The weight of gears is an important issue for high performance the machine elements. Thus, design gear pairs with respect to minimum and attractive subject study. Various analytical heuristic approaches were utilized optimize in previous studies. In this study, problem optimization as per was solved Grey Wolf Optimizer (GWO). GWO a meta-heuristic method that stands out its successful engineering applications. investigated case constituting spur first time. Compared studies, results obtained...

Stainless steels with unique corrosion resistance are used in applications a wide range of fields, especially the medical, food, and chemical sectors, to maritime nuclear power plants. The low heat conduction coefficient high mechanical properties make workability stainless steel materials difficult cause these be class hard-to-process materials. In this study, suitable cutting tools parameters were determined by Taguchi method taking surface roughness tool wear into milling Custom 450...

This study aims to investigate the mechanical properties of Functionally Graded Lattice Structures (FGLSs) and determine their industrial application possibilities through additive manufacturing. For this purpose, lattice structures with uniform horizontal, vertical radially graded configurations are designed using auxetic unit cells were fabricated RGD720 photopolymer resin Material Jetting. FGLSs compared in regards deformation behavior, structural strength energy absorption. The results...

The need for precise mechanical and tribological properties of the hydrostatic bearings has made them an interesting study topic optimisation studies. In this paper, power-loss minimization problems thrust were solved through Grey Wolf Optimizer (GWO). is a meta-heuristic optimization method standing out with its successful applications in engineering design problems. Power-loss problem was applied on (GWO) first time. results obtained evaluated together previous studies conducted detailed...

Purpose of the study was to evaluate effect complete denture wearing on deglutition time (DT), hyoid bone and larynx movements in edentulous patients with real-time balanced turbo field echo cine-magnetic resonance imaging. Subjects were examined by imaging supine position during swallowing water. Two sets images for 23 (with/without dentures) one dentulous obtained. Radiographic outputs representing three consecutive stages (oral, pharyngeal oesophageal) provided perform measurements....

In this study, the effects of different drill geometries and cutting parameters on drilling performance have been systematically investigated. Using four types drills with geometries, thrust, torque, surface roughness geometric tolerance deviations are measured. Experimental studies tested commercially available two-tool geometry developed original two-channel geometry. The operation was performed GGG 50 material using a 10 mm diameter, two-spindle, helical, solid cementitious carbide...

Bu çalışmada, ticari saflıktaki molibden sementit karbür kesici takım kullanılarak farklı işlem değişkenlerinde frezeleme işlemine tabi tutulmuştur. İşleme esnasında oluşan kesme kuvvetleri ölçülmüştür. Ayrıca, kuvvetlerinin sonlu elemanlar analizi (SEA) belirlenmesi amaçlanmıştır. Sonlu için Deform-3D yazılımı kullanılmıştır. Kesici takım, tersine mühendislik teknikleri ile Geomagic Design X yazılımında modellenmiştir. Farklı değişkenleri ve kuru işleme şartları altında yapılan deneyler...

Digital Human Modeling (DHM) is an integral part of computerized engineering studies. In this study, assembly fixture has been designed that will be used in the helicopter transmission and it analyzed for compliance ergonomic conditions using DHM technique. Rapid Upper Limb Assessment (RULA) Biomechanical Motion Analyses (BMA) were analyses. The competence human was empirically two different conditions. redesigned significant advantages over conventional ones. According to analyses provided...

This paper presents a new methodology for prediction of nonlinear dynamic impact force by experimental and numerical methods.Conventionally in simulations contact or reaction outputs are used loads, however those not valid cases.Therefore, unlike literature, load cell is modelled spring damper elements.In analyses Johnson-Cook material model since it the most suitable impact.To measure different velocities, an setup was built.In setup, adjustable pneumatic piston which as impactor hits fixed...

In this study, the effects of gash rake angle (γ a ), which is an important component drill geometry, on thrust force and drilling torque occurring in ordinary carbon steels (AISI 4140 Ck 45) were examined through experimental FEM-supported numerical simulation studies surface roughness, tool wear diameter deviation values investigated experimentally. experiments, 6.8 mm solid cementite carbide, coated internal cooling channel drills with +10°, 0°, −10° used. Three different feed rates...

Ranque-Hilsch Vortex Tube (RHVT) is a mechanic system which can make heating and cooling by using basic heat transfer laws with compressed fluid. Environmental friendly RHVT widely used in systems medicine, electronics, computer sectors, particularly the food sector. In this study, performances of parallel RHVTs oxygen (O2) gas were reviewed considering different inlet pressures, nozzle materials orifice numbers. Test results modeled multiple linear regression method equation was derived....

Endüstriyel gelişmelerin ışığında, üretilen parçaların hafif, dayanıklı, fonksiyonel ve ergonomik gibi özelliklerindeki artan istekler, üretim teknolojilerinde tasarım yaklaşımlarında farklılaşma zorunluluğu oluşturmuştur. Eklemeli imalat teknolojisi eklemeli imalata uygun yaklaşımları, bu farklılığın önemli çıktıları olarak görülmektedir. teknolojileri gereklilikleri karşılamak için ideal bir seçenek karşımızdadır. Bu çalışmada, yaklaşımlarından biri olan kafes hücre yaklaşımı ele...

Gears are undoubtedly the most important parts of motion transmission. One way to increase performance system is reduce weights gears without sacrificing strength capability. Today, various optimization techniques that rely heavily on analytical and heuristic approaches used for this problem. In study, gear problem in accordance with minimum weight was solved Grasshopper Optimization Algorithm (GOA). Introduced recent years, GOA a meta-heuristic technique stands out its successful...

Pirinç temelde bir bakır çinko alaşımıdır. Çinko, pirincin mukavemetini arttırarak ona sertlik ve aşınma direnci katar. Pirinç, üretilmesi kolay şekillendirilebilme kabiliyeti yüksek alaşımdır. Bu nedenle birçok sektörde yaygın uzun soluklu kullanım imkânı bulmuştur. Matkapla delik delme basit yapısı ekonomikliği ile halen olarak kullanılan imalat yöntemlerinden biridir. çalışmada, CuZn15 pirinç alaşımı dört kontrol faktörü (kesme hızı, ilerleme miktarı, matkap uç açısı kaplama durumu)...