2020-2021 Eğitim Öğretim Yılı Bitirme Projeleri

Hand Exoskeleton Design Based on Shape Memory Alloy Actuators for Hand Rehabilitation

(Bu Proje TÜBİTAK 2209/A Programı Tarafından Desteklenmiştir)

Proje Öğrencileri: A. KAVAS, B. SİYAH, C.E. ÖZTÜRK, M.C. KARSLIOĞLU, K.İ. URAL, N. SÜME

Proje Danışmanı : Dr. Samet Akar

Abstract : Nowadays, different methods are being developed for hand rehabilitation. The purpose of the hand rehabilitation process is to accelerate the treatment of injuries to the muscles that are in the interior and grip the median nervous area. Injuries to this muscle lead to serious conditions such as Carpal Tunnel Syndrome. As a result, power losses may occur in the fingers. In this project, it is aimed to operate the relevant muscle groups by opening and closing the hand with the mechanism placed on the hand. Shape memory alloys are used for movement. Shape memory alloy memories can use in various forms such as springs and wires. When a certain amount of heat is given to the deformed spring or wire, the spring or wire return in its initial position. 2 springs are used for one hand. In this way, the hand can be opened and closed. In this project, touch screen interface is used. The springs work with the commands given on the touch screen. In this way, individual movements occur in the fingers for the person. The gesture commands used on this touch screen are sent to the person’s own e-mail. In this way, treatment can be performed at home with the XSkeloton device. In this project, it is aimed to design and manufacture a hand rehabilitation device using shape alloy memory springs.

Low-Cost Posture Rehabilitation with Soft Robotics

(Bu Proje TÜBİTAK 2209/B Programı Tarafından Desteklenmiştir)

Proje Öğrencileri: AKSUNGUR,A.COŞGUNGÖNÜL,H.O.KOYUNCU,Y.ULUBEY

Proje Danışmanı : Dr. Özgün SELVİ

Abstract : The main purpose of this project is to design the necessary device for correct posture with low cost with Flexible Robotic applications. The project, which is planned to be designed, will be produced with a flexible robotic application, which has become one of the favorite topics of today’s technology, unlike the robots produced to correct traditional posture. In short, the aim of this project is to use the vision, softness and minimum damage advantage provided by the developing flexible robot system to provide the correct posture. The aim of this project; To gain a new vision with a low budget by adding a flexible robotic technique to the field of posture rehabilitation devices. All part production and assembly of this project, which was tried to be produced with this vision during the pandemic process, was carried out by team members. It has the opportunity to enter the mass production line. It is thought that the project is a candidate for a patent because it is a project that has not been tried before in its field and because of the low budget advantage it provides.

Design of a VTOL Aircraft

(Bu Proje TÜBİTAK 2209/A Programı Tarafından Desteklenmiştir)

Proje Öğrencileri: A.A. AKÇORA, Ö.R. BOZ, Ş.B. SAKARYA

Proje Danışmanı : Dr. Turgut AKYÜREK

Abstract : A fixed wing unmanned mini/midi VTOL aircraft with vertical take-off and landing capability on any ground during landing and take-off has been designed. Design studies included literature survey, deciding on design specifications, project planning and management, conceptual design, embodiment design, detailed design, preparation of production documentation for each part and assembly (route sheets and operation sheets related to manufacturing), and test documentation to be used in verifying design, implementation of production and tests. A design study consisting of 29 customer requests and 32 engineering characteristics, 76 sub-features proposed for providing functions and solving problems in the design, and a total of 276 ideas, was carried out. The aircraft can reach an altitude of 4500 m with at least 500 gr payload, reach a speed of 120 km/h, fly 140 km distance, stay in the air for 4 hours, accelerate ±5 g and perform a remotely controlled task.

Tribometer

Proje Öğrencileri: A. DOĞAN, U.B AKAD, M. YİNSEL, G. AĞDACIOĞLU, Ö. AKBIYIK

Proje Danışmanı : Dr. Samet AKAR, Dr. Hakan TANRIÖVER

Abstract : Our aim in this project is to find the coefficient of friction within the determined parameters by observing the frictional wear. We have done the tribometer devices on the market and the patent and literature research on tribology. We decided to make local, portable and accessible tribometer device that market needs. There will be a test material depending on the rotational movement given by the motor we positioned on the base of the device. Tungsten rubs against the pin with the carbide tip. Loadcell is used for force measurement, its values are read from Arduino. Production was made in accordance with G99 standards. Wear loss and thickness differences methods were used. The friction coefficient was measured with the help of the values read from the Arduino.

Air Purifier Design and Prototype Manufacturing

Proje Öğrencileri: O. KALAY, B. GOKMEN, M.E. OZKAN, M.A.B. ÇOL, Ş.A. AĞTAŞ

Proje Danışmanı : Prof. Dr. Haşmet Türkoğlu

Abstract : According to researches, nearly 90% of human life is spent indoors. As a result, polluted air affects people over time and can cause various diseases. With the corona process, the nature of this problem has become more and more serious day by day. While doing this project, our aim was always to be more beneficial to human life. In our project, we aimed to obtain a device with maximum efficiency and ideal price range by looking at it from the eyes of the consumer. As a result of the data we obtained while doing the literature research, we combined 3 filters in order to obtain a different and more effective design than the products on the market, and we benefited from the UV-C lamp’s ability to neutralize most pests, including very small microbes. As a result, we completed the production by considering our system in terms of aesthetics.

