Journal of applied mechanical engineering最新文献_第10页

Study of Forces Acting on Excavator Bucket While Digging 挖掘机挖斗受力研究

Journal of applied mechanical engineering Pub Date : 2017-01-01 DOI: 10.4172/2168-9873.1000282

Y. Khedkar, T. Dey, Y. Padasalagi

引用次数: 6

An Overview of the Main Topics and Applications of Graph Theoretic Problems in Multiphysics Engineering 图论问题在多物理场工程中的主要议题及应用综述

Journal of applied mechanical engineering Pub Date : 2017-01-01 DOI: 10.4172/2168-9873.1000284

M. Garziad, A. Saka

引用次数: 0

Research on Forming and Polishing Technology Based on Belt Flap Wheel 基于带瓣轮的成形与抛光技术研究

Journal of applied mechanical engineering Pub Date : 2017-01-01 DOI: 10.4172/2168-9873.1000294

S. Xing-wei, G. Qin-yuan, Y. Heran, Z. Zheng-qing

引用次数: 1

Numerical Modeling of Flow over an Ogee Crested Spillway under Radial Gate: VOF and MMF Model 径向闸门下Ogee波峰溢洪道流动数值模拟:VOF和MMF模型

Journal of applied mechanical engineering Pub Date : 2017-01-01 DOI: 10.4172/2168-9873.1000287

Tapobrata Dey, S. Joshi

{"title":"Numerical Modeling of Flow over an Ogee Crested Spillway under Radial Gate: VOF and MMF Model","authors":"Tapobrata Dey, S. Joshi","doi":"10.4172/2168-9873.1000287","DOIUrl":"https://doi.org/10.4172/2168-9873.1000287","url":null,"abstract":"The present research work shows the simulation of the gated flow over an ogee crested spillway for one of water reservoir. The average velocities and Froude Number analysis at various gate openings gives a better insight of flow behavior. Also, the simulations were carried out by changing the gate bottom shape. The STAR CCM+ CFD tool is used to solve the fluid flow performance. The flow parameters near the bottom of the gate have been studied with two types of fluid flow models i.e. Volume of Fluid (VOF) and Multi-Mixture Fluid Models. The use of Volume of Fluid (VOF) multiphase model together with RNG k-e turbulence for the simulation, gives the excellent agreement between the experimental and numerical data. The spillway performance of the gated flow at various gate openings resembles with the actual flow behavior. The applicability of the CFD model to simulate the gated flow over ogee crested spillway is reviewed. The computational model study showed that CFD can be useful in hydraulics structures for designing of various reservoirs. This numerical model gives significant advantage in practice, in terms of parametric studies","PeriodicalId":90573,"journal":{"name":"Journal of applied mechanical engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4172/2168-9873.1000287","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70869202","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Exergy Analysis for Brayton and Inverse Brayton Cycles with Steam Injection 注汽布雷顿循环和反布雷顿循环的火用分析

Journal of applied mechanical engineering Pub Date : 2017-01-01 DOI: 10.4172/2168-9873.1000292

B. Eh, S. Farhat, B. Agnew

{"title":"Exergy Analysis for Brayton and Inverse Brayton Cycles with Steam Injection","authors":"B. Eh, S. Farhat, B. Agnew","doi":"10.4172/2168-9873.1000292","DOIUrl":"https://doi.org/10.4172/2168-9873.1000292","url":null,"abstract":"Global economic and social development has led to the growth in demand for electrical power. Gas turbines play an essential role in many societies, and as the requirements for power generation increase, the power output and thermal efficiency of gas turbines must also increase. This paper presents one of the ways to improve the performance of the gas turbine with a study of exergy analysis of combined Brayton and inverse Brayton cycles with steam injected into the combustion chamber. The effect of variation of operating conditions (compression ratio and ambient temperature) on the performance of gas turbine (thermal efficiency, power) were investigated, the results were compared with the same cycle, but without injection with the analytical formulae of exergy and exergy destruction. The programming of performance model for gas turbine was developed utilizing the commercially available software IPSEpro. The analysis shows that the highest exergy destruction occurs in the combustion chamber. In addition, the performance has been improved by using steam injection by 11% in efficiency and 57% in power output and decrease linearly with the increase of the ambient temperature. However, steam injection increases the specific fuel consumption and heat rate. Thus, the thermodynamic parameters on cycle performance are economically feasible and beneficial for the gas turbine operations.","PeriodicalId":90573,"journal":{"name":"Journal of applied mechanical engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4172/2168-9873.1000292","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70869361","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Analysis of Strength Hydraulic Concrete Produced with a Mixture ofCrushed Gneiss and Alluvial Sand 片麻岩碎石与冲积砂混合配制水工混凝土强度分析

