Integration of bio-inspired limb-like structure damping into motor suspension of high-speed trains to enhance bogie hunting stability
Heng Zhang, Liang Ling, Sebastian Stichel, Wanming Zhai
Integration of bio-inspired limb-like structure damping into motor suspension of high-speed trains to enhance bogie hunting stability
Hunting stability is an important performance criterion in railway vehicles. This study proposes an incorporation of a bio-inspired limb-like structure (LLS)-based nonlinear damping into the motor suspension system for traction units to improve the nonlinear critical speed and hunting stability of high-speed trains (HSTs). Initially, a vibration transmission analysis is conducted on a HST vehicle and a metro vehicle that suffered from hunting motion to explore the effect of different motor suspension systems from on-track tests. Subsequently, a simplified lateral dynamics model of an HST bogie is established to investigate the influence of the motor suspension on the bogie hunting behavior. The bifurcation analysis is applied to optimize the motor suspension parameters for high critical speed. Then, the nonlinear damping of the bio-inspired LLS, which has a positive correlation with the relative displacement, can further improve the modal damping of hunting motion and nonlinear critical speed compared with the linear motor suspension system. Furthermore, a comprehensive numerical model of a high-speed train, considering all nonlinearities, is established to investigate the influence of different types of motor suspension. The simulation results are well consistent with the theoretical analysis. The benefits of employing nonlinear damping of the bio-inspired LLS into the motor suspension of HSTs to enhance bogie hunting stability are thoroughly validated.
High-speed train / Hunting stability / Bio-inspired limb-like structure / Motor suspension / Nonlinear damping
[1.] |
|
[2.] |
|
[3.] |
|
[4.] |
|
[5.] |
|
[6.] |
|
[7.] |
|
[8.] |
|
[9.] |
|
[10.] |
|
[11.] |
Guo J, Shi H, Luo R et al (2021) Bifurcation analysis of a railway wheelset with nonlinear wheel–rail contact. Nonlin Dyn 104(2):989–1005
|
[12.] |
Zhang T, Dai H (2016) Bifurcation analysis of high-speed railway wheel-set. Nonlin Dyn 83(3):1511–1528
|
[13.] |
Yan Y, Zeng J (2018) Hopf bifurcation analysis of railway bogie. Nonlin Dyn 92(1):107–117
|
[14.] |
|
[15.] |
|
[16.] |
|
[17.] |
|
[18.] |
|
[19.] |
|
[20.] |
|
[21.] |
|
[22.] |
|
[23.] |
|
[24.] |
|
[25.] |
|
[26.] |
|
[27.] |
|
[28.] |
|
[29.] |
|
[30.] |
|
[31.] |
|
[32.] |
|
[33.] |
|
[34.] |
|
[35.] |
National Standardization Committee of the People’s Republic of China. GB/T 5599–2019, Specification for dynamic performance assessment and testing verification of rolling stock. National Standardization Press of the People’s Republic of China.
|
[36.] |
Zhang H, Ding X, Chang C et al (2022) A study on the mechanism of carbody shaking phenomenon of high-speed trains. In: Proceedings of the 27th Symposium of the International Association of Vehicle System Dynamics, IAVSD 2021. Saint Petersburg, pp 208–216
|
[37.] |
|
[38.] |
|
[39.] |
|
[40.] |
|
/
〈 | 〉 |