption capabilities of the system and to allow a more convenient tuning of the system parameters to adapt to changing sea conditions.

Relators: Giuseppe Giorgi, Fabio Carapellese
Academic year: 2023/24
Publication type: Electronic
Number of Pages: 64
Additional Information: Tesi secretata. Fulltext non presente
Subjects:
Corso di laurea: Corso di laurea magistrale in Mechatronic Engineering (Ingegneria Meccatronica)
Classe di laurea: New organization > Master science > LM-25 - AUTOMATION ENGINEERING
Aziende collaboratrici: UNSPECIFIED
URI: http://webthesis.biblio.polito.it/id/eprint/29014
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