IOSR Journal of Mechanical and Civil Engineering最新文献_第6页

Optimization of process parameters in CNC milling for machining P20 steel using NSGA-II NSGA-II数控铣削加工P20钢的工艺参数优化

IOSR Journal of Mechanical and Civil Engineering Pub Date : 2017-06-01 DOI: 10.9790/1684-1403055763

M. Vardhan, G. Sankaraiah, M. Yohan

引用次数: 3

To Improve Mechanical Properties of Concrete Paver Blocks 提高混凝土摊铺料的力学性能

IOSR Journal of Mechanical and Civil Engineering Pub Date : 2017-06-01 DOI: 10.9790/1684-140305147151

Dinesh W. Gawatre, Akshay S. Ghaytadkar, Nikhil N. Gage, S. D. Bhor, S. S. Deore

引用次数: 1

The Effect of Coarse Aggregates Types on Properties of Self Compacting Concrete 粗集料类型对自密实混凝土性能的影响

IOSR Journal of Mechanical and Civil Engineering Pub Date : 2017-06-01 DOI: 10.9790/1684-1403065357

Manar A. Abdul Hady, A. AhmedAbdEl-azim, H. El-Ghazaly

{"title":"The Effect of Coarse Aggregates Types on Properties of Self Compacting Concrete","authors":"Manar A. Abdul Hady, A. AhmedAbdEl-azim, H. El-Ghazaly","doi":"10.9790/1684-1403065357","DOIUrl":"https://doi.org/10.9790/1684-1403065357","url":null,"abstract":"The main purpose of this study is to investigate the effect of using three types of coarse aggregates (gravel, basalt and dolomite) and three different percentages of water and cement on the properties of selfcompacting concrete. To this end, nine mixes containing different percentages of water and cement were designed. Three types of aggregates were used namely; gravel, basalt, and dolomite. The all fresh concrete mixes were prepared to achieve standard workability (slump flow). The compression, splitting tensile, and flexural strength tests were carried out on hardened self-compacting concretes after 28 days. In the nine mixes, three types of aggregates (gravel, basalt and dolomite), three cement content (350, 400, and 450 kg/m3), and three water cement ratio (0.46, 0.42, and 0.38) were used. Results showed that. Slump flow of dolomite selfcompacting concrete is greater than all concrete mixes with gravel and basalt. The density of self-compacting concrete basalt mix is greater than other concrete mixes with gravel and dolomite. The compressive, split tensile, and flexural strengths of self-compacting concrete dolomite mix is higher than all concrete mixes with gravel and basalt.","PeriodicalId":14565,"journal":{"name":"IOSR Journal of Mechanical and Civil Engineering","volume":"65 1","pages":"53-57"},"PeriodicalIF":0.0,"publicationDate":"2017-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89323820","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

Wear behavior and Microstructural Characterization of AA7075/MWCNT Surface Composites fabricated through Friction Stir Processing 搅拌摩擦法制备AA7075/MWCNT表面复合材料的磨损性能及显微组织表征

IOSR Journal of Mechanical and Civil Engineering Pub Date : 2017-06-01 DOI: 10.9790/1684-140305140146

Syed Azeem Pasha, Ravinder Reddy P, Laxmi Narayana P

引用次数: 4

Comparison of Thermal Energy Lost through Exhaust Gases at Various Engine Speeds and Torque Loads for Diesel and Biodiesel Fuels 柴油和生物柴油燃料在不同发动机转速和扭矩负荷下通过废气损失的热能的比较

IOSR Journal of Mechanical and Civil Engineering Pub Date : 2017-06-01 DOI: 10.9790/1684-1403070812

George Onyango Orido, G. Ngunjiri, M. Njue

{"title":"Comparison of Thermal Energy Lost through Exhaust Gases at Various Engine Speeds and Torque Loads for Diesel and Biodiesel Fuels","authors":"George Onyango Orido, G. Ngunjiri, M. Njue","doi":"10.9790/1684-1403070812","DOIUrl":"https://doi.org/10.9790/1684-1403070812","url":null,"abstract":"This paper compares amount of thermal energy lost through exhaust gases when an engine was operated on diesel and biodiesel. The study used a 4.7 hp (3.5 kW) single cylinder, four-stroke, multi-fuel engine which was operated on diesel and biodiesel fuels. Experiments were conducted for the two fuels at engine speeds of 1000, 1250 and 1500 rpm in accordance with the manufacturer’s recommendations. The engine was tested for torque loads of 6 to 22 Nm at intervals of 4 Nm for speeds and fuels studied. The instrumentation of the engine was mainly equipped with data acquisition system and software for analysis. Exhaust gas mass flow rate and temperature measurements were used to determine lost thermal energy. Lost heat energy depended on the temperature of the waste heat gases and mass flow rate of exhaust gas. The energy lost in exhaust gases increased substantially with increased exhaust gas temperature. The results showed that more energy was lost through exhaust when the engine used biodiesel as compared to when it was fueled on diesel. Maximum heat loss through exhaust was 18.7% of fuel energy when the engine used biodiesel at a speed of 1500 rpm and a torque load of 14 Nm.","PeriodicalId":14565,"journal":{"name":"IOSR Journal of Mechanical and Civil Engineering","volume":"42 1","pages":"08-12"},"PeriodicalIF":0.0,"publicationDate":"2017-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90200503","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

