Browsing Theses - Department of Mechanical Engineering by Title
Now showing items 1-20 of 81
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Adaptive control of cyberphysical human systems
(Bilkent University, 2021-08)This dissertation focuses on the control of cyberphysical human systems in the presence of actuators’ redundancy and constraints. A novel adaptive control tech-nique is proposed to allocate control signals among redundant ... -
Bow tie shaped coplanar waveguide microwave resonators for single cell detection, flow rate measurements, and nanopore sensing of viruses
(Bilkent University, 2020-09)Measurement sensitivity of different biosensing applications can be enhanced by using the microwave resonators. In the first application, microwave sensors based on bow tie shaped coplanar waveguide (CPW) resonator was ... -
Collision resilient foldable micro aerial robot
(Bilkent University, 2019-09)Collision management strategies are integral part of micro air vehicles for the reliability of their operation. Collision avoidance strategies require enhanced environmental and situational awareness for generating evasive ... -
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, ... -
A control allocation technique to recover from driver-induced oscillations
(Bilkent University, 2019-12)The focus of this thesis is the study of driver induced oscillations. When the rear tires of a car are force saturated due to aggressive driver behaviour, high velocity on a slippery road, sudden steering action or heavy ... -
DC-electrokinetic motion of colloidal cylinder(s) in the vicinity of a wall
(Bilkent University, 2021-07)DC-electrokinetic behavior of colloidal particles in the vicinity of a conducting/non-conducting planar boundary is investigated using an inhouse boundary element method (BEM) based solver in MATLAB R environment. In ... -
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. ... -
Design and fabrication of micro end mills for the machining of difficult-to-cut materials
(Bilkent University, 2016-08)Micromilling is a cost-e ective method of fabricating miniaturized components with complex, three-dimensional features made from di cult-to-cut materials. Microcutting tools are exposed to harsh conditions during machining ... -
Design of a droplet based microfluidic reactor to synthesize chitosan coated iron oxide nanoparticles
(Bilkent University, 2019-06)Nanoparticles possess unique structural, mechanical, thermal, optical and chemical properties which are highly dependent on their size; therefore it is important to be able to synthesize them uniformly. In general they ... -
Design of a droplet-based microfluidic system for hybrid polymer nanoparticle synthesis
(Bilkent University, 2021-12)Droplet microfluidics is advantageous in synthesizing microparticles for both confining their size to the physical dimensions of the droplet and providing a monodisperse result due to rapid mixing inside the droplets. ... -
Design, control, fabrication and maneuverability analysis of an untethered miniature soft robot
(Bilkent University, 2019-09)As the robotics field grows, it searches for new potential workspaces to be interacting with. The conventional robotics, which involves utilization of robots made out of hard materials like metals and hard plastics, has ... -
Design, control, modeling, and gait analysis in miniature foldable robotics
(Bilkent University, 2018-09)Miniature or micro robotic platforms are perfect candidates for accomplishing tasks such as inspection, surveillance, and hazardous environment exploration where conventional macro robots fail to serve. Such applications ... -
Design, control, modeling, and locomotion analysis of a multi-legged modular miniature robot with soft backbones
(Bilkent University, 2020-07)Soft Modular Legged roBot (SMoLBot) is a legged, foldable, modular, miniature robot with soft backbones. SMoLBot’s body and locomotion mechanisms are folded out of acetate sheets and its compliant connection mechanisms are ... -
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 ... -
Design, fabrication, and applications of electrostatically buckled nanomechanical systems
(Bilkent University, 2018-08)Buckling is an important resource for memory and sensing applications at the micro- and nano-scale. Although di erent approaches have been developed to access buckling, such as the use of pre-stressed beams or thermal ... -
Design, fabrication, and applications of multi-mode nanoelectromechanical systems
(Bilkent University, 2017-07)Miniaturization of systems allowed wide spread consumer use of microelectronics, integrated circuits and MEMS based sensors. Thanks to the advancement in microfabrication methods, it is possible to build structures with ... -
Design, fabrication, and locomotion analysis of an untethered, miniature, legged, compressible, soft robot: CSQUAD
(Bilkent University, 2021-09)Conventional robotics has been effective for industrial applications such as fast, precise and accurate production or for sophisticatedly controlled systems for the last couple of centuries. However, as the robots become ... -
Design, manufacturing, and rough terrain analysis of a collision resilient foldable, adjustable wheeled miniature robot: FAWSCY
(Bilkent University, 2021-01)FAWSCY: Foldable Adjustable Wheeled Stringy Clumsy Robot is a foldable, collision resilient, adjustable wheeled robot which can run through different ter-rains and inclined surfaces, to inspect areas which are unavailable ... -
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 ... -
Development of a non-ordinary state-based peridynamics solver
(Bilkent University, 2019-09)Damage prediction is crucial in the design process of engineering structures to ensure structural integrity. The limitations of empirical methods and the high costs associated with experimental analyses have prompted the ...
