Sezgin Ersoy - Academia.edu (original) (raw)
Papers by Sezgin Ersoy
Polymers
As a result of the developments in additive manufacturing (AM) technology, 3D printing is transfo... more As a result of the developments in additive manufacturing (AM) technology, 3D printing is transforming from a method used only in rapid prototyping to a technique used to produce large-scale equipment. This study presents the fabrication and experimental studies of a 3D-printed strain sensor that can be used directly in soft applications. Photopolymer-based conductive and flexible ultraviolet (UV) resin materials are used in the fabrication of the sensor. A Stereolithography (SLA)-based printer is preferred for 3D fabrication. The bottom base of the sensor, which consists of two parts, is produced from flexible UV resin, while the channels that should be conductive are produced from conductive UV resin. In total, a strain sensor with a thickness of 2 mm was produced. Experimental studies were carried out under loading and unloading conditions to observe the hysteresis effect of the sensor. The results showed a close linear relationship between the strain sensor and the measured resi...
Environmental Engineering and Management Journal
Journal of Mechatronics and Artificial Intelligence in Engineering
Even though we accept that the known history of energy use started with the first fire lit by man... more Even though we accept that the known history of energy use started with the first fire lit by man, we can see its scientific definition in the vis-viva equation. The phenomenon of energy has been explained by the theories produced as a result of the observations of kinetic events, instead of imitating them from nature. All algorithms developed by human beings to obtain energy work against nature and may cause disruption of the ecological balance. However, non-human alive beings living in the integrity of nature can produce energy in harmony with nature. This study aims to draw attention to this energy conversion process, which we will define as cold energy.
Vibroengineering PROCEDIA
The aim of this study is to process the notes on the music sheet, written by hand on the musical ... more The aim of this study is to process the notes on the music sheet, written by hand on the musical note line or edited in the computer environment, with the image processing technique and to play the music over the phone application. This application will be developed with Java in the Android Studio environment and image processing will be done using the OpenCV Library. Detection of a note will be memorized by calculating the value and duration of the note. After these sounds, the frequency values of the notes will be available on the phone.
Vibroengineering PROCEDIA
In this study, it is aimed to perform Finite Element Analysis (FEA) of micromirror based on Micro... more In this study, it is aimed to perform Finite Element Analysis (FEA) of micromirror based on Micro-Electro-Mechanical Systems (MEMS) and to examine the nonlinear and dynamic responses of this system. Micromirror devices are indispensable, especially for optical systems and form the basis of them. In this work, dynamic and nonlinear responses of micromirror with 4 symmetric arms and one reflective surface were investigated. During the design and modeling, it is assumed that the upper and lower layers of the reflective surface have equal tensile and compressive stresses. The analysis of the system was obtained by applying a force of up to 30 GPa Prestressed on the reflective surface. The design and FEA of the micromirror system were made with the Comsol Multiphysics program. The nonlinear response of the analysis was carried out with the MATLAB program. This model, which has the most basic design of micromirror structures used in optical systems, is thought to be a source for a good ex...
Journal of Mechatronics and Artificial Intelligence in Engineering
Greenhouses are a popular agricultural production method by providing artificial climatic conditi... more Greenhouses are a popular agricultural production method by providing artificial climatic conditions. Providing optimum climatic conditions depends on the equipment of the greenhouse. Greenhouse equipment consists of systems such as heating, ventilation, shading, irrigation, and fertilization. In modern greenhouse cultivation, all these have become controllable with smart systems. These modern greenhouses, in other words smart greenhouses, can read the ambient conditions in real-time with their advanced sensor systems and enable processes such as irrigation, adjustment of ambient temperature, and ventilation to be carried out autonomously. In this study, the working principle, general structure, design, and types of equipment used in the greenhouse automation system are explained, and the system is designed and simulated on the Unity Engine.
