Mechanical Engineering
Recent Submissions
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A high-torque density compliant actuator design for physical robot environment interaction
(IEEE, 2020)Compared to the traditional industrial robots that use rigid actuators, the advanced robotic systems are mobile and physically interact with unknown and dynamic environments. Therefore, they need intrinsically safe and ... -
Numerical analysis of solar radiation effects at indoors with internal partitions and external solar shades
(International Solar Energy Society, 2020)A numerical study is conducted to couple natural convection in an office space with thermal radiation due to solar radiation. The study specifically investigates the effect of partitions located between desks of the office ... -
Computational and experimental investigation of vibration characteristics of variable unit-cell gyroid structures
(International Center for Numerical Methods in Engineering, 2019)Triply periodic minimal surface (TPMS) based geometries exhibit extraordinary mechanical, thermal, electrical and acoustic properties thanks to their unique topologies. There are various types of structures in the TPMS ... -
The effect of interface gradient distribution on unrealistic flow in 3D droplet simulations
(Europe, Institute for Liquid Atomization and Spray Systems, ILASS, 2021-08-31)The purpose of this study is to investigate the origin of the parasitic current to provide accurate prediction of droplet surface interactions in Volume of Fluid (VOF) framework. The deformation of the droplet due to ... -
Validation and comparison of 2D and 3D numerical simulations of flow in simplex nozzles
(Europe, Institute for Liquid Atomization and Spray Systems, ILASS, 2021-08-31)Numerical simulations of pressure swirl atomizers are computationally expensive due to transient and multiphase flow behavior. In this study, 2D and 3D VOF simulations are performed for a geomerty which has high swirl ... -
Design and development of a torsion-based series elastic actuator with nested encoders for a wearable exoskeleton robot
(IEEE, 2022)This paper presents the design of a high torque-to-mass ratio series elastic actuator (SEA) for wearable powered exoskeletons. Nonbackdrivable actuators are ideal for applications that require high torque. Commonly, active ... -
Topology optimization-based design and development of a compact actuator with a high torque-to-weight ratio for quadrupeds
(IEEE, 2022)This paper presents the design, development, and testing procedures for a compact actuator with a high torque-to-weight ratio, generally aimed to actuate legged robots, e.g., quadrupeds. The main goal of designing the ... -
Automated flow rate control of extrusion for 3D concrete printing incorporating rheological parameters
(Elsevier, 2024-04)The use of inline quality assessment technologies is of great importance in meeting the consistent extrusion requirements of 3D concrete printing (3DCP) applications. This paper presents a system to regulate extrusion speed ... -
Microstructural examination of black seawater mixed sulfate-resistant cement concrete
(ASCE, 2024-01-01)The use of seawater as the mix water has been thought to be inevitable for the near future as a result of increasing water scarcity. Hundreds of papers related to seawater mixed cement-based materials were published in ... -
Numerical analysis and diffuser vane shape optimization of a radial compressor with the open-source software su2
(Turk Isi Bilimi ve Teknigi Dernegi, 2023)In recent years, the usage of open-source computational fluid dynamics tools is on a rise both in industry and academia. SU2 is one of these open-source tools. Unlike other open-source alternatives, SU2 is equipped with ... -
Reducing charging costs for electric vehicles with bi-directional charging
(IEEE, 2023)Electric vehicles (EVs) have gained popularity as eco-friendly and energy-efficient modes of transportation. How-ever, the high cost of charging infrastructure remains a significant barrier to the widespread adoption of ... -
Growth of NGVs and comparative study of cylinder material for CNG storage
(Springer, 2023)In the present paper, the growth of Natural Gas Vehicles (NGVs) and the various pressure vessels used for storing compressed natural gas (CNG) is discussed.Also, the comparison of Von-mises stress in pressure vessels (PVs) ... -
Numerical study of the intensification of single-phase heat transfer in a sandwich-like channel using staggered miniature-pin fins
(Taylor & Francis, 2023-04)This study presents the numerical analysis of single-phase forced convection heat transfer and pressure drop during internal flow in a shallow, rectangular sandwich-like copper channel heated from both the top and the ... -
Impact of oxidation on pool boiling heat transfer performance over flat plates exposed to extended operating conditions
(IEEE, 2023)Phase change heat transfer is utilized in a number of high heat flux applications. In order to ensure reliable functionality at moderate temperatures, one has to guarantee a stable long-term operation. In this experimental ... -
Saturated and superheated water vapor condensation on a custom micro-textured surface
(IEEE, 2023)Condensation has a great importance for a large number of technologies such as heat exchangers, distillation columns, heat pipes, and thermal management systems. Vapor changes its phase into liquid when it contacts a surface ... -
Direct numerical simulation of synthetic jet coupled to forced convection cooling in a channel flow
(IEEE, 2023)A synthetic jet (SJ) is a microfluidic device that uses the 'zero-net-mass-flux' concept to create a compact cooling solution and provide a net positive momentum flux to the local environment. SJs have been studied extensively ... -
A Monte Carlo random walk-based methodology for calculation of sensitivity coefficients in inverse radiant boundary design problem
(Begell House Inc., 2023)This study presents a methodology for the solution of inverse boundary design problems involving transient heat conduction in solid objects imposed by radiant boundary condition. The inverse solution aims to find the ... -
Investigation of soot formation of ethylene/air jet diffusion flame with rank correlated slw including ethylene and acetylene radiation
(Begell House Inc., 2023)Radiation is significant, especially in sooting flames. The interaction between radiation and soot considerably affects the combustion regime. Spectral radiation models that account for the radiative effects of sooting ... -
Üretim parametrelerinin, lazer toz yatağı füzyon yöntemi ile üretilen kafes yapıların çarpılma, boyutsal değişim ve yüzey pürüzlülüğü üzerindeki etkisi
(Gazi Üniversitesi, 2023)Yüksek ısı transfer kabiliyeti, enerji absorbe edebilme ve ses izolasyonu özelliklerinden dolayı kafes yapılar havacılık, otomotiv ve biyomedikal sanayii başta olmak üzere birçok alanda kullanılmaktadır. Kafes yapıların ... -
A new sensitivity-based mapping scheme for topology optimization of graded TPMS designs
(Springer, 2023-12)Graded TPMS topologies display excellent mechanical and thermal properties. Design schemes targeting optimal performance exist, but final reconstructed designs still suffer from performance degradation. To overcome this ...
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