Pakistan Journal of Engineering Technology最新文献_第7页

Flexural Strengthening of Reinforced Concrete Beams using Ferrocement Laminates with Partial Replacement of Fine Aggregate by Steel Slag 钢渣代替部分细骨料的钢筋混凝土层合板抗弯加固研究

Pakistan Journal of Engineering Technology Pub Date : 2014-07-01 DOI: 10.4103/0976-8580.141205

J. Sridhar, R. Malathy, R. Sangeetha

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引用次数: 16

Modeling and Optimization of Die Casting Process for ZAMAK Alloy ZAMAK合金压铸工艺建模与优化

Pakistan Journal of Engineering Technology Pub Date : 2014-07-01 DOI: 10.4103/0976-8580.141176

Satpal Sharma

{"title":"Modeling and Optimization of Die Casting Process for ZAMAK Alloy","authors":"Satpal Sharma","doi":"10.4103/0976-8580.141176","DOIUrl":"https://doi.org/10.4103/0976-8580.141176","url":null,"abstract":"The objective of the following study was to evaluate the effect of injection pressure of the molten metal, hydraulic pressure, temperature of the molten metal and the cooling time on the dimensional stability of the lock assembly of two wheelers. The material of the lock assembly was ZAMAK 3 (zinc, aluminum, magnesium, and copper) alloy. The lock assembly was produced by die casting process. In order to study the effect the process parameters such as injection pressure of the molten metal, hydraulic pressure, temperature of the molten metal and the cooling time, RSM (response surface methodology) with face center design was used. The experiments were carried out randomly according to design matrix. Three responses (shutter width, shutter thickness and shutter hinge length) were used for study. The RSM model was developed for each response. Analysis of variance for each response was also carried out to find out the significant factors and their interactions. Finally, optimization was carried out and the optimized input parameters were validated by conducting experiments at the optimum input parameters. The modeled and experimental results were compared and an error of 2-8% was observed.","PeriodicalId":53400,"journal":{"name":"Pakistan Journal of Engineering Technology","volume":"7 1","pages":"87"},"PeriodicalIF":0.0,"publicationDate":"2014-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88157696","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

Effect of CeO 2 Addition on Wear Behavior of Flame Sprayed Coatings 添加ce2对火焰喷涂涂层磨损性能的影响

Pakistan Journal of Engineering Technology Pub Date : 2014-07-01 DOI: 10.4103/0976-8580.141214

Satpal Sharma

{"title":"Effect of CeO 2 Addition on Wear Behavior of Flame Sprayed Coatings","authors":"Satpal Sharma","doi":"10.4103/0976-8580.141214","DOIUrl":"https://doi.org/10.4103/0976-8580.141214","url":null,"abstract":"MEC 1240A Ni base alloys are being widely used to improve the wear resistance of various industrial components in high temperature and in corrosive environment. Addition of rare earth elements like CeO 2 further improves the wear, corrosion, and oxidation resistance of these alloys. In the present work, commercially available Ni base powder (MEC 1240 A) was modified with the optimum addition of rare earth element CeO 2 . Rare earth addition refines microstructure and increases hardness of the coatings. Abrasive wear of rare earth modified flame sprayed coating, and the effect of load, abrasive size, and sliding speed on abrasive wear of these coatings was investigated by Response Surface Methodology (RSM). For this purpose, three factors load (L), abrasive size (A) (size in ΅m), and sliding speed (S) (m/ min) with three levels of each factor were used for investigation. Analysis of variance was carried out to determine the significant factors and interactions. Investigation showed that the load, abrasive size, and sliding speed were the main significant factors, while load and abrasive size, load and sliding speed, abrasive size, and sliding speed were the main significant interactions. The interaction effects are one order less than the main factor effects. Thus, an abrasive wear model was developed in terms of main factors and their significant interactions. The validity of the model was evaluated by conducting experiments under different wear conditions. A comparison of modeled and experimental results showed 2-7% error.","PeriodicalId":53400,"journal":{"name":"Pakistan Journal of Engineering Technology","volume":"16 1","pages":"141"},"PeriodicalIF":0.0,"publicationDate":"2014-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80981238","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

Facility layout selection guideline under dynamic demand and part variety 动态需求和部件变化下的设施布局选择准则

Pakistan Journal of Engineering Technology Pub Date : 2014-01-01 DOI: 10.4103/0976-8580.123806

J. Ramachandran, P. Prasad

引用次数: 6

Corrosion and Leaching Studies in Blended Copper Slag Mortar 铜渣混合砂浆的腐蚀浸出研究

Pakistan Journal of Engineering Technology Pub Date : 2014-01-01 DOI: 10.4103/0976-8580.123801

V. Saraswathy, S. Karthick, S. Muralidharan

引用次数: 11

Classification of power quality disturbances using minimum entropy and feed forward back propagation neural network approach 基于最小熵和前馈反向传播神经网络的电能质量扰动分类

Pakistan Journal of Engineering Technology Pub Date : 2014-01-01 DOI: 10.4103/0976-8580.123804

R. Rajkamal, P. Ranjan

引用次数: 1

Finite element analysis of CFST members externally strengthened by CFRP composites under flexure CFRP复合材料外加固CFST构件受弯作用的有限元分析

Pakistan Journal of Engineering Technology Pub Date : 2014-01-01 DOI: 10.4103/0976-8580.123803

G. Prabhu, M. C. Sundarraja

引用次数: 2

Residual energy based rebroadcast and overhearing reduction for energy efficient communication in mobile ad-hoc network 移动自组网中基于剩余能量的重播和减少窃听的节能通信

Pakistan Journal of Engineering Technology Pub Date : 2014-01-01 DOI: 10.4103/0976-8580.123799

V. Bhanumathi, R. Dhanasekaran

引用次数: 1

Design and development of energy efficient submersible switched reluctance motor 高效节能潜水开关磁阻电机的设计与开发

Pakistan Journal of Engineering Technology Pub Date : 2014-01-01 DOI: 10.4103/0976-8580.123800

M. Sundaram, P. Navaneethan, T. kumar

引用次数: 3

A computerized and on-line super twisting speed control of alternating current asynchronous machine using omron V1000® Drive 使用欧姆龙V1000®驱动器的交流异步电机的计算机化和在线超捻速度控制

Pakistan Journal of Engineering Technology Pub Date : 2014-01-01 DOI: 10.4103/0976-8580.123796

Esmaeil Salahshour, A. R. Noei, M. Malekzadeh

引用次数: 4