Show/Hide Menu
Hide/Show Apps
Logout
Türkçe
Türkçe
Search
Search
Login
Login
OpenMETU
OpenMETU
About
About
Open Science Policy
Open Science Policy
Communities & Collections
Communities & Collections
Help
Help
Frequently Asked Questions
Frequently Asked Questions
Guides
Guides
Thesis submission
Thesis submission
MS without thesis term project submission
MS without thesis term project submission
Publication submission with DOI
Publication submission with DOI
Publication submission
Publication submission
Supporting Information
Supporting Information
General Information
General Information
Copyright, Embargo and License
Copyright, Embargo and License
Contact us
Contact us
Active vibration control of a smart sandwich plate
Date
2016-09-08
Author
Aksoy, Yunus Tansu
Şahin, Melin
Metadata
Show full item record
Item Usage Stats
110
views
0
downloads
Cite This
In aerospace engineering, sandwich construction is preferred not only for its great decrease in weight but also for its advantage of smooth surfaces and perfect fatigue resistance. However, lots of vibration problems occur in these light weight structures. In this study, the first three vibration modes of a smart sandwich plate are aimed to be suppressed by using active vibration control techniques comprising a pole placement controller. Smart sandwich plate is composed of a passive sandwich composite plate and piezoelectric patches (PZT, Lead-Zirconate-Titanate) attached with epoxy adhesive at specific locations determined by using finite element modelling and analysis. Those PZTpatches on the smart sandwich plate are then used both as actuators and sensors. After the system is identified in detail, various active vibration controllers are designed in MATLAB Simulink environment. The three different designed controllers are then observed to suppress the vibrations in each of the aimed mode successfully by working. As a result, in this research study, it is shown that the piezoelectric patch groups located regarding the maximum curvature of the vibrational modes of a sandwich plate structure can be used with designed controllers to suppress the intended modes actively in an efficient manner.
URI
https://hdl.handle.net/11511/77606
DOI
https://doi.org/10.1201/9781315641645-15
Conference Name
International Conference on Structural Engineering, Mechanics and Computation, (05 - 07 Eylül 2016)
Collections
Department of Aerospace Engineering, Conference / Seminar
Suggestions
OpenMETU
Core
Active vibration control of complex structures in modal space
Mersin, Kemal; Yazıcıoğlu, Yiğit; Şahin, Melin; Department of Mechanical Engineering (2014)
Aerospace structures are designed to be light-weight to obtain high performance. Reduction in weight makes the structure flexible and lower frequency modes can be easily excited. Moreover those modes have low damping and vibrations do not attenuate immediately. Passive systems are effective to control the vibrations but they can be heavy and most of the time they do not respond to changing environment conditions. An active system is necessary for low-weight adaptive vibration reduction system. Modal Space C...
Optimizing the Heat Treatment Parameters of Additively Manufactured IN718 Components
Kaleli, Tuğçe; Yağmur, Aydın; Tirkeş, Süha; Gür, Cemil Hakan (2021-9-01)
Ni-based superalloys have gained importance in aerospace and energy industries due to their excellent mechanical properties at elevated temperatures. Conventional manufacturing methods such as casting and forging create defects having adverse effects on the service performance. Moreover, microstructures of cast and wrought products contain brittle phases, which negatively affect the machinability. In recent years, additive manufacturing techniques have been developed for production of Ni-based super...
Mechanical characterization of additively manufactured Ti-6Al-4V aircraft structural components produced by electron beam melting
Yılmaz, Fatih; Şahin, Melin; Gürses, Ercan; Department of Aerospace Engineering (2022-8-25)
Weight reduction of structural parts is one of the most important efforts of design and analysis studies to improve fuel efficiency and flight performance of aerospace vehicles through topology optimization creating complex geometric designs that are lighter but cannot be produced via conventional manufacturing methods. Instead, the manufacturing of the resulting designs is possible with additive manufacturing methods where the final product is obtained by adding layer upon layer to obtain close to the near...
DEVELOPMENT OF BOLTED FLANGE DESIGN TOOL BASED ON FINITE ELEMENT ANALYSIS AND ARTIFICIAL NEURAL NETWORK
Yildirim, Alper; Kayran, Altan; Gulasik, Hasan; Çöker, Demirkan; Gürses, Ercan (2015-11-19)
In bolted flange connections, commonly utilized in aircraft engine designs, structural integrity and minimization of the weight are achieved by the optimum combination of the design parameters utilizing the outcome of Many structural analyses. Bolt size, the number of bolts, bolt locations, casing thickness, flange thickness, bolt preload, and axial external force are some of the critical design parameters in bolted flange connections. Theoretical analysis and finite element analysis (FEA) are two main appr...
Development of bolted flange design tool based on finite element analysis and artificial neural network
Yıldırım, Alper; Kayran, Altan; Department of Aerospace Engineering (2015)
In bolted flange connections, commonly utilized in aircraft engine designs, structural integrity and minimization of the weight are achieved by the optimum combination of the design parameters utilizing the outcome of many structural analyses. Bolt size, number of bolts, bolt locations, casing thickness, flange thickness, bolt preload, and axial external force are some of the critical design parameters in bolted flange connections. Theoretical analysis and finite element analysis (FEA) are two main approach...
Citation Formats
IEEE
ACM
APA
CHICAGO
MLA
BibTeX
Y. T. Aksoy and M. Şahin, “Active vibration control of a smart sandwich plate,” presented at the International Conference on Structural Engineering, Mechanics and Computation, (05 - 07 Eylül 2016), 2016, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/77606.