We formulate the problem of optimising the nominal values and tolerances of functional parameters of railway vehicle autocoupling shock absorber units. The model parameter optimisation is achieved with respect to a minimum of fatigue damage of the vehicle load-carrying structures such that strength reliability levels of these structures does not exceed known limits and all relevant conditions ensuring serviceability of the shock absorbers are satisfied.
railway vehicle autocoupling shock absorbers, quality of service, service reliability, longevity, load-carrying structure, functional parameters, tolerances, fatigue damage, between-maintenance period of operation, optimisation
1. Blochin, E. P. Train dynamics (non-stationary longitudinal vibrations) / E. P. Blochin, L. A. Manashkin. – M.: Transport, 1982. – 222 p.
2. Timashev, S. A. Reliability of large mechanical systems / S. A. Timashev. – M.: Science, 1982. – 184 p.
3. Braude, V. I. Probabilistic calculation methods of lifting equipment / V. I. Braude. – L.: Mechanical engineering, Leningrad Department, 1978. –232 p.
4. Kretov, M. V. About computer modeling of random variables / M. V. Kretov // Bulletin of KSU. Ser. Informatics and Telecommunications. – 2005. – Issue 1-2. – pp. 77-83.
5. Kuznezov, D.F. Stochastic differential equations: theory and practice of numerical solution / D.F. Kuznezov. – 4-th Edition, revised and supplemented – SPb.: Publishing House of Polytechnic University, 2010. – 816 p.
6. Schafter, T. Numerical Integration of SDEs: A Short Tutorial/ T. Schafter; Swiss Federal Institute of Technology in Lausanne (EPFL).– Switzerland, 2010. – http://infoscience.epfl.ch/record/143450/files/sde_tutorial.pdf].
7. Rzhanitsyn, A.R. Several issues of frame construction reliability/ A.R. Rzhanitsyn // Research on theoretical bases of building structures. – L.: LISI, 1983. – pp. 5-15.
8. Sobol, I.M. LP-searching and problems of optimum designing / I.M. Sobol, R. B. Statnikov // Problems of random search. – Riga: Zinatne, 1972. – No. 1. – pp. 117-135.
9. Sergeyev, V. I. To the question of the amount of machine computer experiments in the PLP-searching method / V. I. Sergeyev, R. B. Statnikov, I. T. Chernyavsky // Solution to the problems of applied mechanics with a computer. – M.: Science, 1978. – pp. 9-14.
10. Nikolsky, L.N. Influence of friction properties change of pairs friction from the relative sliding speed on service loss by shock absorbers using destruction fatigue indicator of the structure / L.N. Nikolsky, T. V. Selenskaya // Bibliographic index of VINITI "Deposit manuscripts" No. 2(112).– M.: ZNIITEITazhMash, 1981. – 15 p.
11. Calculation and design standards of rail wagons of 1520 mm railways of MR (unpowered). – M.: GOSNIIV-VNIIZhT, 1996. – 319 p.
12. Selenskaya, T.V. Optimization of functional parameters of railway vehicle autocoupling shock absorbers operating in randomly grouped freight trains / T.V. Selenskaya, E. I. Selensky // Production experience and scientific technological advancements in heavy engineering. Information collection. – M.: ZNIITEITazhMash, 1990. – Ser. 9. – Issue 21. – pp. 36-38.