Journal of applied mechanical engineering Pub Date : 2017-01-01 DOI: 10.4172/2168-9873.1000289

Mambou Ngueyep Luc Leroy, Tchapga Gniamsi Guy Molay, Ndop Joseph, Ndjaka Jean Marie bienvenu

引用次数: 4

Transmission for a Hybrid 混合动力变速器

Journal of applied mechanical engineering Pub Date : 2017-01-01 DOI: 10.4172/2168-9873.1000285

Khadeev Rg

引用次数: 0

Analysis of Wire Electrode Discharge Machining Process using FEA 利用有限元分析方法对线材电极放电加工过程进行了分析

Journal of applied mechanical engineering Pub Date : 2017-01-01 DOI: 10.4172/2168-9873.1000288

P. Singh, J. Ak, M. Sk

{"title":"Analysis of Wire Electrode Discharge Machining Process using FEA","authors":"P. Singh, J. Ak, M. Sk","doi":"10.4172/2168-9873.1000288","DOIUrl":"https://doi.org/10.4172/2168-9873.1000288","url":null,"abstract":"The Wire Electro Discharge Machining (WEDM) process is a violent thermal process where literally thousands of electrical discharges are produced in a fraction of a single second in order to erode a certain volume of metal workpiece. The process is mostly and efficiently used in situations where intricate complex shapes need to be machined in very hard materials (such as hardened tool steel, CBN, Ceramic etc). However, the process generates surfaces that have poor properties such as high tensile residual stresses, high surface roughness, presence of micro-cracks and microvoids. These properties vary with different levels of the main conventional machining parameters. The aim of this FEA simulation is to present a transient thermal and structural simulation work that has been a three-dimensional finite element model with two new materials to predict the temperature distribution, Total heat flux at different pulses of time as well as stress distribution in WEDM wire electrode. Thermal stress developed after the end of the spark and structural stresses developed due to tension in wire electrode. The effect on significant machining parameter pulseon- time has been investigated and found that the peak temperature is sharply increases with the parameters. Wire electrical discharge machining process is a mostly used non-conventional material removal processes.","PeriodicalId":90573,"journal":{"name":"Journal of applied mechanical engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4172/2168-9873.1000288","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70869276","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Design and Performance Analysis of a CD Nozzle for Evacuating Emissions from the Subway Tunnels 用于地铁隧道排放物疏散的CD喷管设计与性能分析

Journal of applied mechanical engineering Pub Date : 2017-01-01 DOI: 10.4172/2168-9873.1000293

C. Nallode, C. Rakesh, J. Ahmed, Ganesha Prasad Ms

{"title":"Design and Performance Analysis of a CD Nozzle for Evacuating Emissions from the Subway Tunnels","authors":"C. Nallode, C. Rakesh, J. Ahmed, Ganesha Prasad Ms","doi":"10.4172/2168-9873.1000293","DOIUrl":"https://doi.org/10.4172/2168-9873.1000293","url":null,"abstract":"Tunnels have very severe air quality constraints that typically require good ventilation system. The process of removing air from any space by mechanical means is known as evacuation. Evacuation of exhaust and smoke in case of fire emergencies is very necessary to bring in fresh air as it leads to pressure and temperature build up which causes discomfort to the passengers travelling especially in long tunnels. Generally, in longitudinal ventilation, a jet blower fan enclosed in a cylindrical casing is used for ventilation. These jet fans accelerate the air by imparting it an impulse in the desired direction. The main aim is to optimize the design and replace the jet blower fan cylindrical enclosure by a CD Nozzle. The suction fan along with rotor is exactly placed at the throat of the nozzle. The modeling is done using CATIA V5 software and CFD flow and modal analysis is carried out using ANSYS V 15.0. Various parameters like pressure, temperature, density, humidity and mass flow rate of air are measured and compared with the conventional model by experimentation and the results are validated.","PeriodicalId":90573,"journal":{"name":"Journal of applied mechanical engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4172/2168-9873.1000293","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70869552","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Analytical and Numerical Simulation of Dynamic Indentation for Different Indenter Shapes 不同压头形状动态压痕的分析与数值模拟

Journal of applied mechanical engineering Pub Date : 2017-01-01 DOI: 10.4172/2168-9873.1000286

Almasri Ah, Safa a Olimat, M. Alzubi

引用次数: 2