Rotor-bearing vibration control system based on fuzzy controller and smart actuators

Borges, Jader Morais; Silva, Antônio Augusto Moura da; Araújo, Carlos de; Fernandes, Eisenhawer de Moura; Pimentel, Roberto Leal; Santiago, Alberdan

doi:10.1260/1750-9548.7.3.197

Cited by 11 publications

(10 citation statements)

References 4 publications

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“…Electrical motor (WEG W22 Plus) coupled promotes excitation, which rotating frequency can be adjusted for any frequency between 3 and 60 Hz. It is necessary that resonance frequency of machine was near resonance of the same rotating machine used by Borges et al (2013) to allow comparison of results. For this, the equivalent stiffness of smart bearing in martensitic phase was designed to keep resonance frequency near 23 Hz.…”

Section: Methodology and Experimental Developmentmentioning

confidence: 99%

“…The classical experiments with SMA dampers and tuned devices correspond to linear displacements of beams and structures similar to buildings (Gur et al, 2017; Moraes et al, 2018), where the classical application is to structures potentially subject to earthquakes. Expanding this application field to industrial environment, the strategy of vibration control can be applied to rotating machinery subjected to vibration, mainly during resonance frequency crossing (Borges et al, 2013; Enemark and Santos, 2016; He et al, 2007; Senko et al, 2013).…”

Section: Sma Concept Applied To Vibration Controlmentioning

confidence: 99%

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Design and experimental analysis of a smart bearing using shape memory alloy springs

Oliveira

Silva

Araújo

et al. 2020

Journal of Intelligent Material Systems and Structures

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Among many rotating machinery vibration sources, there is one due to resonance, when the machine operation frequency crosses the natural frequency region. This study proposes a smart bearing that employs shape memory alloy NiTi helical springs for vibration-level reduction. This smart bearing is capable of dynamically changing its stiffness during machine acceleration or deceleration, keeping its natural frequency far from resonance. Activated by Joule effect and cooled by forced air convection, the prototype installed in horizontal rotating machinery reaches reduction of vibration amplitude of about 63% (root mean square) and 73% (Peak) at critical speed, with response time between 12–15 s. Compared with the results of the reference articles, satisfactory amplitude reduction and better response time were observed.

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Section: Methodology and Experimental Developmentmentioning

confidence: 99%

Section: Sma Concept Applied To Vibration Controlmentioning

confidence: 99%

Design and experimental analysis of a smart bearing using shape memory alloy springs

Oliveira

Silva

Araújo

et al. 2020

Journal of Intelligent Material Systems and Structures

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“…A suspensão do mancal foi encapsulada por uma câmara de aquecimento que visa controlar a temperatura dos fios de LMF. Borges et al (2016) apresentaram um estudo sobre o controle de vibrações em um rotor com molas de LMF presentes nos mancais. Neste estudo, foi utilizado um controlador do tipo Fuzzy para modificar a temperatura das molas de LMF através da alteração da corrente elétrica aplicada.…”

Section: Introductionunclassified

Controle de Vibrações em Máquinas Rotativas utilizando Fios de Liga com Memória de Forma

Abreu

Preto

Fernandes

2019

Anais Do 14º Simpósio Brasileiro De Automação Inteligente

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Rotating systems are subject to external and internal excitations that cause undesirable vibrations, taking to degradation of the structural integrity of the system and the users health. In the industrial area, for example, the vibration attenuation can allow rotating systems to operate more efficiently and safely, providing less frequent periodic maintenance and avoiding expensive cost. In this context, the control of vibrations has been the object of concern of research centers and the specialized literature is full in proposals of solutions for this subject. This work presents a theoretical proposal of the mathematical modeling of a rotating machine containing shape memory alloy wires, whose purpose is to promote the damping of lateral vibrations caused by perturbation forces, mainly unbalance forces. This work intends to construct a theoretical knowledge, in a research area of restricted and relevant domain.

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“…Zhu et al (2009) developed and applied a model based on multi-variate statistical analysis vibration control of rotor systems with SMA. More recently, Borges et al (2013) used helical springs made of SMA to control the vibration of a flexible rotor. They employed the general concept of dynamic vibration absorbers to model the system, so that the mass of the bearing where the SMA springs are located is considered as the secondary mass.…”

Section: Introductionmentioning

confidence: 99%

Vibration control of a flexible rotor suspended by shape memory alloy wires

Alves

Steffen

Santos

et al. 2018

Journal of Intelligent Material Systems and Structures

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Rotor-bearing vibration control system based on fuzzy controller and smart actuators

Cited by 11 publications

References 4 publications

Design and experimental analysis of a smart bearing using shape memory alloy springs

Design and experimental analysis of a smart bearing using shape memory alloy springs

Controle de Vibrações em Máquinas Rotativas utilizando Fios de Liga com Memória de Forma

Vibration control of a flexible rotor suspended by shape memory alloy wires

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