Contribution of components of Green Supply Chain Continuous Improvement in Green Supply Chain Performance measurementA Pilot Empirical Study of the Indian Automobile Manufacturing Sector 绿色供应链要素持续改进对绿色供应链绩效衡量的贡献——以印度汽车制造业为例的试点实证研究

IOSR Journal of Mechanical and Civil Engineering Pub Date : 2017-06-01 DOI: 10.9790/1684-140305110114

M. A. Gandhi

{"title":"Contribution of components of Green Supply Chain Continuous Improvement in Green Supply Chain Performance measurementA Pilot Empirical Study of the Indian Automobile Manufacturing Sector","authors":"M. A. Gandhi","doi":"10.9790/1684-140305110114","DOIUrl":"https://doi.org/10.9790/1684-140305110114","url":null,"abstract":"This paper is one of the several extensions of the research works done by [5]. Green Supply Chain Practices have been known to have an impact on Green Supply Chain Performance [6].This paper tests empirically through a pilot study of the Indian Automobile Manufacturing Sector, the contribution of the eleven variables constituting the construct Green Supply Chain Continuous Improvement in Green Supply Chain Performance measurement. Also the paper establishes the reliability of the questionnaire instrument developed previously for measuring the construct Green Supply Chain Continuous Improvement and also for measuring the eleven variables that constitute the construct Green Supply Chain Continuous Improvement. Further the paper establishes the correlation among these eleven variables. Finally this paper conducts Confirmatory Factor Analysis (CFA) to arrive at a single factor (linear combination of eleven variables constituting the construct Green Supply Chain Continuous Improvement) to aid in measuring the construct Green Supply Chain Continuous Improvement. Finally the paper establishes the order of contribution of the eleven variables constituting the construct Green Supply Chain Continuous Improvement.","PeriodicalId":14565,"journal":{"name":"IOSR Journal of Mechanical and Civil Engineering","volume":"62 1","pages":"110-114"},"PeriodicalIF":0.0,"publicationDate":"2017-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85395854","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

Improvement in Grs Compressor System to Increase Reliability of Combined Cycle Power Plant PT. PJB UP Muara Tawar 提高联合循环电厂可靠性的Grs压缩机系统改进

IOSR Journal of Mechanical and Civil Engineering Pub Date : 2017-06-01 DOI: 10.9790/1684-1403072529

W. P. Adi, Jhon Arcidma, Muhammad Roshie Friansyah, K. Gunawan, T. R. Biyanto

{"title":"Improvement in Grs Compressor System to Increase Reliability of Combined Cycle Power Plant PT. PJB UP Muara Tawar","authors":"W. P. Adi, Jhon Arcidma, Muhammad Roshie Friansyah, K. Gunawan, T. R. Biyanto","doi":"10.9790/1684-1403072529","DOIUrl":"https://doi.org/10.9790/1684-1403072529","url":null,"abstract":"Fuel gas is the main fuel used in PT PJB UP Muara Tawar combined cycle power plant. Reliability of combinend cycle power plant can be affected with fluctuative supply of fuel gas. Fuel gas supplied by PGN with pressure range 24-26 barG. Because of fluctuative pressure from supplier, pressure of gas must be adjusted by using Gas Receiving Station (GRS) system. There are HMI local panel in GRS as interface. HMI local panel consist of bypass system and fuel gas compressor system. Bypass system used to decrease gas pressure when gas pressure above the upper limit while compressor used to increase gas pressure when gas pressure under lower limit. GRS have an important role in operational Block 5 PT PJB UP Muara Tawar. In 9 December 2011-26 Januari 2015 period, Block 5 can not be operated because of mechanical seal failure in fuel gas compressor in GRS. Ordering new seal has take a long time. GRS can not be operated when compressor gas fail due to fluctuatif pressure of supplied gas. Moreover, GRS has far distance from main control room (MCR). It will be difficult to monitor GRS parameter from control room. By this problem, research and improvement in GRS should be done so that performance of GRS can be improved. Improvement in low limit fuel gas pressure was performed. By this changing, inlet pressure GT operation has wider range. In addition, making 1K changeover can increase GRS performance. The addition of overview, parameters, alarm indicators on Alspa HMI can improve the reliability of the operation of Gas Turbine because the operator can respond faster when there is a change of parameters in GRS.","PeriodicalId":14565,"journal":{"name":"IOSR Journal of Mechanical and Civil Engineering","volume":"70 1","pages":"25-29"},"PeriodicalIF":0.0,"publicationDate":"2017-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90849790","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

