Journal of Mechanical Engineering Research and Developments最新文献_第3页

A Review on Utilization of Light Weight Fly Ash Cenosphere as Filler in both Polymer and Alloy-Based Composites 轻质粉煤灰空心球填料在聚合物和合金基复合材料中的应用综述

Journal of Mechanical Engineering Research and Developments Pub Date : 2020-06-24 DOI: 10.30564/jmer.v3i2.1737

Manuel Teixeira, Xinhong Yang, Shankar Chakraborty, S. Kushnoore, N. Kamitkar, V. Atgur, Mallikarjun S Uppin, M. Satishkumar

引用次数: 4

Optimal batching plan of deoxidation alloying based on principal component analysis and linear programming 基于主成分分析和线性规划的脱氧合金最优配料方案

Journal of Mechanical Engineering Research and Developments Pub Date : 2020-06-24 DOI: 10.30564/jmer.v3i2.1903

Zinan Zhao, Shijie Li, Shuaikang Li

引用次数: 0

Design and fabrication of a motorized rice hulling machine 机动砻谷机的设计与制造

Journal of Mechanical Engineering Research and Developments Pub Date : 2020-05-31 DOI: 10.5897/jmer2019.0510

A. K, A. N., O. E, Ishola B.

{"title":"Design and fabrication of a motorized rice hulling machine","authors":"A. K, A. N., O. E, Ishola B.","doi":"10.5897/jmer2019.0510","DOIUrl":"https://doi.org/10.5897/jmer2019.0510","url":null,"abstract":"Rice is one of the most important cereal crop in the world. This paper present the design and performance evaluation of a rice hulling machine fabricated for removing chaffs from paddy rice as the consumer’s demand for rice requires the most hygienic, easy and less time consuming process. The design was segmented into the hopper and housing (processing) unit, the frame support and the power transmission unit. The housing unit consists of the upper and lower body where the sieve, hulling blade and cylinder is enclosed. The machine is powered by a 3.0 H.P. 950 rpm electric motor via a V-belt mechanism which deliverers the power requirement to the shaft on which the hulling cylinder is mounted. The hulling cylinder presses the paddy rice against the hulling blade to remove the chaff. The paddy rice is fed into the housing unit for processing through the machine hopper. The probability failure of the machine during loading has been minimized by proper material selection and using a factor of safety of 4 in the design process. The machine was designed to process about 8 kg of rice for small scale production. Performance evaluation of the machine shows that its efficiency is within the range of 83 to 88%, the hulling capacity is within the range of 22 to 25 kg/h and the maximum efficiency is at 5 kg paddy rice hopper loading which is about 60% of the hoppers’ volume. \u0000 \u0000 Key words: Rice, hulling, dehusking machine, paddy, fabrication.","PeriodicalId":16153,"journal":{"name":"Journal of Mechanical Engineering Research and Developments","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77678700","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

An Experimental Study of Surface Improvement in FDM Parts by Vapor Treatment Process FDM零件蒸气处理工艺表面改善的实验研究

Journal of Mechanical Engineering Research and Developments Pub Date : 2020-04-05 DOI: 10.30564/jmer.v3i1.1681

Mayank Prajapati, Sandeep Rimza

{"title":"An Experimental Study of Surface Improvement in FDM Parts by Vapor Treatment Process","authors":"Mayank Prajapati, Sandeep Rimza","doi":"10.30564/jmer.v3i1.1681","DOIUrl":"https://doi.org/10.30564/jmer.v3i1.1681","url":null,"abstract":"Fused deposition modeling (FDM) is one of the most adaptable additive manufacturing method owing to the cost-effectiveness and environment-friendly nature. However, FDM technique still possesses major difficulties in terms of poor surface quality because of adding layer by layer manufacturing process for the prototypes. It is desirable to explore an efficient technique for FDM parts to enhance the poor surface quality and dimensions precision. In the present paper, an effort has been made to enhance the surface quality and optimize the critical processing parameter of FDM based benchmark using vapor smoothing process (VSP). A comparative experimental study has been performed by design of experiments (DOE), Taguchi technique to find the influence of input design parameters on the surface finish of benchmark FDM parts. The results of the present investigation show that VSP treatment improves the surface quality of FDM parts to micro level with negligible dimensional variation. It is observed that improved surface quality is found in the 1,2, -Dichloroethane chemical at 90° part build orientation, 0.25 mm layer thickness, 10% fill density and 90 second exposure times.","PeriodicalId":16153,"journal":{"name":"Journal of Mechanical Engineering Research and Developments","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82430668","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

Numerical investigation on heat transfer enhancement inside a rectangular microchannel with vortex generator using TiO2, Cuo-water nanofluids 利用TiO2、cuo -水纳米流体对带涡发生器的矩形微通道内强化传热的数值研究

Journal of Mechanical Engineering Research and Developments Pub Date : 2020-04-05 DOI: 10.30564/jmer.v3i1.1568

