Vibration characteristics of mineral composite beams by experimental modal test method

Hüseyin Dal; Ali Osman Kurt; Seda Yıldız

doi:10.1515/mt-2022-0092

Article

Vibration characteristics of mineral composite beams by experimental modal test method

Hüseyin Dal
Hüseyin Dal received his M.Sc. and a Ph.D. degree in Mechanical Engineering from the Sakarya University, Turkey, in 2005 and 2011, respectively. He has studied as a researcher at the Brunel University, UK, in 2012, for one year. Since 2011, he has been at the University of Sakarya, where he is currently a lecturer and an Assistant Professor of Mechanical Engineering. His primary research interests are in vibration, acoustics, and industrial noise.
, Ali Osman Kurt
Ali Osman Kurt had his master’s and doctorate degrees from UMIST in England in 1996 and 1999 in powder metallurgy and advanced ceramic powder production, respectively. He is currently working as a senior lecturer professor in the Sakarya University, Engineering Faculty at the Department of Metallurgy and Materials Engineering. His research interest covers the synthesis and use of advanced ceramics and powder metallurgy.
and Seda Yıldız
Seda Yıldız received her bachelor’s degree (Third-class Honors) in Metallurgical and Materials Engineering (2018) and Mechanical Engineering (2019) at the Sakarya University, Turkey. She received a master’s degree in Metallurgical and Materials engineering at the same unıversity in 2021. She studied for her master thesis on composite materials vibrations. She has been working as an R&D engineer at a saw machine manufacturer, Kar Metal Industry, since 2019, Sakarya, Turkey.

Published/Copyright: September 6, 2022

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From the journal Materials Testing Volume 64 Issue 9

Abstract

Some machines, such as heavy presses and rammers, can be exposed to big shock and inertial forces under dynamic severe working conditions. Even if vibration isolation to the foundations of machines operating under dynamic loads is applied, the exposure of these machines to shock and resonance loads may not be adequately prevented. The sensitivity of these machines, the product quality, or life span can also incredibly decrease. Therefore, it is essential to know the vibration behaviors of machine bodies and parts. This study investigates vibration characteristics of polymer matrix composite (PMC) materials by the experimental modal test method. Nine different composite beam samples having sizes of 20 × 25 × 480 mm were produced for modal tests. Composite beams contain different ratios of aggregate and epoxy resin. Each composite beam’s natural frequencies and damping ratios were defined with frequency response and coherence functions taken from the experimental modal tests. The results from the modal analysis revealed that the most influential parameter on the vibration properties was the gravel ratio. As a result of the experimental study, it was concluded that while epoxy-resin, gravel and fine-sand additives increased the stiffness of PMC beam, gravel and fine sand additives also increased the damping rate of PMC beam.

Keywords: composite beam vibration; experimental modal test; machine vibration; mineral casting; polymer matrix composite

Corresponding author: Hüseyin Dal, Mechanical Engineering, Sakarya University, Sakarya, Turkey, E-mail: hdal@sakarya.edu.tr

Funding source: Sakarya University

Award Identifier / Grant number: 2021-7-24-48

Funding source: TUBITAK-2210-D

Award Identifier / Grant number: 1649B022001320

About the authors

Hüseyin Dal

Hüseyin Dal received his M.Sc. and a Ph.D. degree in Mechanical Engineering from the Sakarya University, Turkey, in 2005 and 2011, respectively. He has studied as a researcher at the Brunel University, UK, in 2012, for one year. Since 2011, he has been at the University of Sakarya, where he is currently a lecturer and an Assistant Professor of Mechanical Engineering. His primary research interests are in vibration, acoustics, and industrial noise.

Ali Osman Kurt

Ali Osman Kurt had his master’s and doctorate degrees from UMIST in England in 1996 and 1999 in powder metallurgy and advanced ceramic powder production, respectively. He is currently working as a senior lecturer professor in the Sakarya University, Engineering Faculty at the Department of Metallurgy and Materials Engineering. His research interest covers the synthesis and use of advanced ceramics and powder metallurgy.

Seda Yıldız

Seda Yıldız received her bachelor’s degree (Third-class Honors) in Metallurgical and Materials Engineering (2018) and Mechanical Engineering (2019) at the Sakarya University, Turkey. She received a master’s degree in Metallurgical and Materials engineering at the same unıversity in 2021. She studied for her master thesis on composite materials vibrations. She has been working as an R&D engineer at a saw machine manufacturer, Kar Metal Industry, since 2019, Sakarya, Turkey.

Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.
Research funding: This work has been supported financially by the Scientific Research Projects Coordination Unit of Sakarya University under project number 2021-7-24-48 and by TUBITAK-2210-D under project number 1649B022001320.
Conflict of interest statement: The authors declare no conflicts of interest regarding this article.

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Published Online: 2022-09-06

Published in Print: 2022-09-27

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https://doi.org/10.1515/mt-2022-0092

Keywords for this article

composite beam vibration; experimental modal test; machine vibration; mineral casting; polymer matrix composite