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Construction of a new Lyapunov function for a dissipative gyroscopic system using the residual energy function

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Abstract

In a dissipative gyroscopic system with four degrees of freedom and tensorial variables in contravariant (right upper index) and covariant (right lower index) forms, a Lagrangian-dissipative model, i.e., {L, D}-model, is obtained using second-order linear differential equations. The generalized elements are determined using the {L, D}-model of the system. When the prerequisite of a Legendre transform is fulfilled, the Hamiltonian is found. The Lyapunov function is obtained as a residual energy function (REF). The REF consists of the sum of Hamiltonian and losses or dissipative energies (which are negative), and can be used for stability by Lyapunov's second method. Stability conditions are mathematically proven.

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Cem CIVELEK designed the research and drafted the manuscript. Özge CIHANBEGENDi helped organize the manuscript. Cem CIVELEK revised and finalized the paper.

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Correspondence to Cem Civelek.

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Cem CİVELEK and Özge CİHANBEĞENDİ declare that they have no conflict of interest.

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Civelek, C., Cihanbeğendi, Ö. Construction of a new Lyapunov function for a dissipative gyroscopic system using the residual energy function. Front Inform Technol Electron Eng 21, 629–634 (2020). https://doi.org/10.1631/FITEE.1900014

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  • DOI: https://doi.org/10.1631/FITEE.1900014

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