Güncel Gönderiler: Makine Mühendisliği Bölümü
Toplam kayıt 136, listelenen: 21-40
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Kafes yapı dolgulu hibrit tüplerin enerji sönümleme performanslarının sonlu elemanlar yöntemi kullanılarak incelenmesi
(2019)İnce cidarlı tüplerin enerji sönümleme performanslarının iyileştirmesine yönelik literatürde birçok farklı yaklaşım önerilmiştir. Bu bağlamda farklı tipte malzemeler, kesit geometrileri, desenler vb. önerilmiş ve bu yapıların ... -
Yönlendirilmiş enerji bırakımlı eklemeli imalat süreçlerinde meydana gelen metalurjik faz dönüşümlerinin sonlu elemanlar yöntemi kullanılarak benzetilmesi
(2019)Son yıllarda popülerlik kazanmış olan eklemeli imalat teknolojileri kullanılarak önceden imalatı veya tamiri oldukça zor veya imkânsız olan yapısal parçalar metalik, seramik, polimer ve karma malzemeler kullanılarak imal ... -
Energy absorption of thin-walled tubes enhanced by lattice structures
(Elsevier, 2019)Thin-walled structures filled or covered by various materials have been proposed for energy absorption applications in recent years. At this point, additive manufacturing technologies provide an unprecedented opportunity ... -
Experimental investigation of cooling performance a heat pump for near azeotropic refrigerant R404A
(Hitit University, 2017)In this study, in order to investigate the effect of outdoor air temperatures on the performance of an air source heat pump, operated in cooling mode, using R404A refrigerant, the heat pump was tested at the outdoor air ... -
Analysis of scoring resistance on coated spur gears by considering surface roughness
(Hitit University, 2017)With the rise of velocity and momentum in machines as a result of technological developments, on gears, alongside refraction from the bottom of the gears and pitting formation, and scoring formation has showed up. In the ... -
Comparative thermodynamic assessment of various super- and trans-critical working fluids for low temperature power generation applications
(Gazi Üniversitesi, 2017)Recently, energy need is exponentially increasing in the world while energy sources are decreasing rapidly. Therefore, this issue requires energy sources to be used more efficiently and urges professionals to utilize energy ... -
A monitoring and control system integrated with smart phones for the efficient use of underground water resources in agricultural product growing
(Hitit University, 2017)Monitoring and control system is very important for crop development process in agriculture zones. A structure which is carried out based on the type of the product with the knowledge of temperature and humidity values of ... -
Elektro-erozyon ile işlemede işleme haznesine uygulanan titreşimlerin işleme performansına etkilerinin incelenmesi
(2011)Bu çalısmada, elektro-erozyon ile islemede (EEİ), isleme kosullarında isleme haznesine uygulanan titresimlerin performans çıktıları (isparçası isleme hızı, elektrot asınma hızı, bağıl asınma ve isparçası yüzey pürüzlülüğü) ... -
Farklı soğutucular kullanarak CPU'nun ısı boruları ile soğutulması
(Türk Isı Bilimi Ve Tekniği Derneği, 2009)Bu çalışma, bilgisayarların soğutulmasında ısı borularının etkin kullanılması ile ilgili yapılan teorik bir çalışmadır. Soğutucu akışkan ısı kaynağından (Central Processing Unit – CPU’dan) ısıyı absorbe eder. Evaporatörde ... -
Heat transfer characteristics of longitudinal perforated and unperforated ribs under impingement jets
(American Society of Mechanical Engineers (ASME), 2014)Impingement heat transfer is considered as heat transfer enhancement technique. Impinging jets are used in many applications where high heat transfer rates are required. An experimental study was conducted to investigate ... -
Investigation of the effect of temperature on the mechanical properties of E-Glass fiber reinforced composites
(The Composites and Advanced Materials Expo (CAMX), 2014)In this study, mechanical characterization of E-Glass fiber reinforced composite materials that are manufactured via Vacuum Infusion (VI) (a.k.a Vacuum Assisted Resin Transfer Molding (VARTM)) is investigated. The mechanical ... -
Performance investigation of an eight cylinder gasoline engine
(American Society of Mechanical Engineers (ASME), 2014)Performance investigation of a Chevrolet 5.7, eight cylinder gasoline engine is experimentally carried out at laboratuary conditions by means of the special softwares called "NetDyn" and "WinDyn". This experimental work ... -
Low velocity impact response of glass fiber reinforced aluminium foam sandwich
(European Conference on Composite Materials, ECCM, 2012)The aim of this study was the analysis of the bending and the low - velocity impact response of aluminium foam sandwich reinforced by the outer skins made of glass fiber reinforced epoxy matrix and the results were compared ... -
Investigation of irreversibilities in the compression process for alternative refrigerants in a vapor compression refrigeration cycle
(2008)Irreversibility analyses during compression process are presented for some refrigerants namely, R290, R134a, R12, R22, and R152a in a vapor compression refrigeration cycle. The effects of evaporator temperature, condenser ... -
Design of sma based actuators used in robotics
(2013)This work introduces to Shape Memory Alloy (SMA) using in Robotics as actuators. We investigated a quadruped platform actuated by SMAs which act with variable elasticity. SMAs ought to prove necessary forces for all gaits. ... -
Investigation of experimental research on the low velocity impact damage behavior of NCF composite plates - Complas XII
(2013)In this study an experimental investigation is performed on the impact response of non-crimp fabric composite plates at room temperature. Chopped strand mat combi is used as reinforcing material and two kinds of matrix; ... -
Elastoplastic stress analysis of functionally graded disc under internal pressure-complas XII
(2013)The study deals with elastoplastic stress analysis of a hollow disk made of functionally graded materials (FGMs) subjected to an internal pressure. The material properties of disc are assumed to vary radially according to ... -
Determination of noise level of a gas-fired pulse combustor
(2007)Experimental determination of noise level of a Helmholtz type gas-fired pulse combustor is presented. During the tests, the tail pipe length was varied from 1.9 m to 1.3 m by 10 cm intervals. Noise level measurements were ... -
Monitoring and control of PLC based motion control systems via device-net
(Institute of Electrical and Electronics Engineers Inc., 2014)The control of mechanical systems are generally applied by using electric motors which are useful for the control of velocity, position and torque. On the other hand, servo motors are preferred due to their characteristic ... -
Irreversibility analysis of a vapor compression cascade refrigeration cycle
(2009)Hydrocarbon based energy sources such as coal, oil and natural gas have been diminishing in an increasing speed. Instead of finding alternative energy sources, we have to use the available sources more effectively. By means ...
