FRACTURE LOAD DETERMINATION FOR THE STRUCTURAL ELEMENTS OF TRUCKS SUSPENSIONS WHEN INTERACTING WITH ANTI-RAM DEVICES

IVCHENKO Vadim I., Head of the Automobile Department of the Republican Computer Center of Mechanical Engineering, Joint Institute of Mechanical Engineering of the NAS of Belarus, Minsk, Republic of Belarus, This email address is being protected from spambots. You need JavaScript enabled to view it.">This email address is being protected from spambots. You need JavaScript enabled to view it.

SHMIALIOU Aliaksei V., Ph. D. in Eng., Head of the Republican Computer Center of Mechanical Engineering, Joint Institute of Mechanical Engineering of the NAS of Belarus, Minsk, Republic of Belarus, This email address is being protected from spambots. You need JavaScript enabled to view it.">This email address is being protected from spambots. You need JavaScript enabled to view it.

RUBTSOV Аleksander V., Head of Strength Laboratory of the Test Center, Joint Stock Company “Minsk Automobile Plant” — Holding Management Company of “BelavtoMAZ”, Minsk, Republic of Belarus, This email address is being protected from spambots. You need JavaScript enabled to view it.">This email address is being protected from spambots. You need JavaScript enabled to view it.

The actual guidelines for strength factors determination of the mostly loaded elements of truck front suspensions leaf springs are considered on the basis of computer modeling of fracture processes and material mechanical properties research. The comparison of simulation data with the results of traditional calculation and full-scale testing of leaf spring fragments is performed. The difference between the experimental values of fracture loads with the values obtained by computer simulation does not exceed 3.6  %. Fracture loads obtained using traditional dependencies are underestimated with respect to experimental values up to 2 times. This is due to the underlying assumptions aimed at the safety reserve of the structure. The proposed guidelines of leaf springs strength determination are used for the calculation of acting loads in the road blockers designing process.

truck, computer simulation, anti-RAM device, strength, leaf spring, bench tests, analytical calculation, impact interaction

