ASSESSMENT OF PASSIVE SAFETY INDICATORS OF BUSES DURING ROLL-OVER BASED ON COMPUTER SIMULATION

OMELUSIK Aleksey V., Junior Researcher of the Department of Computer Modeling and Virtual Testing 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., Deputy Director General for Research, 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.

SHUKUROV Alexander O., Junior Researcher of the Department of Computer Modeling and Virtual Testing of the Republican Computer Center of  Mechanical Engineering, Joint Institute of Mechanical Engineering of the NAS of Belarus, Minsk, Republic of Belarus

LITVINUK Pavel S., Junior Researcher of the Department of Computer Modeling and Virtual Testing 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.

The existing approaches of domestic and foreign researchers are considered in the field of simulation of the loading of bus frames with the calculation evaluation of the power structure for compliance with the requirements of passive safety during rollover. The criteria and the main ways to improve the quality of computer models, to reduce the duration of calculations are determined. The fundamentals of the methodology for computer simulation of bus tests are presented and described for compliance with the requirements of UN Regulation No. 66. An example of  the use of the proposed guidelines is given in the preparation of a computer model of a suburban bus to conduct a calculation evaluation of the superstructure using the ANSYS LS-DYNA finite element analysis software system. Preparation of the model is performed using the Ls-PrePost program.

superstructure, bus, passive safety, computer model, finite element analysis, dumping angle, dumping platform, moment of inertia, initial angular velocity, potential impact energy, UN Regulation No. 66

1. UNECE Regulation No. 66(02). Peresmotr 1. Edinoobraznye predpisaniya, kasayushchiesya ofitsialnogo utverzhdeniya krupno-gabaritnykh passazhirskikh transportnykh sredstv v  otnoshenii prochnosti ikh silovoy struktury [Revision 1. Uniform provisions concerning the approval of large passenger vehicles with regard to the strength of their superstructure]. Minsk, Gostandart Publ., Belorusskiy gosudarstvennyy institut standartizatsii i  sertifikatsii Publ., 2006. 74 p.
2. Kompyuternoe modelirovanie oprokidyvaniya avtobusa v sootvetstvii s trebovaniyami Pravil EEK OON No. 66 [Computer simulation of bus roll-over in accordance with the requirements of the UNECE Regulation No. 66]. Moscow, 2014. 14 p. Available at: http://lsdyna.ru/video/bus-capsizing/cruise.pdf (accessed 08 October 2015).
3. Rogov P.S. Razrabotka metodiki obespecheniya passivnoy bezopasnosti kuzovov avtobusov v usloviyakh oprokidyvaniya pri proektirovanii. Diss. kand. tekhn. nauk [Development of a  technique for ensuring passive safety of coach bodies under roll-over conditions in the design. Ph.D. Thesis]. Nizhny Novgorod, 2015. 189 p.
4. Orlov L.N., Rogov P.S., Vashurin A.S., Tumasov A.V., Feokistov N.F. Otsenka nesushchey sposobnosti karkasa kuzova avtobusa po rezultatam kompyuternogo modelirovaniya [The estimation of bus structure bearing capacity on basis of simulation results the results of computer simulation]. Trudy NGTU im. R.E. Alekseeva [Transactions of Nizhni Novgorod State Technical University n.a. R.Y. Alexeev], 2012, no. 3(96), pp. 150–156.
5. Orlov L.N., Tumasov A.V., Rogov P.S., Vashurin A.S. Otsenka passivnoy bezopasnosti avtobusa po rezultatam kompyuternogo modelirovaniya [Bus passive safety estimation by the results of computer simulation]. Sovremennye problemy nauki i  obrazovaniya [Modern problems of science and education], 2013, no. 3. Available at: http://www.science-education.ru/109-9423.
6. Rogov P.S., Orlov L.N., Zelenov M.Y., Shabrov R.N. Vliyanie osobennostey protsessa oprokidyvaniya avtobusa na deformatsii kuzova [Influence of the features of the bus rollover process on the body structure deformations]. Sovremennye problemy nauki i obrazovaniya [Modern problems of science and education], 2013, no. 6. Available at: www.science-education.ru/113-11603 (accessed 08 October 2015).
7. Gugliotta A., Vadori R., Montanini R., Bertorelli N. Structural crash analysis with ADAMS: a comparison between multibody and FEM approaches. Proc. 12th European ADAMS Users Conference. Paris, 1997.
8. Pankaj S.D. Rollover and roof crush analysis of low-floor mass transit bus. M.Sc. Thesis. Wichita, KS, 2006. 104 p.
9. Elitok K., Guler M.A., Bayram B., Stelzmann U. An Investigation on the Roll-Over Crashworthiness of an Intercity Coach, Influence of Seat Structure and Passenger Weight. Proc. 9th International LS-DYNA Conference. Dearborn, MI, 2006, pp. 17–30.
10. Pavlata P. Virtual Simulations of Bus Approval Tests according to European Standards. Proc. MSC.Software 2005 Virtual Product Development Conference. 2005.
11. ECBOS – Enhance Coach and Bus Occupant Safety. Madrid, 1999. 66 p. Available at: https://ec.europa.eu/transport/road_safety/sites/roadsafety/files/pdf/projects_sources/ecbos_final_report.pdf (accessed 02 December 2016).
12. Park S.J., Yoo W.S., Kwon Y.J. Rollover Analysis of a Bus Using Beam and Nonlinear Spring Elements. Proc. 9th WSEAS International Conference on Applied Mathematics. Istanbul, 2006, pp. 128–133.
13. Kaptanoğlu M., Kucuk O. Rollover crashworthiness of a  multipurpose coach. Proc. 7. Otomotiv Teknolojileri Kongresi, OTEKON 2014. Bursa, 2014, p. 48.
14. Omelusik A.V., Shmeliov A.V., Kononov A.G., Rubcov  A.V. Opredelenie parametrov polilineynoy modeli materiala i  modelirovanie plasticheskogo deformirovaniya balochnykh konstruktsiy mashin [Determining the parameters of a multilinear material model and modeling the plastic deformation of beam structures of machines]. Mekhanika mashin, mekhanizmov i  materialov [Mechanics of machines, mechanisms and materials], 2017, no. 2(39), pp. 19–27.
15. John O.H. LS-DYNA THEORY MANUAL. Livermore, Livermore Software Technology Corporation, 2006. 680 p. Available at: http://www.lstc.com/pdf/ls-dyna_theory_manual_2006.pdf (accessed 10 August 2018).