Program Development for Vibration Performance Evaluation of Powder Transfer Equipment

  • Lee, Hyoung-Woo (Research Institute of Mechanical Technology, Pusan University) ;
  • Ryu, Jeong-Hyeon (Research Institute of Mechanical Technology, Pusan University) ;
  • Park, Noh-Gill (Department of Mechanical Engineering, Pusan University)
  • 발행 : 2006.04.29

초록

A vibrational model of powder transfer equipment based on the lumped parameter method was developed, in which the operating motion consists of surging, bouncing, and pitching. After decoupling the equation of motion, the vibrational excitation source of the pitching motion was removed. So the designers are able to plan the optimum design to adjust the motion trajectory of the powder transfer equipment. That is, a procedure to adjust the motion trajectory of powder transfer equipment by changing design specifications such as the installation position, the direction of the motor, the driving speed, the mass unbalance, the stiffness coefficient, and the installation position of the support spring, is presented in this paper. The powder transfer equipment manufactured according to the results of this study did not suffer fatigue destruction, since the maximum stress on the basket structure was sufficiently small.

키워드

참고문헌

  1. Choi, B. H., Jeong C. K., Choi, S. H., 'Tooth Shape Design for the Screw Flights Cutting in Twin Screw Extruder,' Proceedings of the Korean Society of precision Engineering Conference, pp. 824-828, May 2002
  2. Shigley, J. E., Mischke, C. R., 'Mechanical Engineering Design,' McGraw-hill, 1989
  3. Wu, C. Y., Dihoru, L., Cocks, A. C. F., 'The flow of powder into simple and stepped dies,' Powder Technology, Vol. 134, pp. 24-39, 2003 https://doi.org/10.1016/S0032-5910(03)00130-X
  4. Jenike, A. W., 'Storage and flow of solids,' Bulletin, Vol.123, Engineering Experiment Station, University of Utah, 1964
  5. Tuzun, U., Heyes, D. M., 'Distinct element simulations and dynamic microstructural imaging of slow shearing granular flows,' Mechanics of Granular and Porous Materials, pp. 263-274, 1997
  6. Zhang, L., 'Shear deformation of granular media in pure shear, direct shear and simple shear,' PhD Thesis, Aston University, 2003
  7. Oda, M., Iwashita, K., 'Mechanics of Granular Materials,' Balkema, Rotterdam, 1999
  8. Cleary, P. W., Sawley, M. L., 'DEM modeling of industrial granular flows: 3D case studies and the effect of particle shape on hopper discharge,' Applied Mathematical Modeling, Vol. 26, pp. 89-111, 2002 https://doi.org/10.1016/S0307-904X(01)00050-6