Vibration Attenuation in Rotating Machines Using Smart Spring Mechanism | Zendy

Aldemir Ap Cavalini | Zendy; Thiago Vianna Galavotti | Zendy; Tobias Souza Morais | Zendy; Edson Hideki Koroishi | Zendy; Valder Steffen | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

Vibration Attenuation in Rotating Machines Using Smart Spring Mechanism

Author(s) -

Aldemir Ap Cavalini,

Thiago Vianna Galavotti,

Tobias Souza Morais,

Edson Hideki Koroishi,

Valder Steffen

Publication year - 2010

Publication title -

mathematical problems in engineering

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.262

H-Index - 62

eISSN - 1026-7077

pISSN - 1024-123X

DOI - 10.1155/2011/340235

Subject(s) - vibration , finite element method , stack (abstract data type) , mechanism (biology) , attenuation , spring (device) , stiffness , vibration control , transient (computer programming) , engineering , control theory (sociology) , actuator , energy (signal processing) , genetic algorithm , energy consumption , mechanical engineering , rotation (mathematics) , process (computing) , control engineering , structural engineering , computer science , acoustics , control (management) , electrical engineering , physics , optics , artificial intelligence , machine learning , programming language , operating system , quantum mechanics

This paper proposes a semiactive vibration control technique dedicated to a rotating machine passing by its critical speed during the transient rotation, by using a Smart Spring Mechanism (SSM). SSM is a patented concept that, using an indirect piezoelectric (PZT) stack actuation, changes the stiffness characteristics of one or more rotating machine bearings to suppress high vibration amplitudes. A Genetic Algorithm (GA) optimization technique is used to determine the best design of the SSM parameters with respect to performance indexes associated with the control efficiency. Additionally, the concept of ecologically correct systems is incorporated to this work including the PZT stack energy consumption in the indexes considered for the optimization process. Simulation carried out on Finite Element Method (FEM) model suggested the feasibility of the SSM for vibration attenuation of rotors for different operating conditions and demonstrated the possibility of incorporating SSM devices to develop high-performance ecologic control systems

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research