Influence of suspended equipment on the carbody vertical vibration behaviour of high-speed railway vehicles

• Autorzy: Dumitriu M.

Identyfikatory

DOI

10.1515/meceng-2016-0008

Warianty tytułu

PL

Wpływ wyposażenia zamontowanego w nadwoziu wagonu na charakterystyki drgań pionowych pojazdu szynowego kolei szybkobieżnych

• Języki publikacji: EN

Abstrakty

EN

The equipment mounted on the carbody chassis of the railway vehicles is a critical component of the vehicle in terms of ride comfort. The reason for that is their large mass, able to visibly influence the vibrations mode of the carbody. The paper examines the influence of the equipment upon the mode of vertical vibrations of the carbody in the high-speed vehicles, reached on the basis of the frequency response functions of the acceleration in three carbody reference points – at the centre and above the bogies. These functions are derived from the numerical simulations developed on a rigid-flexible coupled model, with seven degrees of freedom. As a rule, the results herein prove the influence of the equipment mounting mode (rigid or elastic), along with the speed regime, upon the level of vibrations in the carbody reference points, at the resonance frequency of the symmetrical bending mode. Similarly, it is also demonstrated how the equipment mass and the damping degree of the suspension system affect the level of the vibrations in the carbody.

PL

Wyposażenie zamontowane na podwoziu pudła wagonu kolejowego stanowi krytyczny składnik pojazdu gdy chodzi o komfort jazdy. Powodem jest jego znaczna masa, zdolna w istotny sposób wpływać na drgania pojazdu. W artykule badano wpływ wyposażenia na tryb drgań pionowych nadwozia wagonu kolei szybkobieżnych. Za podstawę przyjęto częstotliwościowe funkcje przyspieszenia wyznaczone w trzech punktach odniesienia – w środku pojazdu i ponad wózkami zwrotnymi. Funkcje te zostały wyznaczone na podstawie symulacji numerycznych opracowanych dla sprzężonego sprężysto-sztywnego modelu o siedmiu stopniach swobody. Otrzymane wyniki z reguły potwierdzają, że sposób zamontowania wyposażenia (sztywne lub sprężyste), wraz z warunkami prędkości jazdy, mają wpływ na poziom wibracji w wybranych punktach odniesienia na częstotliwości rezonansowej w symetrycznym trybie zgięciowym. Pokazano także jak masa wyposażenia i stopień tłumienia w systemie jego zawieszenia wpływają na poziom wibracji nadwozia.

Słowa kluczowe

EN

railway vehicle; flexible carbody; suspended equipment; vertical vibration; frequency response functions; geometric filtering effect

PL

pojazd szynowy; elastyczne nadwozie wagonu; wyposażenie zawieszone; drgania pionowe; funkcje odpowiedzi częstotliwościowej; zjawisko filtracji geometrycznej

• Wydawca: Komitet Budowy Maszyn PAN
• Czasopismo: Archive of Mechanical Engineering
• Rocznik: 2016
• Tom: Vol. LXIII, nr 1
• Strony: 145--162
• Opis fizyczny: Bibligr. 23 poz., rys., tab.

Twórcy

autor

Dumitriu M.

• Department of Railway Vehicles, University Politehnica of Bucharest, Bucharest, Romania

