International Journal of Mechanical Engineering and Applications

Volume 4, Issue 3, June 2016

  • Application of Markov Theoretical Model in Predicting Risk Severity and Exposure Levels of Workers in the Oil and Gas Sector

    Okwu Modestus Okechukwu, Thaddeus C. Nwaoha, Ombor Garrick

    Issue: Volume 4, Issue 3, June 2016
    Pages: 103-108
    Received: 9 May 2016
    Accepted: 21 May 2016
    Published: 6 June 2016
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    Abstract: In this research, Markov theoretical approach (MTA) was used to forecast the severity of risk workers were exposed to in the oil and gas industry and to determine the average period of time it would take workers to get exposed to menace of less severity and the possibility of transiting to a state where risk is high. The perils were classified into... Show More
  • Investigation of Effects of Tool Geometry Parameters on Cutting Forces, Temperature and Tool Wear in Turning Using Finite Element Method and Taguchi’s Technique

    Le Hieu Giang, Mai Duc Dai, Pham Minh Duc

    Issue: Volume 4, Issue 3, June 2016
    Pages: 109-114
    Received: 4 May 2016
    Accepted: 20 May 2016
    Published: 6 June 2016
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    Abstract: Turning is one of the most widely metal cutting methods. Machines, tool geometry and machining parameters are the main factors influencing machining quality and efficiency. So there is a lot of research on it. This paper studies on the influence of the geometrical parameters of the tool including: back rake angle (BR), side rake angle (SR) and side... Show More
  • Estimating On-Bottom Stability of Offshore Pipelines in Shallow Waters of the Gulf of Guinea

    Ogbonda Douglas Chukwu, Chinwuba Victor Ossia, C. O. Akhigbemidu

    Issue: Volume 4, Issue 3, June 2016
    Pages: 115-122
    Received: 14 May 2016
    Accepted: 24 May 2016
    Published: 13 June 2016
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    Abstract: Pre-installation Stability analyses of pipelines are required to prevent lateral and upheaval buckling in service. In this study, the hydrodynamic forces associated with an offshore pipeline is analyzed, thereby determining limiting steel wall-thickness and submerged weight necessary to prevent collapse and propagation buckling, contain pressure an... Show More
  • A Study on Energy Optimization of Heat Exchangers in a Gasification System

    Le Minh Nhut, Young-Sub Moon, Youn Cheol Park

    Issue: Volume 4, Issue 3, June 2016
    Pages: 123-129
    Received: 16 May 2016
    Accepted: 27 May 2016
    Published: 13 June 2016
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    Abstract: The objective of this research is the optimization of energy parameters such as the temperature and flow rate of the fluid in heat exchangers in the gasification system in order to increase the recovery rate of energy in the system. A mathematical model of these heat exchangers is developed to predict their operating performance under the specified... Show More
  • Deduction of Reliability Parameter for Spherical Roller Bearing

    Baek Ju Sung

    Issue: Volume 4, Issue 3, June 2016
    Pages: 130-135
    Received: 10 May 2016
    Accepted: 28 May 2016
    Published: 18 June 2016
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    Abstract: To establish the reliability assessment technology of spherical roller bearing, we performed the major failure analysis, and then produced the reliability parameters for spherical roller bearing. As a first step, we made out the failure analysis data of roller bearing. And then, we decided the reliability parameters of spherical roller bearing by u... Show More