Adjustment of Analytical Examples for Installation of Inertical and Fastest Parameters of Bilateral Resonance Vibrating Machines

2022;
: pp. 48 - 66
1
Department of Robotics and Integrated Mechanical Engineering Technologies, Lviv Polytechnic National University
2
Department of Strength of Materials and Structural Mechanics, Lviv Polytechnic National University,
3
Lviv Polytechnic National University, Department of Highways and Bridges
4
Lviv Polytechnic National University, Ukraine

Goal. It consists in substantiating the rational design of the vibroconveyor as a component of the vibroconveyor line of length 8 m , which will provide the necessary technological parameters for the transportation of artificial cargoes. The difficulty of this task is that the speed of transporting goods by mass 12 кg should be at least 0.5 m / s . Topicality. The need for these studies is due to the fact that the vibration machine interacts with the parameters of the oscillation system, the main of which are inertial, rigid and power. If they are correctly calculated and implemented in the design of a vibration machine, it will be robust. Failure to consider one type of parameters causes an error in the calculation. Method. The refinement of analytical expressions is carried out using the classical approaches for linear vibrational systems with harmonic perturbation. For this the physical model of the two-mass resonance oscillation system is considered and its mathematical model is developed as a system of linear differential equations. On the basis of this the solution is formed (the values of the amplitudes of oscillations). Unknown parameters remain rigid, provided that the inertia is constructed. Therefore, using the determinants of the matrix of coefficients for unknowns, the necessary mathematical operations are performed that satisfy the imposed conditions for the establishment of rigid parameters. Results. In the paper a series of analytical expressions are obtained that examine the mutual influence of rigid parameters in the system. A comparison of the obtained results according to the specified expressions with classical analytical expressions is made. It is established that the values according to the proposed expressions do not differ significantly from the classical approaches, and therefore, in the case of in-energy calculations, it is sufficient to use existing expressions. The proposed expressions are more precise and therefore recommended for scientific research. Scientific novelty. For the first time, we succeeded in synthesizing analytical expressions for the establishment of inertia-rigid parameters that allow more accurate calculation of two-mass resonance oscillation systems. It is established that for the correct choice of resonant alignments in the system, the mutual influence of rigid parameters in the system is not significant, and therefore it is scientifically grounded to use classical approaches. Practical significance. Established analytical expressions can be widely used in the design of vibration process equipment. The transparency of the output and the relative simplicity of the proposed analytical expressions allows for their widespread use in practice.

  1. Medvid’ M. V. (1963). Automatic orienting loading devices and mechanisms. M. : Mashgiz. 195 р.
  2. Bauman V. A., Byhovskij I. I. (1977). Vibration machines and processes in construction. M. : Vysshaya shkola. 255 р.
  3. Nazarenko І. І. (2007). Vibrating machines and processes of the construction industry. K. : KUNBA. 230 р.
  4. Goncharevich I. F., Strel’nikov L. P. (1959). Electro-vibration transport technology. M. : Gostekhizdat. 262 р.
  5. Rabinovich A. N., Yahimovich V. A., Boechko B. Yu. (1965). Automatic loading devices of vibration type. K. : Tekhnika. 380 р.
  6. Lanets, O. (2018). Basics of calculation and construction of vibration machines. Book 1: Theory and practice of creating vibration machines with harmonious movement of the working body. Lviv : Vydavnytstvo Lvivskoi politekhniky. 612 р.
  7. Lanets O. S., Maistruk P. V, Borovets V. M., Derevenko I. A. (2019). Automation Analysis of energy efficiency of vibration machines with an inertial drive. Automation of production processes in mechanical engi- neering and instrument engineering, Vol. 3, No. 2, Рp.102-108.
  8. Lanets O. S., Dmytriv V. T., Borovets V. M. (2020). Analytical model of the two-mass above resonancesystem of the eccentric-pendulum type vibration table. Applied Mechanics and Engineering.
  9. Gharaibeh M. A., Obeidat A. M., Obaidat M. H. (2018): Numerical investigation of the free vibration of partially clamped rectangular plates. Journal of Applied Mechanics and Engineering, Vol. 23, No. 2, Рp. 385-400.
  10. Joubaneh Eshagh F., Barry Oumar R., Tanbour Hesham E. (2018). Analytical and experimental vibration of sandwich beams having various boundary conditions. Journal of Sound and Vibration, Vol. 18.
  11. Xianjie Shi, Dongyan Shi (2018). Free and forced vibration analysis of T-shaped plates with general elastic boundary supports. Journal of Low Frequency Noise, Vibration and Active Control, Vol. 37, No. 2, Рp. 355-372.
  12. Panovko G., Shokhin A. (2018): Experimental analysis of the oscillations of two-mass system with selfsynchronizing unbalance vibration exciters. Journal Vibroengineering PROCEDIA, Vol. 18, Рp.8-13.
  13. O. S. Lanets, V. T. Dmytriv, O. Yu. Kachur. (2021). Modelling of equivalent mass and rigidity of continual segment of the inter-resonance vibration machine. Applied Mechanics and Engineering, Vol. 26, No. 2, Рp.70-83.
  14. N. Yaroshevich, V. Puts, Т. Yaroshevich , O. Herasymchuk .(2020). Slow oscillations in systems with inertial vibration exciters. Vibroengineering PROCEDIA, Vol. 32, Рp. 20-25.
  15. Filimonikhin G., Yatsun V., Kyrychenko A., Hrechka A., Shcherbyna K. (2020). Synthesizing a resonance anti-phase two-mass vibratory machine whose operation is based on the Sommerfeld effect. Eastern-European Journal of Enterprise Technologies, № 6/7 (108), Рр. 42-50.
  16. Gursky V., Kuzio I., Korendiy V. (2018). Optimal synthesis and implementation of resonant vibratory systems. Universal Journal of Mechanical Engineering, Vol. 6, Issue 2, Рp. 38-46.
  17. Igumnov A. L., Metrikin S. V., Nikiforova V. I. (2017). The dynamics of eccentric vibration mechanism (Part 1). Journal of Vibroengineering, Vol. 19, Issue 7, Рp. 4854-4865.
  18. Korendiy V., Lanets O., Kachur O., Dmyterko P., Kachmar R. (2021). Determination of inertia-stiffness parameters and motion modelling of three-mass vibratory system with crank excitation mechanism. – Vibroengineering Procedia, Vol. 36,  Рр. 7-12.
  19. Lanets O. S., Kachur O. Yu., Korendiy V. М. (2019). Classical approach to determining the natural frequency of continual subsystem of three-mass inter-resonant vibratory machine. Ukrainian Journal of Mechanical Engineering and Materials Science, Vol. 5, Рр. 77-87.
  20. Lanets O., Kachur O., Korendiy V., Dmyterko P., Nikipchuk S., Derevenko I. (2021). Determination of the first natural frequency of an elastic rod of a discrete-continuous vibratory system. Vibroengineering Procedia, Vol. 37, Рр. 7-12.