Analytical Modeling of Oscillations of Movable Operating Elements of a Roll-Drum Activator

  • Authors

    • Alexander Krot
    • Artem Ruchka
    • Alexander Savchenko
    • Olga Krot
    • Dmitry Supryaga
    2018-09-15
    https://doi.org/10.14419/ijet.v7i4.3.19552
  • Law of motion, Oscillation, Own frequency, Roll, Roll-drum activator.

  • Abstract

    The article investigates the equipment for mechanical activation of building mixtures and the effect of the resulting oscillations on the activation efficiency and on the stability of the equipment operation. The activation of the entire building mixture with filler and wetted by finite amount of water can solve many problems that determine the quality of bricks or materials. Carried out researches of harmful oscillations of working of roll-drum activator (RDA) and their effects on the quality of processing. The own frequency of free oscillations arising in the RDA during its operation was determined experimentally. The possibility to stabilize the machine by installing shock absorbers has been examined. The influence of unwanted oscillations on the quality of products has been examined; the most optimal stabilization of the movement of "lever – roll" by using of additional external oscillations on the system has been defined. The analytical model of law of motion of the system with external oscillations and the parameters of its oscillations has been obtained. The parameters of oscillations of the roll has been determined; it was confirmed that the external oscillations have a positive effect on the efficiency of the activation and product quality.

     

     

  • References

    1. [1] Baláz P. Extractive Metallurgy of Activated Minerals. – Amsterdam, Lausanne, New York, Oxford, Shannon, Singapore, Tokyo: Elsevier, (2000), p:278.

      [2] Boldyrev VV, “About the history of Mechanochemistry in Siberiaâ€, Chemistry for Sustainable Development. Vol. 10, â„– 1-2, (2002), pp:3-12.

      [3] Takacs L, Carey Lea M, “The first mechanochemistâ€, Journal of Materials Science. Vol. 39, â„– 16-17, (2004), – pp:4987-4993.

      [4] M.Carry-Lea. “Transformations of Mechanical into Chemical Energy†American journal of science. №277, (1894), – pp:377–382.

      [5] Hint JA. “Basics of silicalcite products: monographâ€. State publishing literature for Construction, Architecture and Building Materials, (1962), p:642.

      [6] Krot O. “Scientific basis for the creation of equipment for mechanical activation and pressing mixesâ€, Thesis for obtaining sciences degree of Doctor. techn. sciences specials. 05.05.02 "Machinery for the production of building materials and structures" Kharkiv, (2013), 36 p.

      [7] Wen Yu, Chai TY, Yi Yuan. (1996). “Centrifuges Rotor Adaptive Control Using Support Stiffness Change and Decreased Vibration Force Techniqueâ€, 13th Triennial World Congress. San Francisco, USA, Vol. 29, pp:469–474.

      [8] Krot A. Laboratory workshop on the study of the subject "Basic scientific research": Teach method. posibn. Kharkiv: HDTUBA, (2009), p:99.

      [9] Meshcherskiy I.V. Sbornik zadach po teoreticheskoy mekhanike. M.: Nauka. Gl. red. fiz.-mat. lit., 1986, 448 s.

      [10] Bat' M.I., Dzhanelidze G.YU., Kel'zon A.S. Teoreticheskaya mekhanika v primerakh i zadachakh. Uchebnoye posobiye dlya vtuzov. - 8-ye izd., Pererab. - M .: Nauka, 1984. - 504 s.

      [11] Theoretical Mechanics. E-learning course for students of full-time and correspondence courses. Compiled by Ildar Karimov. Bashkir State Agrarian University. Department of Theoretical and Applied Mechanics. available online: http://www.teoretmeh.ru/.

  • Downloads

  • How to Cite

    Krot, A., Ruchka, A., Savchenko, A., Krot, O., & Supryaga, D. (2018). Analytical Modeling of Oscillations of Movable Operating Elements of a Roll-Drum Activator. International Journal of Engineering & Technology, 7(4.3), 58-63. https://doi.org/10.14419/ijet.v7i4.3.19552

    Received date: 2018-09-12

    Accepted date: 2018-09-12

    Published date: 2018-09-15