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Journal of applied mechanical engineering最新文献

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Prediction of Surface Roughness from Cutting Tool Vibrations in Hard Turning of AISI D2 Steel of Different Hardness with Conventional and Wiper Geometry CBN Inserts 基于刀具振动的不同硬度AISI D2钢硬车削表面粗糙度预测
Journal of applied mechanical engineering Pub Date : 2018-02-04 DOI: 10.4172/2168-9873.1000300
Sarnobat Ss, Raval Hk
{"title":"Prediction of Surface Roughness from Cutting Tool Vibrations in Hard Turning of AISI D2 Steel of Different Hardness with Conventional and Wiper Geometry CBN Inserts","authors":"Sarnobat Ss, Raval Hk","doi":"10.4172/2168-9873.1000300","DOIUrl":"https://doi.org/10.4172/2168-9873.1000300","url":null,"abstract":"The quality of machined surface is of vital significance due to its bearing of the in-service functionality of the component. In-service functionality of the machined parts like, tribological performance, fatigue life of the component etc.; are greatly dependent on the surface profile characteristic and the surface roughness generated after machining. However, the quality of surface is reliant on complexities of the numerous process parameters. The mechanics of metal cutting necessarily results into the dynamic instability of the process consequentially ensuing into cutting tool vibrations. Previous research indicates an association between the cutting tool vibrations and surface roughness. In this study the cutting tool vibrations in tangential and axial direction have been integrated with the input parameters; cutting speed, feed rate, depth of cut, work material hardness and tool edge geometry to develop prediction models for surface roughness from the experimentally obtained data by using Regression Analysis and artificial Neural Network methodologies. The results of the regression models and neural networks model are compared. A good agreement between the experimental and predicted values for both the models is seen, however neural networks approach outclasses regression analysis by a reasonable margin. Further it is also noted that the quality of surface is markedly influenced by the tool edge geometry and feed rate.","PeriodicalId":90573,"journal":{"name":"Journal of applied mechanical engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42916161","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: 1
Slip Flow in Porous Medium of Micropolar Fluid in a Rectangular Microchannel under the Effect of a Magnetic Field 磁场作用下矩形微通道中微孔流体在多孔介质中的滑移流动
Journal of applied mechanical engineering Pub Date : 2018-01-14 DOI: 10.4172/2168-9873.1000298
A. B.M.
{"title":"Slip Flow in Porous Medium of Micropolar Fluid in a Rectangular Microchannel under the Effect of a Magnetic Field","authors":"A. B.M.","doi":"10.4172/2168-9873.1000298","DOIUrl":"https://doi.org/10.4172/2168-9873.1000298","url":null,"abstract":"The magnetohydrodynamic flow of micropolar fluid through porous medium inside the rectangular microchannel is investigated. The flow is subjected to a uniform magnetic field. This phenomenon is modulated mathematically by a system of linear differential equations which describe the continuity, momentum and angular momentum equations of the considered fluid. The system of differential equations has been solved analytically. We have obtained the velocity and microrotation vectors in terms of a Fourier series. The volumetric flow rate is calculated and the effect of various parameters like medium permeability, magnetic field, the Knudsen number, the microrotation parameter and coupling parameter are discussed and illustrated graphically through a set of figures.","PeriodicalId":90573,"journal":{"name":"Journal of applied mechanical engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47806560","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: 4
Modeling and Experimental Study on the Design of Separators for Water/Oil Separations using Electric Fields 电场水/油分离分离器设计的建模与实验研究
Journal of applied mechanical engineering Pub Date : 2018-01-01 DOI: 10.4172/2168-9873.1000313
Hak Seung Lee, Chaolun Zheng, Bao Yang
{"title":"Modeling and Experimental Study on the Design of Separators for Water/Oil Separations using Electric Fields","authors":"Hak Seung Lee, Chaolun Zheng, Bao Yang","doi":"10.4172/2168-9873.1000313","DOIUrl":"https://doi.org/10.4172/2168-9873.1000313","url":null,"abstract":"","PeriodicalId":90573,"journal":{"name":"Journal of applied mechanical engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4172/2168-9873.1000313","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70869599","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: 1
Dynamic Response Bound Estimation of Structures with Interval Parameters 区间参数结构的动态响应界估计
Journal of applied mechanical engineering Pub Date : 2018-01-01 DOI: 10.4172/2168-9873.1000306
Janaina Cv Albuquerque, J. J. L. Junior
