Analytical formulae and applications of vertical dynamic responses for railway vehicles

Yu, Yuewei (avtor), Song, Yunpeng (avtor), Zhao, Leilei (avtor), Zhou, Changcheng (avtor)

To effectively improve the estimated level of railway vehicles’ vertical dynamic responses and provide a more suitable reference for the selection of its secondary suspension damping parameter, this paper has derived the root mean square values analytical formulae of the car body vertical acceleration, the secondary suspension vertical stroke, and the axle box vertical action force for railway vehicles under the random excitation of the track closer to the actual track characteristics. The correctness of the analytical formulae is verified by testing a real vehicle. Then, according to the analytical formulae derived, an analytical design method of the optimal damping ratio for the secondary suspension system is constructed based on the multi-objective programming and single-objective interval constraint analysis, which can be used to find the best trade-off for conflicting performance indices, such as ride comfort, running smoothness, and running safety, and the influences of the system parameters on the optimal damping ratio are analysed. This research can effectively characterize the vertical vibration response of railway vehicles and provide an effective reference for the initial design of the railway vehicle secondary suspension damping parameter.

• Jezik: Angleški jezik
• Ključne besede: railway vehicle, vertical dynamic response, model deduction, damping parameter design, optimal compromise
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: FS - Fakulteta za strojništvo
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Leto izida: 2023
• Št. strani: Str. 73-81
• Številčenje: Vol. 69, no. 1/2
• PID: 20.500.12556/RUL-144972
• UDK: 629.4:531.3
• ISSN pri članku: 0039-2480
• DOI: 10.5545/sv-jme.2022.375
• COBISS.SI-ID: 146607107
• Datum objave v RUL: 27.03.2023

Gradivo je del revije

• Naslov: Strojniški vestnik
• Skrajšan naslov: Stroj. vestn.
• Založnik: Zveza strojnih inženirjev in tehnikov Slovenije [etc.], = Association of Mechanical Engineers and Technicians of Slovenia [etc.
• ISSN: 0039-2480
• COBISS.SI-ID: 762116

Licence

• Licenca: CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by/4.0/deed.sl
• Opis: To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.

Sekundarni jezik

• Jezik: Slovenski jezik
• Naslov: Analitične formule in uporaba vertikalnega dinamičnega odgovora železniških vozil
• Ključne besede: železniško vozilo, vertikalni dinamični odgovor, izpeljava modela, projektiranje parametrov blaženja, optimalen kompromis, analiza vpliva stopnje blaženja