In-Flight Parameter Estimation for Multirotor Aerial Vehicles

Castro, Davi Ferreira de; Prado, Igor Afonso Acampora; Pereira, Mateus de Freitas Virgílio; Santos, Davi Antônio dos; Balthazar, José Manoel

doi:10.1051/matecconf/20168301004

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Natural Frequencies and Stability Analysis1

Introduction1

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2018

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“…Thus, using separation of variables method, solutions of Eqs. 1and (2) are sought in the following form…”

Section: Natural Frequencies and Stability Analysismentioning

confidence: 99%

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Linear flexural natural frequencies and stability analysis of spinning Rayleigh beams: application to clamped-clamped beams.

Aouadi

Lakrad

2018

MATEC Web Conf.

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In the present paper 3D bending linear free vibrations of spinning Rayleigh beams are investigated. Four linear models, that differ in the linearization process, are studied. A focus on analytical computation of natural frequencies for a broad range of boundary conditions is highlighted. Then, the conditions of occurrence of divergence and flutter instabilities are determined. Finally, a case study consisting of a clamped-clamped Rayleigh beam is studied. It is found that the free vibrations destabilization process depends on the used linearization approach.

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“…Thus, using separation of variables method, solutions of Eqs. 1and (2) are sought in the following form…”

Section: Natural Frequencies and Stability Analysismentioning

confidence: 99%

“…Spinning beams along their longitudinal axes are used in many space and mechanical structures and they are an important part of rotating machines [1] and [2]. Spinning can cause rigid body motions, axial, torsional and 3D flexural vibrations.…”

Section: Introductionmentioning

confidence: 99%