{"title":"Dynamic Response Bound Estimation of Structures with Interval Parameters","authors":"Janaina Cv Albuquerque, J. J. L. Junior","doi":"10.4172/2168-9873.1000306","DOIUrl":"https://doi.org/10.4172/2168-9873.1000306","url":null,"abstract":"This study aims to evaluate the result of mechanical vibration problems in presence of an interval of values for parameters such as mass, length, modulus of elasticity, moment of inertia. A possibility and computationally efficient method is proposed to obtain the limits of natural frequency of systems with interval parameters. The interval eigenvalue problem is formulated by the Finite Element Method (FEM) which stiffness and mass matrices are submitted to disturbance by Perturbation Theory of Matrices (PTM). At each stage of the analysis, the existence of uncertainty in matrix formulation is considered as the presence of disorder in a pseudo-deterministic system capable of providing technically reliable and efficient results. Numerical results are presented using a tool developed by the author in MATLAB ®. This program works with dynamic structures with interval uncertainty. The numerical results are compared with the literature and with a Monte Carlo simulation. Experimental tests were conducted to validate the results of the proposed method.","PeriodicalId":90573,"journal":{"name":"Journal of applied mechanical engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70869726","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: 1
The Analysis of Electromagnetic Radiation at Destruction of Structural Materials 电磁辐射对结构材料破坏的分析
Journal of applied mechanical engineering Pub Date : 2018-01-01 DOI: 10.4172/2168-9873.1000305
Borisov Vd
{"title":"The Analysis of Electromagnetic Radiation at Destruction of Structural Materials","authors":"Borisov Vd","doi":"10.4172/2168-9873.1000305","DOIUrl":"https://doi.org/10.4172/2168-9873.1000305","url":null,"abstract":"The processes occurring in the structural material under load, leading to the formation of electromagnetic radiation, are briefly considered. It is shown that there is a relationship between the duration of the anterior front of the electromagnetic radiation pulse and the length of the crack responsible for the formation of this pulse. The task of the analysis of electromagnetic radiation signals is to establish quantitative relations between the parameters of the signal and the parameters of the crack responsible for the formation of this signal. The development of the method of spectral–temporal analysis in this application is briefly described. The application of the fractal analysis method for qualitative estimation of the fracture surface size is considered, as well as the relations are introduced: frequency of the spectral component–characteristic size of the crack (length), amplitude of the spectral component – the number of cracks. On the basis of the model, which combines the principles of both linear and nonlinear mathematical physics, the transition to the quantitative evaluation of crack parameters by electromagnetic radiation signals is performed. The phenomenon called \"High-Frequency Trace\", the main property of which is inversely proportional, almost linear dependence of the number of cracks on their size, was found. Some parts of these dependencies have logarithmic scale invariance.","PeriodicalId":90573,"journal":{"name":"Journal of applied mechanical engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70869640","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
Effect of Flow Rate on Performance of Solar Adsorption Chiller Keeping Fixed Evaporator Outlet Temperature 流量对固定蒸发器出口温度太阳能吸附式制冷机性能的影响
Journal of applied mechanical engineering Pub Date : 2018-01-01 DOI: 10.4172/2168-9873.1000310
F. Begum, Khan Mzi, R. A. Rouf, Alam Kca
{"title":"Effect of Flow Rate on Performance of Solar Adsorption Chiller Keeping Fixed Evaporator Outlet Temperature","authors":"F. Begum, Khan Mzi, R. A. Rouf, Alam Kca","doi":"10.4172/2168-9873.1000310","DOIUrl":"https://doi.org/10.4172/2168-9873.1000310","url":null,"abstract":"A two bed basic adsorption chiller run by solar heat is investigated to get a fixed chilled water outlet temperature. Generally, a solar heat driven adsorption chiller, being activated with intermittent heat source, cannot produce uniform cooling. In this context, it is found that the flow rate of inlet chilled water can help to keep the evaporator outlet temperature constant. The performance of the chiller is also observed at day time for the climate condition of Dhaka, Bangladesh. Silica gel and water is considered as the working pair in the present study. The results show that 1100sec cycle time along with 38.64m2 collector area gives better performance with fixed chilled water outlet temperature (7°C).","PeriodicalId":90573,"journal":{"name":"Journal of applied mechanical engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4172/2168-9873.1000310","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70869975","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: 4
SEPARATIONS OF WATER-IN-OIL EMULSIONS BY ELECTROSTATIC FIELD AT THE ELEVATED TEMPERATURE 高温下静电场分离油包水乳剂的研究
Journal of applied mechanical engineering Pub Date : 2018-01-01 DOI: 10.4172/2168-9873.1000312
Hak Seung Lee, Chaolun Zheng, Bao Yang
