Investigation of high-energy impact system using a physical model
https://doi.org/10.21285/1814-3520-2023-3-482-489
EDN: GARLWJ
Abstract
The aim of the experimental research is to validate the theoretical findings obtained from a mathematical model of a two-mass impact system. The research object is a physical model of a two-mass impact system, designed to prevent the transfer of the reactive component to the tool carrier. The model includes a housing, inertial mass, elastic member and impact part. In the operating position, a compressed elastic member is placed between the inertial mass and the impact part, held together by dogs. The height at which the impact part detaches from the inertial mass is determined by the position of the clamp, which separates the moving impact part and inertial mass during free fall. The study involved the fundamental principles of similarity theory, planning theory and data processing. The height at which the impact part detaches from the inertial mass and the impact part is taken as an independent factor, while the energy of a single impact serves as the response function, determined by the diameter of the cone impression delivered by the impact part onto a wooden base. Based on the analysis of physical laws, similarity criteria for the impact mechanism were established, along with dependent and independent indicators, and transfer equations from real parameters to model parameters were derived. The research findings indicate that the total area of air holes should be at least half of the cross-sectional area of the housing for a physical model. The relationship between the diameter of the cone impression on the wooden base and the impact energy was determined. The adequacy of the mathematical model describing the processes in the impact device was confirmed, with a maximum discrepancy of 18% between the results of mathematical and physical modelling of the operating process for the impact mechanism characterised by an increased energy of a single impact. Therefore, the research results validate the results obtained from the mathematical model of the impact mechanism. Further studies should focus on refining the physical model to record the rebound height of the inertial mass as a function of the parameters of the impact mechanism.
About the Authors
V. G. Zedgenizov
Irkutsk National Research Technical University
Russian Federation
Russian Federation
Viktor G. Zedgenizov, Dr. Sci. (Eng.), Professor, Professor of the Department of Road Construction Machinery and Hydraulic Systems
83 Lermontov St., Irkutsk 664074
T. A. Senotrusova
Irkutsk National Research Technical University
Russian Federation
Russian Federation
Tatiana A. Senotrusova, Postgraduate Student
83 Lermontov St., Irkutsk 664074
References
1. Baron L.I., Veselov G.M., Konyashin Yu.G. Experimental studies of impact-caused rock destruction processes. Moscow: USSR Academy of Sciences; 1962, 217 p. (In Russ.).
2. Afanasiev A.I. Energy efficiency of impact machines. Gornoe oborudovanie i elektromekhanika. 2002;9:37-39. (In Russ.).
3. Galdin N.S. Determining the main parameters of the working body of impact action under soil destruction. Stroitel'nye i dorozhnye mashiny = Construction and road building machinery. 2006;6:37-39. (In Russ.).
4. Chuprov I.V. Relationship between the specific energy of rock destruction and the single impact energy. Izvestiya vysshih uchebnyh zavedenij. Gornyj zhurnal. 2006;5:66-69. (In Russ.).
5. Geller Yu. Factors affecting the process of soil and rock massif destruction. Vestnik Zabajkal'skogo gosudarstvennogo universiteta = Bulletin of ZabGU. 2021;27(5):17-25. (In Russ.). https://doi.org/10.21209/2227924520212751725.
6. Melnikov A.V. Analysis of operation of a spring energy accumulator hammer under oversized rock destruction. Gornoe oborudovanie i elektromekhanika. 2008;11:43-47. (In Russ.).
7. Zedgenizov V.G., Al-saккaf Khaled Saed Taha. Results of studying striker's operation for oversize rocks destruction on a mathematical model. Vestnik Irkutskogo gosudarstvennogo tehnicheskogo universiteta = Proceedings of Irkutsk State Technical University. 2013;7:18-22. (In Russ.).
8. Al-saккaf Khaled Saed Taha. Striker size range for oversized rock destruction. Aviamashinostroenie i transport Sibiri: materialy III Vserossijskoj nauchno–prakticheskoj konferencii = Aircraft engineering and transport of Siberia: materials of the 3d All-Russian scientific and practical conference. Irkutsk, 11–12 April 2013. Irkutsk: Irkutsk State Technical University; 2013, р. 381-386. (In Russ.).
9. Zedgenizov V.G., Senotrusova T.A. Research of the main parameters effect on characteristics of a striker system with increased impact energy. Vestnik mashinostroeniya = Russian Engineering Research. 2021;12:31-34. https://doi.org/10.36652/0042-4633-2021-12-31-34.
10. Zedgenizov V.G., Kokourov D.V., Senotrusova T.A. The method of projectile triggering and acceleration and the percussion installation for its implementation. Patent RF, 2762133; 2021. (In Russ.).
11. Zedgenizov V.G., Kokourov D.V., Senotrusova T.A. Mathematical modeling of the percussion mechanism with a single impact energy increase. In: Materials Science and Engineering: IOP Conference Series. 2021;012042. https://doi.org/10.1088/1757-899X/1061/1/012042.
12. Guhman A.A. Introduction to the theory of similarity. Moscow: Vysshaya shkola; 1973, 296 р. (In Russ.).
13. Sedov L.I. Methods of similarity and dimension in mechanics. Moscow: Nauka; 1987, 423 р. (In Russ.).
14. Saitov V.I., Chuprov V.V. Similarity criteria of the crushing rock process by non-free impact. Gornyj informacionno-analiticheskij byulleten' = Mining informational and analytical bulletin. 2006;3:351-353. EDN: HZOEXV
15. Vishnevskij A.S., Balaganskij I.A. Similarity criteria for shock processes. In: Sbornik nauchnyh trudov Novosibirskogo gosudarstvennogo tekhnicheskogo universiteta = Collected scientific papers of the Novosibirsk State Technical University. Novosibirsk: Novosibirsk State Technical University; 1998, no. 1. р. 151-153. EDN: TOWQVH.
16. Turgunbaev M.S. Similitude parameters of process of destruction of the soil containing detrital and stone inclusion. Izvestiya VUZov Kyrgyzstana. 2016;11-1:47-51. (In Russ.). EDN: WWXAIT.
17. Soboleva N.S., Efremov A.K. Elastic-plastic shock processes similarity. Mashinostroenie i komp'yuternye tekhnologii. 2019;2:1-12. EDN: BGOJKS. https://doi.org/10.24108/0219.0001459.
18. Uskov I.B., Globus A.M., Onishchenko V.G. Physical modeling and similarity. Agrofizika ot A.F. Ioffe do nashih dnej: sbornik statej = Agrophysics from A.F. Ioffe to the present day: collected articles. St Petersburg: OOO "Izdatel'stvo "Alfavit"; 2002, р. 84-107. EDN: YSRNYY.
19. Koshkin S.V., Sokolov A.L. Processing and analysis of experimental results and testing of hypotheses. In: Special'naya tekhnika i tekhnologii transporta = Special Equipment and Transport Technologies. 2020;5:280-285. (In Russ.).
20. Chemodurov V.T., Litvinova E.V. System modeling: monograph. Simferopol: ARIAL; 2016, 236 p. (In Russ.).
Review
For citations:
Zedgenizov V.G., Senotrusova T.A. Investigation of high-energy impact system using a physical model. iPolytech Journal. 2023;27(3):482-489. (In Russ.) https://doi.org/10.21285/1814-3520-2023-3-482-489. EDN: GARLWJ
Views:
187
Email this article 