Numerical And Experimental Fire Simulation In Subway Station

Proje Öğrencileri: A. KILIÇ, F.AYDIN, S. KARAV, H.N. YAVUZ, U.A. ŞİMŞEK

Proje Danışmanı : Dr. Ece AYLI

Abstract : Underground metro networks are expanding rapidly in all around the world and during the last few decades, tunnel fire accidents with severe casualties occurred in various countries. The frequency of the tunnel fire incidents will be increasing due to the increased amount of underground transportation routes in the upcoming years. In order to prevent the loss of lives in tunnel fires, accurate design of Tunnel Ventilation Systems is crucial. In this study, numerical simulation and scene experiment with metro crossover interval are performed to estimate the effect of ventilation model and the position of the most unfavorable smoke removal on passenger’s life safety under fire conditions.

Aerodynamic Drag Reduction Of Trailer Trucks Using External Attachments With Numerical And Experimental Methods

Proje Öğrencileri: B. ÇAPAROĞLU, Y.O. ÖZCAN, M. BURAKAN, M. ÇELIK, T.A. ILGIN

Proje Danışmanı : Dr. Ece AYLI

Abstract : Fuel consumption is one of the significant factors that increase the operating costs with increasing the fuel prices in the transportation industry. The most significant factor that impacts fuel consumption is an aerodynamic drag with an effect of higher than 10%, especially for trucks. To enhance the aerodynamic performance of the vehicles, active and passive methods are developed. In this study, five different add-ons, which are passive control methods, are investigated to reduce drag forces. These add-ons are top deflector, rear deflector, side deflector, trailer bottom coating, and front roof fairing. Within this scope, first, the wind tunnel tests are performed in a test section of the open-type wind tunnel. The model baseline truck and add-ons are manufactured with an additive manufacturing technique for the experimental studies. Then, the numerical solution is verified, and all add-ons that have different characteristics are analyzed using Ansys Fluent. Results show that add-on types have a significant effect on drag forces.

3D Printer Design for Soft Robotic Sensors

Proje Öğrencileri: H.F. ILTER, M.E. AKAN, M. YETIM. S.Y. CIRNIK, T.TOMAC

Proje Danışmanı : Dr. Özgün SELVİ

Abstract : With the latest technology, the development and interest in soft robots have gained speed. Flexible robots are generally produced by the casting method. This traditional production method cannot meet the required quality and production speed. For this, it is aimed to solve the problem by accelerating the production of robots without decreasing the quality. The most successful method for solving this problem is 3D printers, which could print multiple materials. It was decided to be used multi-materials printing, and the system design was carried out. This study aims to design and produce a multi-material 3D printer capable of printing non-conductive and conductive rapidly curing silicone that can be used in soft robotics and medical simulators. The electrical conductivity was achieved by mixing silicone and graphite powder. The parts in the designed system are also obtained by the additive manufacturing method. Test pieces were printed using the produced 3D printer. Specific tests have been carried out on the produced parts. Technical data such as strength, elasticity, electrical conductivity have been obtained.

Heat Transfer in a Pipe

Proje Öğrencileri: Ö.S. Doğan, O.M. Oluzlu, E. Yıldırım

Proje Danışmanı : Dr. Ece AYLI

Abstract : Piping systems are encountered in almost every engineering design and therefore a lot of researches have been worked on it. Since there are many pipe flows at different velocities, different shapes of pipe cross-sections and many pipe flows with different fluid properties, the field of study on this subject is quite wide and open. The aim of our project is to build an experimental setup and calculate the convection heat transfer coefficient based on the measurements taken on the setup. While doing this, another aim of our project is to reach different Reynolds numbers and to ensure the diversity of the results obtained. After taking the measurements on the experimental setup, we calculated the Nusselt and Reynolds numbers using correlations and then the convection heat transfer coefficient, which is the aim of the project. We compared the obtained results with CFD and numerical results and performed error calculations.

Auto Store robotic warehouse system design

Proje Öğrencileri: A. AKSOY, M.O. OZ, S. OZBAS, Y.E. KONAK, I. EKICI

Proje Danışmanı : Onat TOTUK

Abstract : The main objective for this project is that manufacturing an Automated Storage Retrieval System. ASRS is a type of storage that creates a lot of benefits that are extremely beneficial to both employee and employers. The most crucial benefits are creating a bigger storage capacity, less manpower, faster transportation and minimal errors during operations. All of these processes result as a benefit in terms of economy. To achieve these goals, designing a robot, bins and a grid system was the two initial steps. Grid system is responsible for having the vertical shelves in itself. These shelves are made to have the bins in it. The items of storage are loaded inside the bins. Robot is the main player in this system. It has to lift the bins using its elevator within itself and store them inside for a brief time to transport them to the identified arrival place whether it is a transfer center or another grid spot. This process also requires a locking mechanism that elevator would lock its plate to the bins. Since robot is moving in X and Y directions, robot had to lift its own wheels when the moving direction isn’t same with the direction of the wheels. All of these processes need to be working in sync.