Bibliografia

• [1] Pombo J., Ambrósio J.: An alternative method to include track irregularities in railway vehicle dynamic analyses, Nonlinear Dynamics, 2012, Vol. 68, Iss. 1-2, pp. 161-176.
• [2] Sebeşan I., Mazilu T.: Vibraţiile vehiculelor feroviare (Vibrations of the railway vehicles), MatrixRom, Bucuresţi, 2010, (In Romanian).
• [3] Zheng X., Zolotas A.C., Goodall R.M.: Modeling of flexible-bodied railway vehicles for vibration suppression, ICSE, Coventry, UK, Sep. 2006.
• [4] Nie Y.Z., Zeng J., Li F.S.: Research on resonance vibration simulation method of highspeed railway vehicle carbody, International Industrial Informatics and Computer Engineering Conference (IIICEC 2015), pp. 1117-1121.
• [5] Cheli F., Corradi R.: On rail vehicle vibrations induced by track unevenness: Analysis of the excitation mechanism, Journal of Sound and Vibration, Vol. 330, 2011, pp. 3744-3765.
• [6] Dumitriu M.: On the critical points of vertical vibration in a railway vehicle, Archive of Mechanical Engineering, Vol. LXI, Number 4, 2014, pp. 609-625.
• [7] Carlbom P.: Carbody and Passengers in Rail Vehicle Dynamics, Doctoral Thesis, Division of Railway Technology, Department of Vehicle Engineering, Royal Institute of Technology (KTH), Stockholm, Sweden, 2000.
• [8] Tomioka T., Takigami T., Suzuki Y.: Numerical analysis of three-dimensional flexural vibration of railway vehicle car body, Vehicle System Dynamics, Vol. 44, Supplement, 2006, pp. 272-285.
• [9] Diana G., Cheli F., Collina A., Corradi R., Melzi S.: The development of a numerical model for railway vehicles comfort assessment through comparison with experimental measurements, Vehicle System Dynamics, Vol. 38, No. 3, 2002, pp. 165-183.
• [10] UIC 513 R: Guidelines for evaluating passenger comfort in relation to vibration in railway vehicle, International Union of Railways, 1994.
• [11] ENV 12299: Railway applications ride comfort for passengers measurement and evaluation, 1997.
• [12] Wu P.B., Xue S.H., Yang C.H.: Dynamic response of high-speed passenger car based on flexible carbody model. Journal of Traffic Transportation Engineering, Vol. 5, 2005, pp. 5-8.
• [13] Zeng J., Luo R.: Vibration analysis of railway passenger car systems by considering flexible carbody effect. Journal of the China Railway Society, Vol. 29, Iss. 6, 2007, pp. 19-25.
• [14] Zhou J., Goodall R., Ren L., Zhang H.: Influences of car body vertical flexibility on ride quality of passenger railway vehicles, Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit, Vol. 223, 2009, pp. 461-471.
• [15] Shi H.L., Luo R., Wu P.B., Zeng J., Guo J.Y.: Application of DVA theory in vibration reduction of carbody with suspended equipment for high-speed EMU, Science China Technological Sciences, Vol. 57, 2014, No. 7, pp. 1425-1438.
• [16] Shi H.L., Luo R., Wu P.B., Zeng J., Guo J.Y.: Influence of equipment excitation on flexible carbody vibration of EMU, Journal of Modern Transportion, Vol. 22, Iss. 4, 2014, pp. 195-205.
• [17] Luo G., Zeng J., Wang Q.: Identifying the relationship between suspension parameters of underframe equipment and carbody modal frequency, Journal of Modern Transportion, Vol. 22, Iss. 4, 2014, pp. 206-213.
• [18] Gong D., Zhou J.S., Sun W.J.: On the resonant vibration of a flexible railway car body and its suppression with a dynamic vibration absorber, Journal of Vibration and Control, Vol. 19, Iss. 5, 2012, pp. 649-657.
• [19] Wu H.C., Wu P.B.: Effect of equipment suspension stiffness on riding quality, Journal Noise Vibration Control, Vol. 32, Iss. 8, 2012, pp. 73-77.
• [20] Sun W., Gong D., Zhou J., Zhao Y.: Influences of suspended equipment under car body on highspeed train ride quality, Procedia Engineering 16, 2011, pp. 812-817.
• [21] Mazilu T.: Vibraţii (Vibrations), MatrixRom, Bucureşti, 2012, (In Romanian).
• [22] Dumitriu M.: Geometric filtering effect of vertical vibrations of railway vehicles, Analele Universităţii “Eftimie Murgu” Resiţa, no. 1, 2012, pp. 48-61.
• [23] Dumitriu M.: Considerations on the geometric filtering effect of the bounce and pitch movements in railway vehicles, Annals of Faculty Engineering Hunedoara – International Journal of Engineering, Tome XII, Fascicule 3, 2014, pp. 155-164.

Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.