Abstract
The work presented in this paper assesses the influence of flow restrictor diameter, rail irregularities, speed, structural damping, and structural stiffness on comfort indexes. The pneumatic suspension models that the authors have developed are succinctly abridged, and on board tests that support the models are shown. The models are used in conjunction with synthesized rail profiles in order to determine comfort indexes and assess the influence of suspension parameters. The results suggest the use of variable diameter configurations. However, comfort is also affected by the structural response of the vehicle frame. Low stiffness and low structural damping greatly reduce comfort. To assess the influence of structural damping and stiffness, the frame is represented as a uniform Euler-Bernoulli beam with complex elastic modulus and is analyzed in the frequency domain. The increase of comfort indexes as a consequence of stiffness reduction can be mitigated with the use of viscoelastic materials to increase structural damping.
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References
Pintado, P., Ramiro, C., Nieto, A.J., Morales, A.L., Chicharro, J.M.: The dynamic behavior of pneumatic vibration isolators. J. Vibr. Control 24, 4563–4574 (2018). https://doi.org/10.1177/1077546317730243
Zhou, J., Shen, G., Zhang, H., Ren, L.: Application of modal parameters on ride quality improvement of railway vehicles. Veh. Syst. Dyn. 46, 629–641 (2008). https://doi.org/10.1080/00423110802033049
Zhou, J., Goodall, R., Ren, L., Zhang, H.: Influences of car body vertical flexibility on ride quality of passenger railway vehicles. Proc. IMechE Part F: J. Rail Rapid Transit 223, 461–471 (2009). https://doi.org/10.1243/09544097JRRT272
Dumitriu, M., Cruceanu, C.: Influences of carbody vertical flexibility on ride comfort of railway vehicles. Arch. Mech. Eng. LXIV(2) (2017). https://doi.org/10.1515/meceng-2017-0014
ORE Question B176. Bogies with steeered or steering wheelsets. Report N\(^\circ \) 1, Specifications and preliminary studies, vol. 2. Specification for a bogie with improved curving characteristics, Utrecht, September (1989)
EN 12299. Railway applications - Ride comfort for passengers - Measurement and evaluation (2000)
Acknowledgements
The authors are grateful for the support received from National Project TRA–2017-83376-R entitled “Amortiguadores magnetoreologicos, absorsores dinámicos y paneles viscoelásticos para mejora del confort de vehículos ferroviarios con estructuras aligeradas y carga variable” financed by the MINECO (Spain). They would also like to show their gratitude to Patentes Talgo railway vehicle manufacturer for their comments and suggestions as well as for providing suspension componentes for the tests.
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Pintado, P., Ramiro, C., Morales, A.L., Nieto, A.J., Chicharro, J.M. (2020). High Speed Railway Vehicle Comfort. The Influence of Pneumatic Flow Restrictor Diameter, Rail Irregularities, Speed and Structural Damping and Stiffness. In: Klomp, M., Bruzelius, F., Nielsen, J., Hillemyr, A. (eds) Advances in Dynamics of Vehicles on Roads and Tracks. IAVSD 2019. Lecture Notes in Mechanical Engineering. Springer, Cham. https://doi.org/10.1007/978-3-030-38077-9_109
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DOI: https://doi.org/10.1007/978-3-030-38077-9_109
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