Simulation on following Performance of High-Speed Railway In Situ Testing System
Joint Authors
Zheng, Fei-Long
Zeng, Liang-Cai
Chen, Xin-Yuan
Source
Advances in Mechanical Engineering
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-05-27
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
Subgrade bears both the weight of superstructures and the impacts of running trains.
Its stability affects the line smoothness directly, but in situ testing method on it is inadequate.
This paper presents a railway roadbed in situ testing device, the key component of which is an excitation hydraulic servo cylinder that can output the static pressure and dynamic pressure simultaneously to simulate the force of the trains to the subgrade.
The principle of the excitation system is briefly introduced, and the transfer function of the closed-loop force control system is derived and simulated; that, it shows without control algorithm, the dynamic response is very low and the following performance is quite poor.
So, the improved adaptive model following control (AMFC) algorithm based on direct state method is adopted.
Then, control block diagram is built and simulated with the input of different waveforms and frequencies.
The simulation results show that the system has been greatly improved; the output waveform can follow the input signal much better except for a little distortion when the signal varies severely.
And the following performance becomes even better as the load stiffness increases.
American Psychological Association (APA)
Zheng, Fei-Long& Zeng, Liang-Cai& Chen, Xin-Yuan. 2013. Simulation on following Performance of High-Speed Railway In Situ Testing System. Advances in Mechanical Engineering،Vol. 2013, no. 2013, pp.1-11.
https://search.emarefa.net/detail/BIM-489896
Modern Language Association (MLA)
Zheng, Fei-Long…[et al.]. Simulation on following Performance of High-Speed Railway In Situ Testing System. Advances in Mechanical Engineering No. 2013 (2013), pp.1-11.
https://search.emarefa.net/detail/BIM-489896
American Medical Association (AMA)
Zheng, Fei-Long& Zeng, Liang-Cai& Chen, Xin-Yuan. Simulation on following Performance of High-Speed Railway In Situ Testing System. Advances in Mechanical Engineering. 2013. Vol. 2013, no. 2013, pp.1-11.
https://search.emarefa.net/detail/BIM-489896
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-489896