Effects of Machining Parameters on Tool Steel D2 in Wire cut EDM 线切割电火花加工中加工参数对工具钢D2的影响

IOSR Journal of Mechanical and Civil Engineering Pub Date : 2017-06-01 DOI: 10.9790/1684-1403061219

P. R. Patil, P. Solanki, Dr.S.P. Shekhawat

{"title":"Effects of Machining Parameters on Tool Steel D2 in Wire cut EDM","authors":"P. R. Patil, P. Solanki, Dr.S.P. Shekhawat","doi":"10.9790/1684-1403061219","DOIUrl":"https://doi.org/10.9790/1684-1403061219","url":null,"abstract":"Non-conventional machining process like electro discharge machining (EDM) and wire electrical discharge machining (WEDM) plays important role in precision manufacturing process. This micro-machining process may help overcome the limitations and restriction faced during conventional mechanical machining process.The selection of machining parameters in any machining process significantly affects production rate, product quality and production cost of a finished one component. Wire EDM process involves a large number of variables that affect its performance. In this paper, an attempt is made to study the effect of various process parameters such as pulse on time, pulse off time and current for high carbon high chromium cold work tool steel (D2). The experiment has been completed with the help of Design of experiment by Taguchi method is applied to create an orthogonal array of input variables using the ANOVA. The regression analysis is used to optimize the process parameter of Surface roughness. The experimental analysis showed that the combination of pulse on time, pulse off time and current is optimum to achieve minimization of surface roughness (Ra).","PeriodicalId":14565,"journal":{"name":"IOSR Journal of Mechanical and Civil Engineering","volume":"60 1","pages":"12-19"},"PeriodicalIF":0.0,"publicationDate":"2017-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75867560","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

Analysis For Determining Factors That Make Good Design Process In Automotive Manufacturing Organization. 汽车制造组织设计过程的决定因素分析。

IOSR Journal of Mechanical and Civil Engineering Pub Date : 2017-06-01 DOI: 10.9790/1684-14030597104

A. Mohammed, Iqbal Hussain, Zuraidah Bin Zain

{"title":"Analysis For Determining Factors That Make Good Design Process In Automotive Manufacturing Organization.","authors":"A. Mohammed, Iqbal Hussain, Zuraidah Bin Zain","doi":"10.9790/1684-14030597104","DOIUrl":"https://doi.org/10.9790/1684-14030597104","url":null,"abstract":"This study involved a literature review as well as information, data collected and analysis in two automotive industries. The paper investigated factors that make good design process in automotive manufacturing organization in order to improve the design process at each stage of manufacturing. The methodology adopted in this work is to evaluate the said factors by qualitative technique in sending structured questionnaires to three automotive companies in Malaysia and Nigeria to fifty five product design engineers in those companies in order to get their input on a specific phenomenon. Reliability, descriptive and correlation analysis were carried out using SPSS software to analyze and justified the consistency, reliability and significant of each factor in order to increase the decision makers confidence. The factors are categorized as independent variables in the analysis namely; Customer requirement, Product life cycle, Process planning. Technology and Information gathering. While products design process was set to be the dependent variable. The study results analysis indicate that all the selected factors are within the acceptable range.","PeriodicalId":14565,"journal":{"name":"IOSR Journal of Mechanical and Civil Engineering","volume":"57 1","pages":"97-104"},"PeriodicalIF":0.0,"publicationDate":"2017-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85928096","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

Effectiveness of Curing Compound on Concrete 混凝土养护复合材料的有效性

IOSR Journal of Mechanical and Civil Engineering Pub Date : 2017-06-01 DOI: 10.9790/1684-1403057376

Dinesh W. Gawatre, Komal Sawant, Rupali Mule, Neha Waydande, Dhanashri Randeve, T. Shirsath

引用次数: 5