Detection method for high-speed train operation dynamics performance state

A technology for traveling dynamics and high-speed trains, applied in the direction of railway vehicle testing, etc., can solve the problem of impossible to achieve complete observation of train dynamics, and achieve the effect of reliable transportation

Active Publication Date: 2014-03-26
CRRC QINGDAO SIFANG CO LTD
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Problems solved by technology

The test technology has very good reliability for the evaluation of vehicle dynamics, but at the same time, the test also has some obvious shortcomings. F

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  • Detection method for high-speed train operation dynamics performance state
  • Detection method for high-speed train operation dynamics performance state
  • Detection method for high-speed train operation dynamics performance state

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[0022] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments:

[0023] Such as figure 1 As shown, the method for detecting the operating dynamics performance state of high-speed trains according to the present invention combines field test technology with numerical simulation technology, and specifically includes the following steps:

[0024] Step A: Establish a numerical simulation model for the detection of train dynamics, and determine the dynamic response control threshold at each detection point of the train.

[0025] In the course of line operation, the vehicle system will be stimulated by track unevenness, which has obvious randomness, and the track unevenness as input to the system is generally given in the form of spectrum. For rail vehicles, there is a time difference between the random unevenness excitations of the same track on the front and rear wheels, and traditional random vibration algorithms are not...

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Abstract

The invention relates to a detection method for high-speed train operation dynamics performance state. The method comprises the following steps: A, establishing a numerical simulation model for train dynamics state detection and fixing dynamic response control thresholds of all detection points of a train, B, distributing and optimizing train dynamics state detection sensors, C, measuring dynamic response signals of all the detection points of the train during operation through the sensors, and analyzing and processing detected signal data, so as to obtain detection values of the dynamics state of all the detection points of the train, and D, comparing the detection values obtained in step C to the control thresholds obtained in step A, and further evaluating the dynamics state of the train. The method combines an on-line monitoring technology and a dynamics simulation technology, realizes the real-time detection of high-speed operation state, and provides technical support for safe and reliable transportation of the high-speed train.

Description

technical field [0001] The invention relates to a detection method of the running dynamic performance state of a high-speed train, in particular to a detection method of the train running dynamic performance combining an online monitoring technology and a dynamic simulation technology. Background technique [0002] The running dynamic performance state of high-speed trains is an important indicator of the running quality of railway vehicles. In some developed countries in North America and Europe, the running quality of railway vehicles is also used as an indicator for evaluating the safety of railway vehicles. Therefore, the dynamic performance of high-speed trains The detection has important practical significance. [0003] Generally speaking, there are two ways to test the dynamic performance of high-speed trains, one is to use experimental testing technology, and the other is to use numerical simulation technology. Experimental testing technology has very good credibili...

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Application Information

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IPC IPC(8): G01M17/08
Inventor 李鹏高宝杰丁叁叁田爱琴孙维光赵岩项盼
Owner CRRC QINGDAO SIFANG CO LTD
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