Journal of Engineering Research
The emergence of the microfluidic chip was a game-changer in microbiological analysis platforms. ... more The emergence of the microfluidic chip was a game-changer in microbiological analysis platforms. This technology, by combining physics, chemistry, biology, and computing, helps researchers to obtain precise results in a shorter time. However, it requires more advancements in order to lessen its limitations. This study presents the design, modelling, and microbiological analysis of a microelectromechanical system (MEMS) based microfluidic chip. Three different microfluidic chips have been developed during the design process. These chips have different inlet channels and one outlet channel. The modelling process was carried out with Multiphysics Software. Pressure and velocity data in micron-sized channels were checked for each system. The flow directions of the fluids in the inlet and outlet channels were observed according to the pressure change. As a result of the analysis, the highest velocity was found in the microfluidic chip with three inlet channels. In comparison, the highest...
NOVA Science Publishers Inc., 2011
NOVA Science Publishers Inc., 2011
Encyclopedia of Sensors and Biosensors, 2022
Journal of Aeronautics and Space Technologies (Havacilik ve Uzay Teknolojileri Dergisi), 2020
The additive manufacturing and 3-dimensional manufacturing technology offer unparalleled flexibil... more The additive manufacturing and 3-dimensional manufacturing technology offer unparalleled flexibility in terms of part geometry, material composition and manufacturing time. There are many difficulties in manufacturing parts in the aerospace field. Thin-walled aircraft engine components and structures with complex geometry, the difficulties encountered in the processing of materials, are the other main factors that compel the aviation industry to adopt the use of layered manufacturing technology. It is progressing in the direction of radically changing the aerospace sector in the production of extremely complex and lightweight parts with material wastes that are almost none. The aerospace engine industry requires stronger, lighter and more durable components. Today's additive manufacturing technology provides new possibilities to meet these situations. In this study, research and development activities carried out in the field of layered manufacturing in the aviation industry hav...
In the present work, the friction and wear property of high density polyethylene / Styrene-Butadi... more In the present work, the friction and wear property of high density polyethylene / Styrene-Butadiene Rubber polymer blends was studied. Styrene-Butadiene Rubber addition in the HDPE was 5, 10, 15, and 20 wt%. The result showed that the addition of fillers to the composite changed the friction coefficient and wear rate. All specimen wear loss increases with increasing load and sliding distance; meanwhile the friction (static and dynamic) coefficient increases. Wear rate of all HDPE composites are larger than that of pure HDPE. The results obtained in this study indicate that HDPE / Styrene-Butadiene Rubber polymer applied to the abrasion test indicate that road and load values to increase the effect of wear, but this effect by increasing the rate of Styrene-Butadiene Rubber additives lead to a reduction in wear is observed that value. In the friction test, the coefficients of friction are the rate of increase Styrene-Butadiene Rubber that the friction coefficient increases.
Mathematical Models in Engineering, 2021
Systems that allow engineering studies to be done in a virtual environment with computer software... more Systems that allow engineering studies to be done in a virtual environment with computer software, to test designs in a virtual environment and to carry out design verification studies are developing day by day. The Finite Element Method (FEM) is a method used to simulate structurally with strength visualizations, production and weight determination, proper management of materials and costs, and numerically predict how a part or assembly behaves under certain conditions with Finite Element Analysis (FEA). In this paper, control of connection elements, material and mesh (solid, surface and volume) controls and preliminary analysis processes were carried out after transferring a 3D data with defined material and connection elements to Ls-DYNA program to perform Finite Element Analysis. As a result of the preliminary analysis, the crash test of the car with the wall was carried out with the Ls-DYNA program of the model, which is suitable for Finite Element analysis. The results of the ...
Chemical Engineering Journal, 2021
Revista Romana de materiale = Romanian journal of materials = RRM
In comparison to metals, generally unfilled polymers have low thermal conductivity and low wear r... more In comparison to metals, generally unfilled polymers have low thermal conductivity and low wear resistance. Therefore, various filler and reinforcements are frequently added to the unfilled polymers to improve their tribological and thermal properties. So, filled polymers are preferred for many industrial sectors such as aircraft, automotive, electrical/electronic and household application. Friction and wear behaviour is one of the most important properties of polymer and its composites. Therefore, many studies on friction and wear properties of polymer and its composites have been carried out. In the present work, the friction and wear properties of high density polyethylene/talc and high density polyethylene/calcite polymer composites were studied. Fillers proportions in the HDPE were 5, 10, 15, and 20 wt%. The morphologies of the fracture surfaces of specimens were observed with a scanning electron microscopy (SEM). The result showed that the addition of fillers to the composite ...
