Optimization of the Damping Properties of Electro-Viscoelastic Objects with External Electric Circuits

Матвеенко, В. П.; Yurlov, M. A.; Yurlova, N. A.

doi:10.1007/978-3-319-17118-0_4

Cited by 5 publications

(5 citation statements)

References 27 publications

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“…In daily life, the demand for more functional products due to the problems encountered in the fields of medicine and industry caused scientists to improve the properties of materials and to produce new materials with superior properties. Smart materials which have made great progress in recent years have the ability to change their properties according to environmental conditions, and they are used to transform one type of energy into another one [1]. The use of smart materials in biomedical, aviation and automotive industries is gradually increasing.…”

Section: Introductionmentioning

confidence: 99%

Investigation Of The Effects Of Machining Parameters On Tool Life And Surface Roughness During The Face Milling Of The NiTi Shape Memory Alloy With Uncoated Tools

Altaş¹,

Gökkaya²,

Özkan³

2020

Preprint

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Shape memory alloys (SMAs) are increasingly used in the fields of aviation, automotive and biomedicine due to their unique properties. Nickel-Titanium (NiTi) alloy materials, which are one of the shape memory alloys, are among the most frequently used alloy materials. The shape memory and super elastic effects of NiTi alloys, high ductility and deformation hardening make it difficult to shape burr. An additional problem is the formation of a white layer during machining. In this study, surface milling operations were performed in dry cutting conditions with uncoated cutting tools with different nose radii. The processing parameters were determined based on the experience gained as a result of the preliminary tests. Tungsten carbide cutting tools with different nose radii (0.4mm and 0.8mm) were used for the milling operations. Milling was carried out at three different cutting speeds (20, 35, 50 m/min), feed rates (0.03, 0.07, 0.14 mm/tooth), and a constant axial cutting depth (0.7 mm). As a result of our experimental studies, the best tool life was found to be in 0.8 mm nose radius cutting tools at 20 m/min cutting speed and 0.03 mm/tooth feed rate (0.264 mm). The minimum average surface roughness was found after milling with 0.8 mm nose radius cutting tool at 20 m/min cutting speed and 0.03 mm/tooth feed rate (0.346 μm). It has been determined that increasing the cutting tool nose radius reduces both the flank wear over the cutting tool and the average surface roughness.

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Section: Introductionmentioning

confidence: 99%

Investigation Of The Effects Of Machining Parameters On Tool Life And Surface Roughness During The Face Milling Of The NiTi Shape Memory Alloy With Uncoated Tools

Altaş¹,

Gökkaya²,

Özkan³

2020

Preprint

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“…The optimization of the damping properties of electroviscoelastic objects with external electric circuits is investigated in Matveenko et al (2015). More specifically, the dynamic characteristics of smart structures with piezoelectric materials are optimized in terms of the resonance frequencies and the damping properties which are provided by external electric shunt circuits which, in turn, incorporate resistance, capacitance and inductance to the system.…”

Section: Optimization Of Shunt Characteristicsmentioning

confidence: 99%

Shunt Piezoelectric Systems for Noise and Vibration Control: A Review

Marakakis

Tairidis

Koutsianitis

et al. 2019

Front. Built Environ.

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In this paper, the current state of the art on shunt piezoelectric systems for noise and vibration control is reviewed. The core idea behind the operation of electronic shunt piezoelectric circuits is based on their capability of transforming the dynamic strain energy of the host structure, i.e., a smart beam or plate, into electric energy, using the properties of the direct piezoelectric phenomenon and sending this energy into the electronic circuit where it can be partially consumed and transformed into heat. For this purpose, transducers which are made by piezoelectric materials are used, since such materials present excellent electromechanical coupling properties, along with very good frequency response. Shunt piezoelectric systems consist of an electric impedance, which in turn consists of a resistance, an inductance or a capacitance in every possible combination. Several types of such systems have been proposed in the literature for noise or vibration control for both single-mode and multi-mode systems. The different types of shunt circuits provide results comparable to other types of control methods, as for example with tuned mass-dampers, with certain viscoelastic materials, etc. As for the hosting structure, several studies on beams and plates connected with shunt circuits have been proposed in recent literature. The optimization of such systems can be performed either on the design and placement of the piezoelectric transducers or on the improvement and fine-tuning of the characteristics of the system, i.e., the values of the resistance, the inductance, the capacitance and so on and so forth. There are several applications of shunt systems including among others, structural noise control, vibration control, application on hard drives, on smart panels etc. Last but not least, shunt circuits can be also used for energy harvesting in order to collect the small amount of energy which is necessary in order to make the system self-sustained.

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“…A part of V 2 volume surface is covered with electrodes. The variational equation of motion of the body consisting of elastic and piezoelectric elements was derived on the basis of the linear theory of elasticity relations and quasistatic Maxwells equations [24][25][26][27][28]:…”

Section: Mathematical Statement Of the Problemmentioning

confidence: 99%

An approach to determination of shunt circuits parameters for damping vibrations

Матвеенко

Iurlova

Oshmarin

et al. 2018

International Journal of Smart and Nano Materials

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This paper considers the problem of natural vibrations of a deformable structure containing elements made of piezomaterials. The piezoelectric elements are connected through electrodes to an external electric circuit, which consists of resistive, inductive and capacitive elements. Based on the solution of this problem, the parameters of external electric circuits are searched for to allow optimal passive control of the structural vibrations. The solution to the problem is complex natural vibration frequencies, the real part of which corresponds to the circular eigenfrequency of vibrations and the imaginary part corresponds to its damping rate (damping ratio). The analysis of behaviour of the imaginary parts of complex eigenfrequencies in the space of external circuit parameters allows one to damp given modes of structure vibrations. The effectiveness of the proposed approach is demonstrated using a cantilever-clamped plate and a shell structure in the form of a semi-cylinder connected to series resonant RL circuits.

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Optimization of the Damping Properties of Electro-Viscoelastic Objects with External Electric Circuits

Cited by 5 publications

References 27 publications

Investigation Of The Effects Of Machining Parameters On Tool Life And Surface Roughness During The Face Milling Of The NiTi Shape Memory Alloy With Uncoated Tools

Investigation Of The Effects Of Machining Parameters On Tool Life And Surface Roughness During The Face Milling Of The NiTi Shape Memory Alloy With Uncoated Tools

Shunt Piezoelectric Systems for Noise and Vibration Control: A Review

An approach to determination of shunt circuits parameters for damping vibrations

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