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Dynamic properties of screw-bolts connections of sowing machine

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Języki publikacji
EN
Abstrakty
EN
A vehicle is a complicated system under the influence of vibration caused by an inequality of the road surface, variable speed, unbalance of the rotating elements. The main factors influencing the relaxation of threaded connections (TC) are the amplitude, frequency and gradient of vibration. Although the frequencies of these oscillations are distributed over a wide range, the general effects of dynamic loading on bolted connections are similar. Main effects: (1) loosening the nut/bolt and (2) failure due to fatigue failure. The analysis of the technological process of agricultural machinery shows that the main external factors influencing their work are the profile of the surface of the field, the hardness and moisture of the soil, the speed of the unit, the instability of the engine, the traction of the wheels of the tractor and others. To study the integrity of TC, which is tested on the stand, consider the design scheme of nonlinear oscillations of the design in the presence of gaps in the TC. The study was conducted in two modes of movement of the drill: with tightened bolts and weakened bolts. For the survey, the method of spectral analysis of multidimensional periodically non-stationary random signals was used. In the process of testing, the dynamic loading of bolted joints installed on the respective knots and components of the drill was evaluated. From the conducted research it follows that the maximum vibrations acting on the TC of the drill may be in the vicinity of high-frequency resonances of TC. In parallel, nonlinear mathematical models of the oscillations of the seeder and the weakened TC were developed. The theoretical results qualitatively correspond to the experimental data.
Rocznik
Strony
584--593
Opis fizyczny
Bibliogr. 18 poz., rys., wykr.
Twórcy
  • Lviv National Agrarian University, Faculty of Mechanical and Power Engineering, Department of Mechanical Engineering, 1 Volodymyra Velykogo, 80381, Lvivska, oblast, Zovkivskyy rayon, Dubliany, Ukraine
  • Szkoła Główna Gospodarstwa Wiejskiego w Warszawie, Wydział Budownictwa i Inżynierii Środowiska, Instytut Inżynierii Środowiska, ul. Nowoursynowska 159, 02-776 Warszaw,a Poland
  • Lviv Polytechnic National University, Institute of Engineering Mechanics and Transport, Department of Transport Technologies, 32 Bandera, 79000 Lviv, Ukraine
autor
  • Lviv Polytechnic National University, Institute of Engineering Mechanics and Transport, Department of Transport Technologies, 32 Bandera, 79000 Lviv, Ukraine
  • Lviv National Agrarian University, Faculty of Mechanical and Power Engineering, Department of Mechanical Engineering, 1 Volodymyra Velykogo, 80381, Lvivska, oblast, Zovkivskyy rayon, Dubliany, Ukraine
  • Lviv National Agrarian University, Faculty of Mechanical and Power Engineering, Department of Mechanical Engineering, 1 Volodymyra Velykogo, 80381, Lvivska, oblast, Zovkivskyy rayon, Dubliany, Ukraine
Bibliografia
  • Birger, I.A. & Iosilevich, G.B. (1990). Rez’bovyye i flantsevyye soyedineniya [Threaded and flanged connections]. Moskva: Mashinostroyeniye.
  • Bolotin, V.V. (ed.) (1978). Vibratsii v tekhnike. T. 1. Kolebaniya lineynykh sistem [Vibration in engineering. Vol. 1. Oscillations of linear systems. Mechanical engineering]. Moskva: Mashinostroyeniye.
  • Diveyev, B. (2015). Impact and particle buffered vibration absorbers optimization and design. Ukrainian Journal of Mechanical Engineering and Material Science, 1(2), 35-50.
  • Diveyev, B., Vikovych, I., Martyn, V. & Dorosh, I. (2015). Optimization of the impact and particle vibration absorbers. In Proceeding of 22nd International Congress on Sound and Vibration (ICSV22), Vol. 2 [electronic edition].
  • Gopala Rao, L.V.V. & Narayanan, S. (2008). Preview control of random response of a half-car vehicle model traversing rough road. Journal of Sound and Vibration, 310(1-2), 352-365.
  • Ibrahim, R.A. & Pettit, C.L. (2005). Uncertainties and dynamic problems of bolted joints and other fasteners. Journal of Sound and Vibration, 279(3-5), 857-936.
  • Inoue, M., Yokomichi, I. & Hiraki, K. (2013). Design of Particle/Granules Damper for Vertical Vibration with Approximate Analysis. Journal of System Design and Dynamics, 7(4), 367-377.
  • Junker, G. (1969). Kriterien fűr das selbsttätige Lösen von Verbindungselementen unter Vibration [Criteria for the automatic release of fasteners under vibration]. Berlin: SAE.
  • Kovtun, A.V. (2011). Ob izmenenii rezonansnykh chastot kolebaniy mekhanicheskikh sistem pri nalichii treniya [On the change in the resonance frequencies of oscillations of mechanical systems in the presence of friction]. Mekhanika ta Machinobuduvannya, 1, 11-17.
  • Kurushin, M.I., Kurushin, A.M. & Barmanov, I.S. (2011). Distribution of forces by turns and coefficients of external variable load in threaded joints in the conditions of product vibration. Bulletin of Samara State Aerospace University, 3, 27.
  • Lee, J.H. & Singh, R. (2008). Existence of super-harmonics in quarter-vehicle system responses with non-linear inertia hydraulic track mount given sinusoidal force excitation. Journal of Sound and Vibration, 313, 367-374.
  • Mikishev, G.N. & Rabinovich, B.Y. (1968). Dynamics of the body with cavities partially filled with liquid. Moskva: Mechanical Engineering [Trans. from Russian].
  • Mocherniuk, D.Y. (1970). Research and calculation of threaded joints of pipes used in the oil industry. Moskva: Nedra [Trans. from Russian]
  • Sakai, T. (2011). Mechanism for a bolt and nut self loosening under repeated bolt axial tensile load. Journal of Solid Mechanics and Materials Engineering, 5(11), 627-639.
  • Stotsko, Z.A., Diveyev, B.M., Sokil, B.I. & Topilnytskyy, V.G. (2006). Devices for eliminating the vibrations of technological machines. Manufacturing Engineering, 2(5), 2-53.
  • Timoshenko, S.P. (1967). Kolebaniya v inzhenernom dele [Vibrations in engineering]. Moskva: Nauka.
  • Wang, T., Song, G., Liu, S., Li, Y. & Xiao, H. (2013). Review of Bolted Connection Monitoring. International Journal of Distributed Sensor Networks, 9(12), 871213. http://dx.doi.org/10.1155/2013/871213
  • Yakushev, A.I., Mustaev, R.K. & Mavlyutov, R.R. (1979). Povysheniye prochnosti i nadezhnosti rez’bovykh soyedineniy [Increase of strength and reliability of threaded joints]. Moskva: Mashinostroyeniye.
Uwagi
Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021).
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-e6785a1b-16fb-4a90-90d8-f9d959e77fab
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