scholarly journals Dynamic Performance of Pile-supported Bridge-embankment Transition Zones Under High-speed Train Moving Loads

2016 ◽  
Vol 143 ◽  
pp. 1059-1067 ◽  
Author(s):  
Wei Li ◽  
Xuecheng Bian
Keyword(s):  
High Speed ◽  
Dynamic Performance ◽  
Moving Loads ◽  
High Speed Train ◽  
Transition Zones

A Study on the Method of Vibration Analysis for Korean High Speed Train by the On-Line Test

2006 ◽  
Vol 321-323 ◽  
pp. 1593-1596 ◽  
Author(s):  
Chan Kyoung Park ◽  
Ki Whan Kim ◽  
Jin Yong Mok ◽  
Young Guk Kim ◽  
Seog Won Kim
Keyword(s):  
Vibration Analysis ◽  
High Speed ◽  
Vibration Mode ◽  
Dynamic Performance ◽  
Railway Vehicle ◽  
High Speed Train ◽  
Acceleration Data ◽  
On Line ◽  
System Vibration ◽  
Line Test

The Korean High Speed Train (KHST) has been tested on the Kyongbu high speed line and the Honam conventional line since 2002. A data acquisition system was developed to test and prove the dynamic performance of the KHST, and the system has been found to be very efficient in acquiring multi-channel data from accelerometers located all over the train. Also presented in this paper is an analysis procedure which is simple and efficient in analyzing the acceleration data acquired during the on-line test of the KHST. The understanding of system vibration mode for a railway vehicle is essential to evaluate the characteristics of a dynamic system and to diagnose the dynamic problems of the vehicle system during tests and operations. Methods based on homogeneous linear systems are not realistic because real systems have nonlinear characteristics and are strongly dependent on environmental conditions. In this paper an efficient method of vibration analysis has been proposed and applied for the KHST to evaluate its vibration mode characteristics. The results show that this method is suitable to estimate the system vibration modes of the KHST.

Failure Effects of Anti-Hunting Damper on High-Speed Train

2013 ◽  
Vol 694-697 ◽  
pp. 90-94 ◽  
Author(s):  
Ji Min Zhang ◽  
Li Wen Man
Keyword(s):  
Dynamic Model ◽  
High Speed ◽  
Critical Speed ◽  
Dynamic Performance ◽  
High Speed Train ◽  
Multi Body ◽  
Body Dynamic

The multi-body dynamic model of the high-speed train is established in order to study the failure effects of anti-hunting damper. Four kinds of failure case of the anti-hunting damper are compared, specifically including: one anti-hunting damper of the front bogie is broken; two anti-hunting dampers of the front bogie are broken; three anti-hunting dampers of the front bogie are broken; all four anti-hunting dampers of the front bogie are broken. The results have shown: when only one anti-hunting damper is broken, the influence to the dynamic performance of the high speed train is small, but once two anti-hunting dampers or more out of work, the critical speed of the vehicle decreases much more and the curve-passing performance also become worse.

Effect of vehicle vibration environment of high-speed train on dynamic performance of axle box bearing

2018 ◽  
Vol 57 (4) ◽  
pp. 543-563 ◽  
Author(s):  
Zhiwei Wang ◽  
Weihua Zhang ◽  
Zhonghui Yin ◽  
Yao Cheng ◽  
Guanhua Huang ◽  
...  
Keyword(s):  
High Speed ◽  
Dynamic Performance ◽  
High Speed Train

Sensitivity Analysis of the Rectangular Trenches Employed in Suppression of the High-Speed Train-Induced Ground Vibrations

2010 ◽  
Author(s):  
Davood Younesian ◽  
Mehran Sadri
Keyword(s):  
High Speed ◽  
Vibration Reduction ◽  
Moving Loads ◽  
High Speed Train ◽  
Ground Vibrations ◽  
Infinite Domain ◽  
Aspect Ratios ◽  
Different Types ◽  
High Speed Trains ◽  
Train Speed

Ground vibrations generated by high-speed trains are studied in this paper. Open trenches are included in modeling and the problem is formulated using elasticity theory. The ground is modeled by a semi-infinite domain and the embankment with finite layers and the high-speed train is simulated by moving loads. The analytical solution is obtained in frequency domain and the peak particle velocity (PPT) is then achieved for different types of open trenches with different aspect ratios and distance from the track centerline. A parametric study is then carried out and effects of different parameters including the train speed and ground properties on vibration reduction factors are investigated.

The Dynamic Behavior of High Speed Train Using Magnetorheological Technology on the Curve Track

2015 ◽  
Vol 782 ◽  
pp. 210-218
Author(s):  
Hua Xia Deng ◽  
Lai Jun Zhou ◽  
Shi Yu Zhao ◽  
Wei Hua Li ◽  
Shuai Shuai Sun ◽  
...  
Keyword(s):  
Vibration Control ◽  
High Speed ◽  
Passive Control ◽  
Control Method ◽  
Dynamic Performance ◽  
Active Vibration Control ◽  
High Speed Train ◽  
Active Vibration ◽  
Curve Track ◽  
Turning Radius

The era of high speed railway has come and the most important issue of the high speed train is the safety, which is directly related to billions of families. One of the most serious threats to the safety of the high speed train is the vibration of train body at curve track, which may cause the train off the track. Semi-active vibration control method is a possible solution compared with active control method which has robust problem and passive control method which has efficiency issue. Magnetorheological technology is a typical semi-active vibration control method which has been widely used in the automobile, architectural construction and aerospace. The high speed train using magnetorheological technology has not been fully investigated especially for the dynamic performance at curve track. In this paper, a high-speed train model with MRF dampers is simulated by a combined ADAMS and MATLAB simulation. The dynamic performance of high speed train operating at different speeds and turning radius is investigated to reveal the mechanism of how the MRF damper affects the train’s stability and vibration. The results show that the semi-active suspension installed with MRF dampers substantially improves the stability and dynamic performance of the train at curve track.

scholarly journals Suspension Parameters Matching Design for Robust Hunting Stability of High-speed Train

2021 ◽  
Author(s):  
Guang Li ◽  
Yuan Yao ◽  
Yadong Song ◽  
Guosheng Chen ◽  
Kang Chen
Keyword(s):  
High Speed ◽  
Dynamic Performance ◽  
Stability Margin ◽  
High Speed Train ◽  
Suspension Parameters ◽  
Performance Indexes ◽  
Parameter Matching ◽  
Matching Design ◽  
Matching Rules ◽  
Hunting Stability

Abstract Hunting stability of high-speed train is an important dynamic performance for the design of bogie suspension parameters. An appropriate hunting stability margin is required for high-speed train. Besides, a remarkable ability to weaken the influence caused by the disturbance of bogie suspension parameters and wheel-rail contact parameters on hunting stability is also required. The matching design of bogie passive suspension parameters is an important means to ensure the train comprehensive stability. In this paper, the concept of robust hunting stability is proposed, and the indexes for suspension parameter robustness and wheel-rail contact equivalent conicity robustness are defined and chosen as the dynamic performance indexes for the bogie suspension parameters design. Design of Experiment (DOE) is used to search the suspension parameters to satisfy the defined robust hunting stability indexes. Vehicle linear stability analysis is performed based on a large number of combined random suspension parameters, and then the parameters satisfying the performance requirements are designed, from which the parameter matching rules are concluded based on the discrete statistical analysis. Using this method, the suspension parameters can be designed to satisfy the defined multiple vehicle dynamic performance indexes, instead of engineering experiences.

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