{"title":"SEPARATIONS OF WATER-IN-OIL EMULSIONS BY ELECTROSTATIC FIELD AT THE ELEVATED TEMPERATURE","authors":"Hak Seung Lee, Chaolun Zheng, Bao Yang","doi":"10.4172/2168-9873.1000312","DOIUrl":"https://doi.org/10.4172/2168-9873.1000312","url":null,"abstract":"","PeriodicalId":90573,"journal":{"name":"Journal of applied mechanical engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4172/2168-9873.1000312","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70869597","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: 5
A Review on Porous EDM Electrodes 多孔电火花加工电极研究进展
Journal of applied mechanical engineering Pub Date : 2018-01-01 DOI: 10.4172/2168-9873.1000304
Hitesh Sharma
{"title":"A Review on Porous EDM Electrodes","authors":"Hitesh Sharma","doi":"10.4172/2168-9873.1000304","DOIUrl":"https://doi.org/10.4172/2168-9873.1000304","url":null,"abstract":"In the past years many researchers have done various advancements in material removal rate, wear of electrode is improved and various researches had done on physical and electrical parameters of EDM machine. This new research contributes the similar objectives to enhance the material removal rate and to increase the life of electrode by reducing the wear rate of electrode. So this paper review the past research work done on porous electrodes to improve the life of electrode and to reduce the lift up time of electrode to flush debris and various work on porous electrodes to reduce lift up time.","PeriodicalId":90573,"journal":{"name":"Journal of applied mechanical engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4172/2168-9873.1000304","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70869617","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: 1
Heat Transfer over a Stretching Surface with Variable Thickness Embedded in Porous Medium in the Presence of Maxwell Fluid 麦克斯韦流体存在下多孔介质中变厚度拉伸表面的传热
Journal of applied mechanical engineering Pub Date : 2018-01-01 DOI: 10.4172/2168-9873.1000307
E. Elbashbeshy, H. G. Asker, K. M. Abdelgaberc, E. Sayed
{"title":"Heat Transfer over a Stretching Surface with Variable Thickness Embedded in Porous Medium in the Presence of Maxwell Fluid","authors":"E. Elbashbeshy, H. G. Asker, K. M. Abdelgaberc, E. Sayed","doi":"10.4172/2168-9873.1000307","DOIUrl":"https://doi.org/10.4172/2168-9873.1000307","url":null,"abstract":"The heat generation/absorption effects in a Maxwell fluid over a stretching surface with variable thickness embedded in a porous medium is considered. The nonlinear partial differential equations are transformed into nonlinear ordinary differential equations by similarity method. The resulting coupled nonlinear ordinary differential equations are solved under appropriate transformed boundary conditions using the Runge-Kutta fourth order along with shooting method. Comparisons with previously published work are performed and the results are found to be in very good agreement. Characteristics of dissonant parameters on velocity, temperature, skin friction coefficient and Nusselt number are collected and discussed through graphs and tables.","PeriodicalId":90573,"journal":{"name":"Journal of applied mechanical engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4172/2168-9873.1000307","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70869811","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: 10
Characterization of Polyurethane Coated Aerospace Aluminium Alloy (7075) By DSC, XRD and Adhesion Test 聚氨酯涂层航空铝合金（7075）的DSC、XRD和附着力测试表征
Journal of applied mechanical engineering Pub Date : 2017-12-14 DOI: 10.4172/2168-9873.1000296
R. Venkatakrishnan, T. Senthilvelan, T. Vijayakumar
{"title":"Characterization of Polyurethane Coated Aerospace Aluminium Alloy (7075) By DSC, XRD and Adhesion Test","authors":"R. Venkatakrishnan, T. Senthilvelan, T. Vijayakumar","doi":"10.4172/2168-9873.1000296","DOIUrl":"https://doi.org/10.4172/2168-9873.1000296","url":null,"abstract":"The research is envisaging characterizing the Polyurethane (PU) coating on AA 7075 so as to predict the aircraft coating life. Differential Scanning Calorimetry (DSC) and X-ray Diffractometry have been employed to investigate the differences in thermal behavior and crystalline structure of the polyurethane (GB BOND 141). DSC can be used to examine the material from a subambient starting temperature to the glass transition event and finally through the crystalline melting region. X-ray diffraction (XRD) provides important structural information about the polyurethane in the structure of semi-crystalline polymer substance consisting of two phases, viz., amorphous and crystalline as well as their fine texture which has a strong effect on physical and mechanical properties of polyurethane. After analyzing the characteristics, the extent of coating loss is examining visually in order to evaluate the adhesion property before carrying out the peel-off test.","PeriodicalId":90573,"journal":{"name":"Journal of applied mechanical engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4172/2168-9873.1000296","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49379678","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: 6
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