Dissipation of energy during harmonic loading of a viscous-elastic piezoceramic material

Bolkisev, A. M.

doi:10.1007/bf00886600

Cited by 2 publications

(1 citation statement)

References 5 publications

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“…To be more specific, the internal dielectric loss is primarily caused by polarization relaxation and leakage loss. Besides, the mechanical loss refers to the segmental energy loss caused by overcoming the internal friction in the vibration of the piezoelectric electrodes [ 11 ]. In this dynamical model, the energy loss of these parts is equivalent to two dampers which can also provide the foundation for establishing the FE model.…”

Section: Gyro Description and Theoretical Considerationmentioning

confidence: 99%

Analysis of the Damping Characteristics of Cylindrical Resonators Influenced by Piezoelectric Electrodes

Sun

et al. 2017

Sensors

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The cylindrical resonator gyroscope (CRG) is a typical Coriolis vibratory gyroscope whose performance is mostly influenced by the damping characteristic of the cylindrical resonator. However, the tremendous damping influences caused by pasting piezoelectric electrodes on the gyroscope, which degrades the performance to a large extent, have rarely been studied. In this paper, the dynamical model is established to analyze various forms of energy consumption. In addition, a FE COMSOL model is also created to discuss the damping influences of several significant parameters of the adhesive layer and piezoelectric electrodes, respectively, and then explicit influence laws are obtained. Simulation results demonstrate that the adhesive layer has some impact on the damping characteristic, but it not significant. The Q factor decreases about 30.31% in total as a result of pasting piezoelectric electrodes. What is more, it is discovered that piezoelectric electrodes with short length, locations away from the outside edges, proper width and well-chosen thickness are able to reduce the damping influences to a large extent. Afterwards, experiments of testing the Q factor are set up to validate the simulation values.

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Section: Gyro Description and Theoretical Considerationmentioning

confidence: 99%

Analysis of the Damping Characteristics of Cylindrical Resonators Influenced by Piezoelectric Electrodes

Sun

et al. 2017

Sensors

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Extended irreversible thermodynamics modeling for self-heating and dissipation in piezoelectric ceramics

Hanagud

2004

IEEE Trans. Ultrason., Ferroelect., Freq. Contr.

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Dissipation of energy during harmonic loading of a viscous-elastic piezoceramic material

Cited by 2 publications

References 5 publications

Analysis of the Damping Characteristics of Cylindrical Resonators Influenced by Piezoelectric Electrodes

Analysis of the Damping Characteristics of Cylindrical Resonators Influenced by Piezoelectric Electrodes

Extended irreversible thermodynamics modeling for self-heating and dissipation in piezoelectric ceramics

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