International Journal of Mechanical Engineering and Applications

Volume 9, Issue 1, February 2021

  • Unknown Surface Modeling Method Based on High-precision CMM

    Yue Ping Chen, Yi Chang Lu

    Issue: Volume 9, Issue 1, February 2021
    Pages: 1-5
    Received: 30 December 2020
    Accepted: 12 January 2021
    Published: 22 January 2021
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    Abstract: Reverse engineering is typically applied to solve the CAD model of unknown parts. As modern industry requirements on the accuracy of complex surfaces increase, setting up the high-precision CAD modeling of unknown complex surface parts through reverse engineering becomes an interesting research topic. Here, we present a method that combines manual ... Show More
  • Application and Analysis of Random Forest Algorithm for Estimating Lawn Grass Lengths in Robotic Lawn Mower

    Kazuki Zushida, Zhang Haohao, Hideaki Shimamura, Kazuhiro Motegi, Yoichi Shiraishi

    Issue: Volume 9, Issue 1, February 2021
    Pages: 6-14
    Received: 14 January 2021
    Accepted: 21 January 2021
    Published: 23 February 2021
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    Abstract: This paper states an estimation method for lawn grass lengths or ground conditions based on random forest algorithm from the observation data obtained by fusion of sensors. This estimation relates to Digital Twin and Virtual Twin of Hybrid Twin approach for the autonomous driving of robotic lawn mowers. The robotic lawn mowers are becoming popular ... Show More
  • Thermal Performance of MED-TVC Pilot at 95°C Elevated Temperature with Acid-anti-scalant Blend Treatment

    Osman Hamed, Amr Mohamed Mahmoud, Khalid Bamardouf, Ahmad Al Ghamdi, Ali Al-Hamzah

    Issue: Volume 9, Issue 1, February 2021
    Pages: 15-18
    Received: 1 February 2021
    Accepted: 9 February 2021
    Published: 23 February 2021
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    Abstract: Enhancing the efficiency of desalination plants and economics of desalinated water are the major goal to researchers. In desalination industry; Multi Effect Desalination (MED) has an economic potential which proves its maturity among different desalination technologies. Large MED plants were built and operated with satisfactory performance in the l... Show More
  • A Test Method for Helicopter Landing Gear Load

    Jiahong Zheng

    Issue: Volume 9, Issue 1, February 2021
    Pages: 19-24
    Received: 18 January 2021
    Published: 4 March 2021
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    Abstract: In this paper, a load test method of landing gear during take-off and landing of helicopter was proposed and the structure of helicopter landing gear, the modification of strain gauge bridge, the establishment of load calibration equation and the flight test of helicopter were studied. Firstly, according to the structure of helicopter landing gear,... Show More
  • Kugel Ball as an Interesting Application of Designing the Hydrosphere

    Ahmad Waguih Yacout Elescandarany

    Issue: Volume 9, Issue 1, February 2021
    Pages: 25-32
    Received: 3 February 2021
    Accepted: 14 February 2021
    Published: 10 March 2021
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    Abstract: Analytical solutions are not available for the partial hemispherical hydrosphere which called as the Kugel ball fountain or the Kugel ball. However, this study offers a comprehensive idea about this phenomenon presenting a design map that gives a panoramic sight enabling the designers to easily choose whatever specifications needed for their founta... Show More