Dynamic characteristics of underframe semi-active inerter-based suspended device for high-speed train based on LQR control

• Autorzy: Wang Yong , Li Hao-Xuan , Meng Hao-Dong , Wang Yang

Identyfikatory

DOI

10.24425/bpasts.2022.141722

• Języki publikacji: EN

Abstrakty

EN

The underframe passive inerter-based suspended device, based on the inerter-spring-damper vibration attenuation structure, could improve the dynamic performance of the train body, but its parameters are fixed and cannot meet the dynamic performance requirements under different operating conditions. Therefore, a semi-active inerter-based suspended device based on the linear quadratic regulator (LQR) control strategy is proposed to further enhance the dynamic performance. The rigid-flexible coupling vertical dynamic model of the train body and an underframe semi-active inerter-based suspended device are established. The structural parameters of the semi-active inerter-based suspended device are adjusted using LQR control strategy. Dynamic response of the system is obtained using the virtual excitation method. The dynamic characteristic of the system is evaluated using the Sperling index and compared with those of the passive and semi-active traditional suspended devices as well as the passive inerter-based suspended devices. The vertical vibration acceleration of the train body and Sperling index using the semi-active inerter-based suspended device is the smallest among the four suspended devices, which denotes the advantages of using the inerter and LQR control strategy. The semi-active inerter-based suspended device could decrease the vertical vibration acceleration of the train body and further suppress its elastic vibration in the lower frequency band, more effectively than the other three suspended devices. Overall, the semi-active inerter-based suspended device could significantly reduce elastic vibration of the train body and improve its dynamical performance.

Słowa kluczowe

EN

dynamic characteristics; high-speed train; inerter-based suspended device; LQR control; Sperling index

PL

charakterystyka dynamiczna; pociąg dużych prędkości; aktywne zawieszenie na bazie inertera; kontrola LQR; indeks Sperlinga

• Wydawca: Polska Akademia Nauk, Wydział IV Nauk Technicznych
• Czasopismo: Bulletin of the Polish Academy of Sciences. Technical Sciences
• Rocznik: 2022
• Tom: Vol. 70, nr 4
• Strony: art. no. e141722
• Opis fizyczny: Bibliogr. 42 poz., rys., tab.

Twórcy

autor

Wang Yong

• State Key Laboratory of Automotive Simulation and Control, Jilin University, Changchun 130022, China
• Automotive Engineering Research Institute, Jiangsu University, Zhenjiang 212013, China

• https://orcid.org/0000-0002-7489-7258

autor

Li Hao-Xuan

• Automotive Engineering Research Institute, Jiangsu University, Zhenjiang 212013, China

autor

Meng Hao-Dong

• School of Automotive Engineering, Changzhou Institute of Technology, Changzhou 213002, China

autor

Wang Yang

• State Key Laboratory of Automotive Simulation and Control, Jilin University, Changchun 130022, China

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Uwagi

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).