Polymers
As a result of the developments in additive manufacturing (AM) technology, 3D printing is transfo... more As a result of the developments in additive manufacturing (AM) technology, 3D printing is transforming from a method used only in rapid prototyping to a technique used to produce large-scale equipment. This study presents the fabrication and experimental studies of a 3D-printed strain sensor that can be used directly in soft applications. Photopolymer-based conductive and flexible ultraviolet (UV) resin materials are used in the fabrication of the sensor. A Stereolithography (SLA)-based printer is preferred for 3D fabrication. The bottom base of the sensor, which consists of two parts, is produced from flexible UV resin, while the channels that should be conductive are produced from conductive UV resin. In total, a strain sensor with a thickness of 2 mm was produced. Experimental studies were carried out under loading and unloading conditions to observe the hysteresis effect of the sensor. The results showed a close linear relationship between the strain sensor and the measured resi...
Environmental Engineering and Management Journal
Journal of Mechatronics and Artificial Intelligence in Engineering
Even though we accept that the known history of energy use started with the first fire lit by man... more Even though we accept that the known history of energy use started with the first fire lit by man, we can see its scientific definition in the vis-viva equation. The phenomenon of energy has been explained by the theories produced as a result of the observations of kinetic events, instead of imitating them from nature. All algorithms developed by human beings to obtain energy work against nature and may cause disruption of the ecological balance. However, non-human alive beings living in the integrity of nature can produce energy in harmony with nature. This study aims to draw attention to this energy conversion process, which we will define as cold energy.
Vibroengineering PROCEDIA
The aim of this study is to process the notes on the music sheet, written by hand on the musical ... more The aim of this study is to process the notes on the music sheet, written by hand on the musical note line or edited in the computer environment, with the image processing technique and to play the music over the phone application. This application will be developed with Java in the Android Studio environment and image processing will be done using the OpenCV Library. Detection of a note will be memorized by calculating the value and duration of the note. After these sounds, the frequency values of the notes will be available on the phone.
Vibroengineering PROCEDIA
In this study, it is aimed to perform Finite Element Analysis (FEA) of micromirror based on Micro... more In this study, it is aimed to perform Finite Element Analysis (FEA) of micromirror based on Micro-Electro-Mechanical Systems (MEMS) and to examine the nonlinear and dynamic responses of this system. Micromirror devices are indispensable, especially for optical systems and form the basis of them. In this work, dynamic and nonlinear responses of micromirror with 4 symmetric arms and one reflective surface were investigated. During the design and modeling, it is assumed that the upper and lower layers of the reflective surface have equal tensile and compressive stresses. The analysis of the system was obtained by applying a force of up to 30 GPa Prestressed on the reflective surface. The design and FEA of the micromirror system were made with the Comsol Multiphysics program. The nonlinear response of the analysis was carried out with the MATLAB program. This model, which has the most basic design of micromirror structures used in optical systems, is thought to be a source for a good ex...
Journal of Mechatronics and Artificial Intelligence in Engineering
Greenhouses are a popular agricultural production method by providing artificial climatic conditi... more Greenhouses are a popular agricultural production method by providing artificial climatic conditions. Providing optimum climatic conditions depends on the equipment of the greenhouse. Greenhouse equipment consists of systems such as heating, ventilation, shading, irrigation, and fertilization. In modern greenhouse cultivation, all these have become controllable with smart systems. These modern greenhouses, in other words smart greenhouses, can read the ambient conditions in real-time with their advanced sensor systems and enable processes such as irrigation, adjustment of ambient temperature, and ventilation to be carried out autonomously. In this study, the working principle, general structure, design, and types of equipment used in the greenhouse automation system are explained, and the system is designed and simulated on the Unity Engine.
Journal of Engineering Research
The emergence of the microfluidic chip was a game-changer in microbiological analysis platforms. ... more The emergence of the microfluidic chip was a game-changer in microbiological analysis platforms. This technology, by combining physics, chemistry, biology, and computing, helps researchers to obtain precise results in a shorter time. However, it requires more advancements in order to lessen its limitations. This study presents the design, modelling, and microbiological analysis of a microelectromechanical system (MEMS) based microfluidic chip. Three different microfluidic chips have been developed during the design process. These chips have different inlet channels and one outlet channel. The modelling process was carried out with Multiphysics Software. Pressure and velocity data in micron-sized channels were checked for each system. The flow directions of the fluids in the inlet and outlet channels were observed according to the pressure change. As a result of the analysis, the highest velocity was found in the microfluidic chip with three inlet channels. In comparison, the highest...
