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Analysis of improvement possibilities of traveling comfort with the application of simulations of tramway multibody model
Konferencja
Transcomp - XIV International Conference Computer Systems Aided Science, Industry and Transport
Języki publikacji
Abstrakty
W ramach podjętych prac przeprowadzono szereg symulacyjnych analiz własności dynamicznych modelu wielobryłowego pięcioczłonowego tramwaju. Jako cel przyjęto redukcję wartości wskaźnika zdefiniowanego do oceny komfortu podróżowania. Sparametryzowany model umożliwił zmianę wybranych charakterystyk układu zawieszenia traktowanych jako zmienne decyzyjne zadania poprawy własności modelu. Wartości przyspieszeń drgań zarejestrowane podczas przejazdów z zadanymi prędkościami posłużyły do wyznaczenia wartości współczynnika komfortu. W pracy przedstawiono wyniki analizy wrażliwości wskaźnika komfortu oraz wyznaczone konfiguracje parametrów układu zawieszenia, dla których zaobserwowano redukcję przyspieszeń drgań.
Within the scope of the work there have been performed a number of numerical analyses of dynamic properties of the multibody model of five-piece tramway. Reduction of value of index defined to assess the comfort of traveling has been assumed as the object of work. Parameterized model has allowed for the change of selected characteristics of the suspension system which are treated as decision variables for the task of improvement of the model properties. Values of vibration accelerations measured while vehicle run at assumed velocities have been used to calculate value of comfort index. In present work the results of sensitivity analysis for comfort index as well as found characteristics of suspension system for improved model are presented.
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Tom
Opis fizyczny
Pełny tekst na CD, Bibliogr. 14 poz., rys., tab.
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- Akademia Górniczo-Hutnicza im. Stanisława Staszica, Katedra Robotyki i Mechatroniki; 30-059 Kraków, al. Mickiewicza 30, tel.: + 48 12 617-36-40, fax.: +48 12 634-35-05, adam.martowicz@agh.edu.pl
Bibliografia
- [1] Beretta S., Braghin F., Bucca G., Desimone H.: Structural integrity analysis of a tramway: load spectra and material damage, Wear, 258, 2005, 1255–1264.
- [2] Box G.E.P., Draper N.R.: Empirical Model Building and Response Surfaces, New York, John Wiley & Sons, Inc. 1986.
- [3] Deb K., Gulati S.: Design of truss-structures for minimum weight using genetic algorithms, Finite elements in Analysis and Design, 37 (5), 2001, 447-465.
- [4] Dias J.P., Correa R.M.: Multiobjective optimization of multibody systems with genetic algorithms, Proc. of III European Conference on Computational Mechanics, Lisbon, June 5-8, 2006.
- [5] Gallina A., Martowicz A., Uhl T.: An application of response surface methodology in the field of dynamic analysis of mechanical structures considering uncertain parameters, Proc. of ISMA2006 Conference on Noise and Vibration Engineering, Leuven, Belgium, September 18-20, 2006.
- [6] Martowicz A., Kurowski P., Uhl T., Lasko G.: Robust design optimisation of the FE model of rail vehicle, Paper 1654 in Proceedings of WCSMO-8: 8th World Congress on Structural and Multidisciplinary Optimization, Lisbon, Portugal, June 1-5, 2009.
- [7] Martowicz A., Pieczara J., Uhl T.: Application of soft computing in uncertainty analysis carried out within structural dynamics, Computer Assisted Mechanics and Engineering Sciences - CAMES, 14, 2007, 293-305.
- [8] Martowicz A., Pieczonka L., Uhl T.: Assessment of dynamic behaviour of spot welds with uncertain parameters using genetic algorithms application, Proc. of III ECCM - European Conference on Computational Mechanics, Lisbon, Portugal, June 5-9, 2006.
- [9] Martowicz A., Stanciu I., Uhl T.: Uncertainty analysis for dynamic properties of MEMS resonator supported by fuzzy arithmetics, The International Journal of Multiphysics, 3 (3), 2009, 201-219.
- [10] Martowicz A., Uhl T.: Assessment of variation of natural frequencies of FE model based on the application of alpha-cut strategy and genetic algorithms, Finite Element in Analysis and Design, doi:10.1016/j.finel.2010.07.012, 2010.
- [11] Myers R.H., Montgomery D.C.: Response Surface Methodology process and product optimization using designed experiments, New York, John Wiley & Sons, Inc., 1995.
- [12] Uhl T., Chudzikiewicz A.: Analytical and experimental investigation of low floor tram dynamics, International Journal on Vehicle System Dynamics, 25, 2002, 702-713.
- [13] norma ORE B176 RP1. vol. 1: Preliminary studies and specifications, vol. 2: Specification for a bogie with improved curving characteristics, vol. 3: Specifications for a bogie with improved curving characteristics for body tilt, Utrecht, Netherlands, 1989.
- [14] norma UIC 513 Guidelines to evaluating passenger comfort in relation to vibration in railway vehicles, International Union of Railways, 1st edition, 1994.
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Bibliografia
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bwmeta1.element.baztech-article-BPGA-0001-0030