Arash Behaeen, M. Nimafar

{"title":"Numerical investigation on heat transfer enhancement inside a rectangular microchannel with vortex generator using TiO2, Cuo-water nanofluids","authors":"Arash Behaeen, M. Nimafar","doi":"10.30564/jmer.v3i1.1568","DOIUrl":"https://doi.org/10.30564/jmer.v3i1.1568","url":null,"abstract":"Article history Received: 16 December 2019 Accepted: 17 January 2020 Published Online: 31 March 2020 One of the innovative ways to improve heat transfer properties of heat exchangers, is using nanofluids instead of traditional fluids. Due to presence of metal and oxides of metal particles in nanofluids structure, they have better potential in different environments and conditions than conventional fluids and having higher thermal conductivity causes improvements in heat transfer properties. In this research flow of two different nanofluids through a rectangular microchannel containing a different number of longitudinal vortex generators (lvgs), has been investigated. Simulations conducted under laminar flow boundary condition and for varied Reynolds numbers of 100 to 250. Considered volumetric concentration in this paper is 1, 1/6 and 2/3 %. Results showed, nanofluids and the LVGs notably improve the heat transfer rates within the microchannel. havg improved with increasing the nanoparticles volume concentrations and Reynolds number, while the opposite trends recognized for pressure drop. havg improved for 4 to 12 and 9 to 18% for TiO2 and CuO nanofluids, respectively for different volume concentrations in simple microchannel. For lvg-enhanced microchannel the amount of improvements is about 9-14 and 5-10% for CuO and TiO2, respectively. Also using vortex generators alone improved havg for 15-25% for different number of lvgs.","PeriodicalId":16153,"journal":{"name":"Journal of Mechanical Engineering Research and Developments","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84366475","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

DEVELOPMENT OF SHAPE MEMORY ALLOY BASED QUARTER CAR SUSPENSION SYSTEM 基于形状记忆合金的四分之一汽车悬架系统的研制

Journal of Mechanical Engineering Research and Developments Pub Date : 2020-04-05 DOI: 10.30564/jmer.v3i1.1716

S. Palaniappan, Rajasekar Rathanasamy, Sivasenapathy Chellamuthu, S. Pal

{"title":"DEVELOPMENT OF SHAPE MEMORY ALLOY BASED QUARTER CAR SUSPENSION SYSTEM","authors":"S. Palaniappan, Rajasekar Rathanasamy, Sivasenapathy Chellamuthu, S. Pal","doi":"10.30564/jmer.v3i1.1716","DOIUrl":"https://doi.org/10.30564/jmer.v3i1.1716","url":null,"abstract":"Article history Received: 25 February 2020 Accepted: 27 March 2020 Published Online: 31 March 2020 It is well-known that suspension systems plays a major role in automotive technology. Most of the today’s vehicle applies a passive suspension systems consisting of a spring and damper. The design of automotive suspension have been a compromise between passenger comfort, suspension travel and road holding ability. This work aims in reducing the suspension travel alone by developing a quarter car model suspension for a passenger car to improve its performance by introducing shape memory alloy spring (Nitinol) instead of traditional spring. A two way shape memory alloy spring possesses two different stiffness in its two different phases (martensite and austenite). In this study, road profile is considered as a simple harmonic profile and vibration analysis of aminiature quarter car model suspension system has been carried out experimentally. Using theoretical method, the displacement of the sprung mass is also studied and discussed. The vibration analysis have been carried out for the suspension system at both phases of the spring and the results gives a significant improvement in reducing the displacement of sprung mass for various excitation frequencies.","PeriodicalId":16153,"journal":{"name":"Journal of Mechanical Engineering Research and Developments","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85219746","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

Best Determined Position of Vents Based on Jet Cooling Model 基于射流冷却模型的最佳排气口位置确定

Journal of Mechanical Engineering Research and Developments Pub Date : 2020-04-05 DOI: 10.30564/jmer.v3i1.1663

Na Huang

引用次数: 0

The Results of Research to Determine the Parameters of Hardening Working Area of the Gin and Linter Grates 轧轧机和轧轧机淬火工作区参数确定的研究结果

Journal of Mechanical Engineering Research and Developments Pub Date : 2020-03-27 DOI: 10.30564/jmer.v2i2.1574

M. Agzamov, Rakhmatov Mashkhur Bakhtiyarovich, M. Agzamov

引用次数: 0

Reviewer Acknowledgements for Mechanical Engineering Research, Vol. 9, No. 2 《机械工程研究》第9卷第2期审稿人致谢

Journal of Mechanical Engineering Research and Developments Pub Date : 2020-01-31 DOI: 10.5539/mer.v9n2p58

Len Bai

引用次数: 0

Gesture Control Robotic Arm 手势控制机械臂

Journal of Mechanical Engineering Research and Developments Pub Date : 2020-01-31 DOI: 10.5539/MER.V9N2P51

D. Sreeharsha

引用次数: 1