• Subbotin I. Gruzovik khuzhe vzryvov: chto oznachaet stsenariy terakta v Nitstse [The truck is worse than explosions: what does the scenario of the terrorist attack in Nice mean]. Moskovskiy komsomolets. Elektronnoe periodicheskoe izdanie “MK.ru” [Moscow Komsomol. Electronic periodical “MK.ru”]. Available at: http://www.mk.ru/incident/2016/07/15/gruzovik-khuzhe-vzryvov-chto-oznachaet-scenariy-terakta-v-nicce.html (accessed 23 June 2017).
• Vrezatsya v lyudey na avtomobile – novaya taktika terroristov? [Is crashing people by a car a new terrorist tactic?]. Sovetskaya Belorussiya [Soviet Belarussia]. Available at: https://www.sb.by/articles/vrezatsya-v-lyudey-na-avtomobile-novaya-taktika-terroristov.html (accessed: 23 June 2017).
• Kraynov G. Obzor rossiyskogo rynka protivotarannykh ustroystv [Overview of the Russian market of anti-RAM devices]. Available at: http://www.secuteck.ru/articles2/sys_ogr_dost/obzor-rossiyskogo-rynka-protivotarannyh-ustroystv (accessed 23 June 2017).
• Shih Kwang Tay, Bryan Lim, Shu Herng Ng. Crash Impact Modelling of Security Bollard. 12th International LS-DYNA. Users Conference. Detroit, 2012. Available at: https://www.dynalook.com/12th-international-ls-dyna-conference/automotive22-b.pdf (accessed 23 June 2017).
• Ramon-Villalonga L., Enderich Th. Advanced Simulation Techniques for Low Speed Vehicle Impacts. 6. LS-DYNA Anwenderforum, Frankenthal 2007. Available at: https://www.dynamore.de/de/download/papers/forum07/forum07/crash/advanced-simulation-techniques-for-low-speed (accessed  23  June 2017).
• Ratul D. Sarmah, Christopher Y. Tuan. Three-Dimensional Security Barrier Impact Response Modeling. International Journal of Nonlinear Science, 2011, vol.11, no. 2, pp. 236–245.
• Shmialiou А.V., Lisovskiy E.V., Korotkiy V.S. Osnovy metodiki virtualnogo modelirovaniya ispytaniy kabin gruzovykh avtomobiley po trebovaniyam passivnoy bezopasnosti [Basics of the computer simulation procedure for commercial vehicle cab passive safety testing]. Mekhanika mashin, mekhanizmov i materialov [Mechanics of machines, mechanisms and materials], 2015, no. 3(32), pp. 64–72.
• Stati pro dorozhnye blokiratory [Articles about road blockers]. Company LLC “ANT”. Available at: http://www.blokiratory.ru/articl.htm (accessed: 23 June 2017).
• Stati pro dorozhnye blokiratory [Articles about road blockers]. Company ProminvestGROUP. Available at: http://www.promgroup.ru/zagraditelnie-prepyatstviya.html (accessed 23  June 2017).
• Regulation No. 93 of the Economic Commission for Europe of the United Nations (UN/ECE) — Uniform provisions concerning the approval of: I. Front underrun protective devices (FUPDs)   — II. Vehicles with regard to the installation of an FUPD of an approved type — III. Vehicles with regard to their front underrun protection (FUP). 2010, 18 p.
• Mamedov V. Podveski gruzovikov. Podveski s metallicheskim uprugim elementom [Truck suspension. Suspensions with metal elastic element]. Osnovnye sredstva [Fixed assets], 2002, no. 6. Available at: http://os1.ru/article/7098-podveski-gruzovikov (accessed 23 June 2017).
• Osepchugov V.V., Frumkin А.K. Avtomobil. Analiz konstruktsiy, elementy rascheta: uchebnik dlya studentov vuzov po spetsyalnosti “Avtomobili i avtomobilnoe khozyaystvo” [Car. Structures analysis, calculation elements: Textbook for University students in the specialty “Cars and automotive industry”]. Мoscow, Mashinostroenie Publ., 1989. 304 p.
• Parkhilovskiy I.G. Avtomobilnye listovye ressory [Car leaf springs]. 2nd ed. Мoscow, Mshinostroenie Publ., 1978. 232 p.
• State Standard 1497-84. Metally. Metody ispytaniy na rastyazhenie [Metals. Tensile testing methods]. Standartov Publ. 1984. 28 p.
• State Standard 14959-79. Prokat iz ressorno-pruzhinnoy uglerodistoy i legirovannoy stali. Tekhnicheskie usloviya [Carbon and alloy steel spring rolled products. Technical conditions]. Standartov Publ. 1979. 21 p.
• State Standard 9012-59. Metally. Metod izmereniya tvyerdosti po Brinellyu [Metals. Brinell hardness measurement method]. 1960. 45 p.
• Aleshkevich Е.L., Dyuzhev А.А., Ivchenko V.I., Kritskiy М.А., Levitskiy V.А., Petko V.I., Skok А.N., Kharitonchik S.V., Shmialiou А.V. Zagraditelnoe ustroystvo [The barrier device].Patent ЕА, no. 023489, 2016.
• Aleshkevich Е.L., Dyuzhev А.А., Ivchenko V.I., Kritskiy М.А., Levitskiy V.А., Petko V.I., Skok А.N., Kharitonchik S.V., Shmialiou А.V. Zagraditelnoe ustroystvo [The barrier device]. Patent RB, no. 20615, 2016.
• Aleshkevich Е.L., Dyuzhev А.А., Ivchenko V.I., Kritskiy М.А., Levitskiy V.А., Petko V.I., Skok А.N., Kharitonchik S.V., Shmialiou А.V. Zagraditelnoe ustroystvo [The barrier device].Patent RB, no. 3059, 2014.
• Aleshkevich Е.L., Dyuzhev А.А., Ivchenko V.I., Kritskiy М.А., Levitskiy V.А., Petko V.I., Skok А.N., Kharitonchik S.V., Shmialiou А.V. Zagraditelnoe ustroystvo [The barrier device].Patent RF, no. 93800, 2015.