Tank head parameters assessment of influence on tank car boiler stress and strain state

Authors

  • S. V. Bespalko Department of «Wagons», Moscow State University of Railway Engineering (MIIT)
  • V. I. Bogachev Department of «Wagons», Moscow State University of Railway Engineering (MIIT)

DOI:

https://doi.org/10.15802/stp2013/9605

Keywords:

tank, boiler, tank head depth, capacity of vehicle, finite element method

Abstract

Purpose. The purpose of the investigation is to estimate such value of a tank head depth wherein the maximum capacity of vehicle is provided and a tank vessel durability meets the requirements. Methodo-logy. The problem solution was carried out with using  the finite element analysis program NASTRAN. The finite element model is a tank shell of the railway eight-wheel tank car of model 15-1443. The load was presented as pressure. The value was accepted equal 0,4 MPa. The finite element model strain-stress state was analyzed. The tank head depth changed ranging from 0,2 m to 1,5 m. Findings. The rational tank head depth was 0,47 m from the tank vessel durability condition. This allows to improve the basic tank car parameters. It means to increase the tank vessel volume and to increase  the capacity at 0,7 ton. Authors has investigated that an additional increase of the tank vessel volume and the vehicle capacity can be achieved when the tank head sheets thickness as high as 13 mm. In this case it is necessary to recognize that the rational tank head depth is 0,4 m. Tank capacity can be increase at 1 ton. Originality. This paper presents the method of analysis of the tank car volume increase. The tank car volume increase and thus а capacity of vehicle increase allows to improve the car productiveness. Calculations results allow to give the dependence of the maximum equivalent stresses in a tank head which the depth of the one change. Practical value. It is shown that the tank head depth reduction will allow to improve parameters of the existing railway tank when the tank vessel durability meets the requirements. Investigation results can be used when new tank cars are designed.

Author Biographies

S. V. Bespalko, Department of «Wagons», Moscow State University of Railway Engineering (MIIT)

Obraztsova st. 9, bld.9, Moscow, Russia, 127994

V. I. Bogachev, Department of «Wagons», Moscow State University of Railway Engineering (MIIT)

Obraztsova st. 9, bld.9, Moscow, Russia, 127994, e-mail vy-bogachev@yandex.ru

References

Kozlov M.P. Opredeleniye napryazheniy v obolochkakh tsilindricheskikh chastey kotlov tsistern [Stress calculation in the shells of cylindrical parts of tank-cars boilers]. Transport Urala - Transport of the Urals, 2009, no. 3 (22), pp. 71-76.

Medvedev V.P. Issledovaniye prochnostnykh kharakteristik slozhnykh obolochek vrashcheniya, primenyaemykh v tsisternostroyenii. Kand., Diss. [Research of strength characteristics of complex rotational shells applied in a tank car building. Cand. Diss]. Moscow, 1972. 215 p.

Bogomaz G.I., Naumenko N.E., Pshinko A.N., Myamlin C.V. Nagruzhennost vagonov-tsistern pri perekhodnykh rezhimakh dvizheniya poyezdov [Tank Car Loading in Transition Regimes of Train Operation]. Kyiv, Naukova Dumka Publ., 2010. 215 p.

Normy dlya rascheta i proyektirovaniya vagonov zheleznykh dorog MPS kolei 1520 mm (nesamokhodnykh) [Requirements of the calculation and the design of cars for railways with the gauge equal to 1520 mm from Ministry of Railways of the Russian Federation (for unpowered cars)]. Moscow, GosNIIV-VNIIZhT Publ., 1996. 319 p.

Pavlyuchenkov M.V. Vliyaniye nachalnykh nesovershenstv kotlov zheleznodorozhnykh tsistern na ikh napryazhenno-deformirovannoye sostoyaniye (The impact of the railway tank cars boilers initial imperfection on its stress and strain state). Zbіrnik naukovykh prats Ukrainskoi derzhavnoi akademii zalіznichnoho transportu - Proc. of Ukraine State Academy of Railway Transport, 2011, issue 123. pp. 136-141. Available at: http://www.nbuv.gov.ua/portal/natural/Znpudazt/2011_123/n123-136.pdf (Accessed 20 May 2012).

Putyato A.V. Raschet na prochnost kotla vagona-tsisterny s uchetom resheniya zadachi gidrouprugosti (The strength analysis of the tank car boiler including a solution of the hydro elasticity problem). Zbіrnik naukovykh prats Ukrainskoi derzhavnoi akademii zalіznichnoho transportu – Proc. of Ukraine State Academy of Railway Transport, 2009, issue 108. pp. 115-120. Available at: http://www.nbuv.gov.ua/portal/natural/Znpudazt/2009_108/n108-115.pdf (Accessed 20 May 2012).

Putyato A.V. Sovershenstvovaniye elementov konstruktsiy vagona-tsisterny s uchetom vzaimodeystviya s perevozimym zhidkim gruzom [Perfection of elements of designs of the tankcar taking into account interacting with a transported liquid cargo]. Sovremennyye tekhnologii. Sistemnyy analiz. Modelirovaniye − Modern technologies. System analysis. Modeling, 2010, no. 1 (25), pp. 113-122.

Rychkov S.P. MSC.visualNASTRAN dlya Windows [MSC.visualNASTRAN for Windows]. Moscow, NT Press Publ., 2004. 552 p.

Mohd Rapik Saat, Christopher P.L. Barkan Generalized railway tank car safety design optimization for hazardous materials transport: Addressing the trade-off between transportation efficiency and safety. Journal of Hazardous Materials, 2011, vol. 189, issues 1–2, 15, pp. 62-68.

Published

2021-04-06

How to Cite

Bespalko, S. V., & Bogachev, V. I. (2021). Tank head parameters assessment of influence on tank car boiler stress and strain state. Science and Transport Progress. Bulletin of Dnipropetrovsk National University of Railway Transport, (1(43), 133–138. https://doi.org/10.15802/stp2013/9605

Issue

Section

ROLLING STOCK AND TRAIN TRACTION