Extended Abstract: Dynamic Behavior of a Compliant Mechanism Driven by Stacked Piezoelectric Actuators

Date

2018-02-15

Author

Koyuncu, A.
Şahin, Melin
Özgüven, Hasan Nevzat

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

76
views

0
downloads

Mechanical amplifiers are employed to enhance output displacement of piezoelectric actuators. Dynamic behavior of such an amplified piezoelectric actuator needs to be known accurately in order to verify its suitability for the driven system. The objective of this study is to present a theoretical approach to determine a mathematical model for an amplified piezoelectric actuator (APA) which consists of a stacked piezoelectric actuator (SPA) with rhombus type mechanical amplifier (RPA). Dynamics of the mechanical amplifier is formulated based on distributed-parameter system approach, and Hamilton's principle is used to obtain a reduced order model. The SPA is then dynamically coupled with the reduced order model of a flexural amplifier by employing the constitutive relations between two substructures. The responses of the coupled system are calculated using linear vibration analysis under harmonic voltage input. Finally, the validity of the developed mathematical model is verified by comparing the calculated velocities with that of finite element solutions and experimental measurements in the frequency domain. The finite element (FE) solution is obtained using ANSYS software. Output velocity of the sample RPA is measured with the aid of a laser vibrometer. It is observed that the results obtained from the mathematical model show a very good agreement with those of the finite element analysis and test measurements.

Subject Keywords

Amplified piezoelectric actuators, Rhombus type, Strain amplification, Compliant mechanism

URI

https://hdl.handle.net/11511/38837

DOI

https://doi.org/10.1007/978-3-319-74476-6_11

Collections

Department of Aerospace Engineering, Conference / Seminar

Suggestions

OpenMETU
Core

Non-equilibrium molecular dynamics of electromigration in aluminum and its alloys Şen, Fatih Gürçağ; Aydınol, Mehmet Kadri; Department of Metallurgical and Materials Engineering (2006) With constant miniaturization of integrated circuits, the current densities experienced in interconnects in electronic circuits has been multiplied. Aluminum, which is widely used as an interconnect material, has fast diffusion kinetics under low temperatures. Unfortunately, the combination of high current density and fast diffusion at low temperatures causes the circuit to fail by electromigration (EM), which is the mass transport of atoms due to the momentum transfer between conducting electrons and diffu...
Online characterization of interharmonics and harmonics of AC electric arc furnaces by multiple synchronous reference frame analysis Uz Loğoğlu, Eda; Salor, Özgül; Ermiş, Muammer (2015-10-18) In this paper, a multiple synchronous reference frame (MSRF) analysis framework is developed to determine the positive- and negative -sequence components of all interharmonic and harmonic currents produced by alternating current electric arc furnace (AC EAF) installations, which can be considered as balanced but asymmetrical three-phase, three -wire loads on the power system. The aim of developing the MSRF analysis framework is two -fold; deep understanding of the EAF characteristics, and fast and accurate ...
Online Characterization of Interharmonics and Harmonics of AC Electric Arc Furnaces by Multiple Synchronous Reference Frame Analysis Uz-Logoglu, Eda; Salor, Ozgul; Ermiş, Muammer (2016-05-01) In this paper, a multiple synchronous reference frame (MSRF) analysis framework is developed to determine the positive-and negative-sequence components of all interharmonic and harmonic currents produced by alternating current electric arc furnace (AC EAF) installations, which can be considered as balanced but asymmetrical three-phase, three-wire loads on the power system. The aim of developing the MSRF analysis framework is twofold; deep understanding of the EAF characteristics, and fast and accurate gener...
STARTING TRANSIENTS IN SLIP ENERGY RECOVERY INDUCTION-MOTOR DRIVES .1. FORMULATION AND MODELING AKPINAR, E; PILLAY, P; Ersak, Aydın (1992-03-01) A detailed study of the rotor phenomena including the rectifier commutation angle and inverter harmonics is facilitated by the use of the actual rotor conduction sequence variables instead of transformed variables that are used in most other IM drive systems. The starting transients of slip energy recovery IM drives comprising three stages are presented here; (a) the starting from zero speed with a starting resistor connected to the output of the rotor rectifier; (b) a transition period in which the invert...
Investigation of multilevel inverters for d-statcom applications Deniz, Mustafa; Ermiş, Muammer; Department of Electrical and Electronics Engineering (2009) The most important advantages of Multilevel Inverters are the absence of a coupling transformer for medium voltage applications and low harmonic current content. In this way, relocatable and economical STATCOM systems can be realized. Complex control algorithms and the isolation problems of measurement devices and power supplies are the main challenging parts of this type of application. In this study, the design, realization, and the performance of a Voltage Source Type Cascaded Multilevel Converter Based ...

Citation Formats

A. Koyuncu, M. Şahin, and H. N. Özgüven, “Extended Abstract: Dynamic Behavior of a Compliant Mechanism Driven by Stacked Piezoelectric Actuators,” 2018, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/38837.