Browsing Dept. of Mechanical Engineering - Master's degree by Issue Date
Now showing items 1-20 of 86
-
Design, development and performance evaluation of a three-axis miniature machining center
(Bilkent University, 2011)There is a growing demand for highly accurate micro-scale parts from various industries including medical, biotechnology, energy, consumer, and aerospace. Mechanical micro-machining which is capable of fabricating three ... -
Development of a supervisory controller for energy management problems
(Bilkent University, 2011)Multi energy source systems, like hybrid electric vehicles in automotive industry, started to attract attention as a remedy for the greenhouse gas emission problem. Although their environmental performances are better ... -
Development of a modular control algorithm for high precision positioning systems
(Bilkent University, 2012)In the last decade, micro/nano-technology has been improved significantly. Micro/nano-technology related products started to be used in consumer market in addition to their applications in the science and technology ... -
Elastic impact of a pendulum on frictional surface
(Bilkent University, 2012)Constrained impacts with friction frequently exist in mechanical systems such as robotic arms, hard disk drives and other mechanisms. Such discontinuous contacts, if not designed and analysed properly, can lead to ... -
Mechatronic design of a modular three-axis slider system for high-precision positioning applications
(Bilkent University, 2012)Following the recent improvements in precision engineering related technology, interest for micro/nano-engineering applications are increased and various micro/nano-scale operations and products are developed. For ... -
Concurrent design of energy management and vehicle stability control algorithms for a parallel hybrid vehicle using dynamic programming
(Bilkent University, 2012)Concurrent design of controllers for a vehicle equipped with a parallel hybrid powertrain is studied. Our work focuses on simultaneously solving two automotive control problems, energy management and vehicle stability, ... -
Injection molding of polymeric microfluidic devices
(Bilkent University, 2013)Mass-production of microfluidic devices is important for fields in which disposable devices are widely used such as clinical diagnostic and biotechnology. Injection molding is a well-known, promising process for the ... -
Modeling of cutting forces in micro milling including run-out
(Bilkent University, 2014)Micro milling is widely used in precision manufacturing industry which is suitable for producing micro scale parts having three dimensional surfaces made from engineering materials. High material removal rate is its main ... -
Microfluidic device with 3D electrode structure for high throughput dielectrophoretic applications
(Bilkent University, 2014-10)Microfluidics is the combination of micro/nano fabrication techniques together with knowledge of fluid behavior at the microscopic level to pursue powerful techniques in controlling, manipulating and measuring chemical, ... -
Nanotribological properties of graphene grown by chemical vapor deposition and transferred onto silicon oxide substrates
(Bilkent University, 2015)To extend the lifespan of mechanical systems, wear and friction must be minimized with the utilization of lubricants. On the other hand, traditional fluid-based lubrication schemes fail in nano- and micro-scale systems ... -
Modeling and fabrication of silicon micro-grooved heat pipes
(Bilkent University, 2015-04)Micro heat pipes (MHPs) are of current interest in the cooling of electronic components due to their high heat removal capacity as a result of the phase change mechanism. This thesis work focuses on finite element ... -
Droplet-based microfluidic systems for silica coating and synthesis of conjugated polymer nanoparticles
(Bilkent University, 2015-07)Nanoparticles have unique electronic, optic and magnetic properties due to their large area to volume ratio. In order for them to preserve their properties for longer times, some of them need to be coated with a protective ... -
Mechanical and controller design of a modular mechatronic device - mechacell
(Bilkent University, 2015-08)Since ancient times people have been building tools to aid them in their life. Robots evolved from being purely mechanical to mechatronic, from immobile to mobile and became smaller in scale. As the technology in building ... -
Process modeling for projection based stereo lithography
(Bilkent University, 2015-08)Stereo lithography is a widely used additive manufacturing process, where a three dimensional object is fabricated directly from a solid computer model. This thesis develops a projection type SLA (PSLA) test bed using a ... -
Influence of interface structure on the nanotribological properties of exfoliated graphene
(Bilkent University, 2016-07)On the nano- and micro-scale, conventional liquid-based lubrication cannot be utilized to minimize friction due to excessive surface tension and related effects. To overcome this limitation, solid lubricants suitable for ... -
Development of a vector sensor using piezoelectric support beams
(Bilkent University, 2016-08)Underwater listening has attracted great interest since the twentieth century. Formerly, scalar hydrophones were used to detect sounds underwater by measuring only the pressure changes. These sensors needed to form an ... -
Development of multi-axis laser micromachining system suitable for machining non-linear contoured surfaces
(Bilkent University, 2016-08)In recent years, studies on manufacturing systems have proved the importance of cooperation of positioning systems with laser cutting technology. The performance of the manufacturing system can be improved by utilizing ... -
Design and characterization of a micro mechanical test device
(Bilkent University, 2016-08)Devices with micro- and nano- scale components are becoming more commonplace and demand for better quantification of the properties such as Young's modulus, stiffness, and damping of small-scale components is increasing. ... -
Development of an iterative learning controller for polymer based micro-stereolithography prototyping systems
(Bilkent University, 2016-08)Additive manufacturing systems provide fast and accurate fabrication opportunities for micro-scaled structures. Various methods of processing are used for fabrication of different materials. Stereolithography is an important ... -
Homogenization-based microscopic texture design and optimization in hydrodynamic lubrication
(Bilkent University, 2016-08)The aim of this thesis is to develop an optimization framework for the texture optimization in hydrodynamic lubrication using multi-scale homogenization technique. In hydrodynamic lubrication the asperities do not come ...