NOVA Science Publishers Inc., 2011
NOVA Science Publishers Inc., 2011
Encyclopedia of Sensors and Biosensors, 2022
Journal of Aeronautics and Space Technologies (Havacilik ve Uzay Teknolojileri Dergisi), 2020
The additive manufacturing and 3-dimensional manufacturing technology offer unparalleled flexibil... more The additive manufacturing and 3-dimensional manufacturing technology offer unparalleled flexibility in terms of part geometry, material composition and manufacturing time. There are many difficulties in manufacturing parts in the aerospace field. Thin-walled aircraft engine components and structures with complex geometry, the difficulties encountered in the processing of materials, are the other main factors that compel the aviation industry to adopt the use of layered manufacturing technology. It is progressing in the direction of radically changing the aerospace sector in the production of extremely complex and lightweight parts with material wastes that are almost none. The aerospace engine industry requires stronger, lighter and more durable components. Today's additive manufacturing technology provides new possibilities to meet these situations. In this study, research and development activities carried out in the field of layered manufacturing in the aviation industry hav...
In the present work, the friction and wear property of high density polyethylene / Styrene-Butadi... more In the present work, the friction and wear property of high density polyethylene / Styrene-Butadiene Rubber polymer blends was studied. Styrene-Butadiene Rubber addition in the HDPE was 5, 10, 15, and 20 wt%. The result showed that the addition of fillers to the composite changed the friction coefficient and wear rate. All specimen wear loss increases with increasing load and sliding distance; meanwhile the friction (static and dynamic) coefficient increases. Wear rate of all HDPE composites are larger than that of pure HDPE. The results obtained in this study indicate that HDPE / Styrene-Butadiene Rubber polymer applied to the abrasion test indicate that road and load values to increase the effect of wear, but this effect by increasing the rate of Styrene-Butadiene Rubber additives lead to a reduction in wear is observed that value. In the friction test, the coefficients of friction are the rate of increase Styrene-Butadiene Rubber that the friction coefficient increases.
Mathematical Models in Engineering, 2021
Systems that allow engineering studies to be done in a virtual environment with computer software... more Systems that allow engineering studies to be done in a virtual environment with computer software, to test designs in a virtual environment and to carry out design verification studies are developing day by day. The Finite Element Method (FEM) is a method used to simulate structurally with strength visualizations, production and weight determination, proper management of materials and costs, and numerically predict how a part or assembly behaves under certain conditions with Finite Element Analysis (FEA). In this paper, control of connection elements, material and mesh (solid, surface and volume) controls and preliminary analysis processes were carried out after transferring a 3D data with defined material and connection elements to Ls-DYNA program to perform Finite Element Analysis. As a result of the preliminary analysis, the crash test of the car with the wall was carried out with the Ls-DYNA program of the model, which is suitable for Finite Element analysis. The results of the ...
Chemical Engineering Journal, 2021
Revista Romana de materiale = Romanian journal of materials = RRM
In comparison to metals, generally unfilled polymers have low thermal conductivity and low wear r... more In comparison to metals, generally unfilled polymers have low thermal conductivity and low wear resistance. Therefore, various filler and reinforcements are frequently added to the unfilled polymers to improve their tribological and thermal properties. So, filled polymers are preferred for many industrial sectors such as aircraft, automotive, electrical/electronic and household application. Friction and wear behaviour is one of the most important properties of polymer and its composites. Therefore, many studies on friction and wear properties of polymer and its composites have been carried out. In the present work, the friction and wear properties of high density polyethylene/talc and high density polyethylene/calcite polymer composites were studied. Fillers proportions in the HDPE were 5, 10, 15, and 20 wt%. The morphologies of the fracture surfaces of specimens were observed with a scanning electron microscopy (SEM). The result showed that the addition of fillers to the composite ...