COI code: JR_TAVA-5-2_006
Paper Language: English
How to Download This Paper
For Downloading the Fulltext of CIVILICA papers please visit the orginal Persian Section of website.
Authors A new multi-switch circuit with adaptive capacitance for semi-active piezoelectric shunt dampingSaber Mohammadi - Associate Professor, Mechanical Engineering Department, Engineering Faculty, Razi University, Kermanshah, Iran
Akram Khodayari - Assistant Professor, Mechanical engineering department, Engineering faculty, Razi university, Kermanshah, Iran
Salar Hatam - PhD Candidate, Mechanical Engineering Department, Engineering Faculty, Razi University, Kermanshah, Iran
Abstract:Piezoelectric-based shunt dampers are developed in recent years because of simplicity in comparison with other methods. In these methods, a part of converted mechanical energy is stored in the internal electrostatic field of the piezoelectric and a minor portion is dissipated in the load resistor of damping circuits. In recent methods, the electrostatic field of piezoelectric elements is reduced (not eliminated) and a portion (not whole) of the stored energy is extracted and dissipated in the resistor. In this paper, using a new adaptive multi-switch network and RLC resonance concept, the electrostatic field of piezoelectric is eliminated (not reduced) and almost the whole converted energy(not a portion) is extracted and dissipated in the load resistor. Using the proposed network, self-tuning ability provides electrical resonance in the circuit for almost all excitation types in a wide frequency band and also any mass and stiffness of the structure. Most of the electronic damping techniques are presented just for harmonic excitations, but the proposed technique in the current work is suitable for both harmonic and random excitations. In mechanical structures with variable mass such as vehicles, airplanes and missiles, structure mass will be changed while motioning. For such systems, resonance frequencies will change by structure mass during operation. Recent RLC dampers are not self-tuning for different mechanical stiffness or mass, but, the proposed technique is completely adaptive with variable mechanical characteristics of the vibrating structure. Consequently, significant damping is obtainable in comparison with other electronic damping techniques.
Keywords:vibration damping, electronic semi-active damper, Piezoelectric, electrical resonance
COI code: JR_TAVA-5-2_006
how to cite to this paper:If you want to refer to this article in your research, you can easily use the following in the resources and references section:
Mohammadi, Saber; Akram Khodayari & Salar Hatam, 2019, A new multi-switch circuit with adaptive capacitance for semi-active piezoelectric shunt damping, Journal of Theoretical and Applied Vibration and Acoustics 5 (2), https://www.civilica.com/Paper-JR_TAVA-JR_TAVA-5-2_006.htmlInside the text, wherever referred to or an achievement of this article is mentioned, after mentioning the article, inside the parental, the following specifications are written.
First Time: (Mohammadi, Saber; Akram Khodayari & Salar Hatam, 2019)
Second and more: (Mohammadi; Khodayari & Hatam, 2019)
For a complete overview of how to citation please review the following CIVILICA Guide (Citation)
The University/Research Center Information:
Type: state university
Paper No.: 7854
in University Ranking and Scientometrics the Iranian universities and research centers are evaluated based on scientific papers.
Research Info Management
Export Citation info of this paper to research management softwares
New Related Papers
- Temporal and Spatial Changes of macrozeobenthos diversity in the Gaveroud River, Sanandaj, Iran
- The Investigation of the Role of Biotechnology in Biodiversity Conservation Programs, and Development of Novel Approaches to Save Indigenous Knowledge
- VALUING OTHER KNOWLEDGES: INDIGENOUS RIGHTS, KNOWLEDGE AND BIODIVERSITY PAPER FOR INTERNATIONAL CONFERENCE ON INDIGENOUS KNOWLEDGE AND BIOLOGICAL DIVERSITY, 2011 KERMAN, IRAN
- A Study of Systemic / Strategic Concepts Awareness among Fars Educational Managerial Staffs in their Carriers
- Implementing Six Sigma in Industry and Education Sectors
The Above articles are recently indexed in the related subjects
Iran Scientific Advertisment Netword
Share this paper
WHAT IS COI?
COI is a national code dedicated to all Iranian Conference and Journal Papers. the COI of each paper can be verified online.