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Real-time monitoring method of high-speed train bogie serpentine motion based on model and rules

A high-speed train, real-time monitoring technology, applied in the direction of railway vehicle testing, etc., can solve the problems of bogie fault diagnosis and bogie judgment

Active Publication Date: 2016-12-28
CRRC QINGDAO SIFANG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The traditional method of monitoring the lateral vibration acceleration signal can only monitor and judge the external performance of the bogie. It can only be checked out when a major accident occurs, and the loss at this time is inevitable

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  • Real-time monitoring method of high-speed train bogie serpentine motion based on model and rules
  • Real-time monitoring method of high-speed train bogie serpentine motion based on model and rules
  • Real-time monitoring method of high-speed train bogie serpentine motion based on model and rules

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Embodiment Construction

[0027] The following is a further description of the present invention according to the accompanying drawings.

[0028] The invention discloses a real-time monitoring method for the serpentine motion of a high-speed train bogie based on models and rules, which includes a high-precision sensor 2 and a control system 8 installed on the bogie 1 . The control system 8 is composed of an optical fiber input interface device 3, a signal filtering device 4, a signal conditioning device 5, a digital signal input and output device 6 and a central processing unit 7 (see figure 1 ).

[0029] The high-precision sensor 2 collects the acceleration signal of the lateral running of the bogie 1, and transmits the acceleration signal to the optical fiber input interface device 3 in the control system 8 through an optical fiber. The device 5 converts the collected analog signal into a digital signal, transmits the digital signal to the central processing unit 7 through the digital signal input ...

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Abstract

The invention discloses a high-speed train steering rack snakelike motion real-time monitoring method based on a model and a rule. A high precision acceleration sensor is arranged on a steering rack framework. A horizontal acceleration signal in a steering rack operation process, which is acquired by the sensor, is sent to a control system device of a device cabin under a train through optical fiber transmission. The controller carried out signal processing on the signal. The parameter damping ratio xi which can evaluate the convergence ability of the steering rack is calculated. Whether the service life of the steering rack expires is judged, so as to carry out online monitoring on the snakelike motion structural instability of the steering rack.

Description

Technical field: [0001] The invention relates to a method for real-time monitoring of a high-speed train bogie, in particular to a real-time monitoring method for the serpentine motion of a high-speed train bogie based on models and rules. Background technique: [0002] The lateral stability of the bogie system is one of the main problems in the safe operation of the train. Once the system is snaking and unstable, its running quality will deteriorate sharply, the running stability will be greatly reduced, and even derailment will be caused. There are many factors that cause the lateral vibration of the bogie system. The first one is that the bogie has excessive amplitude and frequency of lateral vibration due to excessive external impact force; The structural instability of the bogie caused by the aging of the vibrator equipment, the change of the taper of the tread, and the error of the sensor, etc. When there is a certain impact force from the outside world, the ability to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M17/08
Inventor 王晗梁建英战成一赵长龙
Owner CRRC QINGDAO SIFANG CO LTD