International Journal of Mechanical Engineering and Applications

Volume 12, Issue 1, February 2024

  • Research Article

    Investigation of the Surface Produced by Shape Adaptive Polishing

    Muhammad Mubashar Saeed

    Issue: Volume 12, Issue 1, February 2024
    Pages: 1-7
    Received: May 11, 2023
    Accepted: May 29, 2023
    Published: Jan. 08, 2024
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    Abstract: Ultra-precision machining (UPM), is renowned for manufacturing products with high precision and surface quality has found diverse application in the optics, automobile, medical instruments, and aerospace industries. Shape adaptive bonnet polishing (SABP), which uses a flexible, non-rigid bonnet tool can be used an alternative ultra-precision polish... Show More
  • Research Article

    Mechanical Properties of Spherical Deep-Sea Pressure Structures by Integral Hydrobulge Forming with Triangular Patch Polyhedrons

    Yang Jing, Chenghai Kong, Jingchao Guan*, Wei Zhao, Xilu Zhao

    Issue: Volume 12, Issue 1, February 2024
    Pages: 8-17
    Received: Dec. 14, 2023
    Accepted: Jan. 02, 2024
    Published: Jan. 23, 2024
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    Abstract: Manned pressure shells subjected to deep-sea pressure are designed with a spherical shell structure because they are subjected to perfectly symmetrical pressures. A spherical pressure shell has excellent mechanical properties against deep-sea pressure; therefore, it has the advantage of relatively good buckling properties. However, there are high d... Show More
  • Research/Technical Note

    Design of Multi-Input Multi-Output Non-linear Model Predictive Control for Main Steam Temperature of Super Critical Boiler

    Sumanta Basu*, Sushil Cherian, Jisna Johnson

    Issue: Volume 12, Issue 1, February 2024
    Pages: 18-31
    Received: Jan. 06, 2024
    Accepted: Feb. 01, 2024
    Published: Feb. 21, 2024
    DOI: 10.11648/j.ijmea.20241201.13
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    Abstract: Flexible operation of coal-fired power plants is becoming increasingly necessary for successful integration of large-scale renewable power generation into the power grid. The maximum ramp rate and the number of load cycles are generally limited by the thermal stress experienced by the boiler pressure parts, turbine metallurgy and creep and fatigue ... Show More
  • Research Article

    Checking the Mechanisms of Internal Combustion Engines for the Presence of Parasitic Forces Using a New Methodology

    Tursunbaev Bakhodir*, Fayzullaev Khasan, Tursunbaev Temur

    Issue: Volume 12, Issue 1, February 2024
    Pages: 32-36
    Received: Jan. 23, 2024
    Accepted: Feb. 05, 2024
    Published: Feb. 28, 2024
    DOI: 10.11648/j.ijmea.20241201.14
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    Abstract: This article presents the results of a study of internal combustion engines equipped with a crank mechanism according to the efficiency criterion using a new method for determining the operating efficiency of machines and engines. The study revealed the presence of parasitic forces in internal combustion engines equipped with a crank mechanism. The... Show More