Train semi-active control method based on magneto-rheological fluid damper

A semi-active control and variable damper technology, applied in the direction of self-adjustment of axles, can solve the problems of large external energy consumption and deterioration of train running performance, and achieve a reduction in wear coefficient, overcoming the rapid deterioration of vehicle performance, and high reliability. Effect

Active Publication Date: 2017-08-15
BEIJING JIAOTONG UNIV
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  • Abstract
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  • Claims
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Problems solved by technology

However, the full active suspension system needs to consume a large amount of external energy and the train performance will deteriorate sharply after the system fails.

Method used

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  • Train semi-active control method based on magneto-rheological fluid damper
  • Train semi-active control method based on magneto-rheological fluid damper
  • Train semi-active control method based on magneto-rheological fluid damper

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Embodiment Construction

[0035] In order to illustrate the present invention more clearly, the present invention will be further described below in conjunction with preferred embodiments and accompanying drawings. Similar parts in the figures are denoted by the same reference numerals. Those skilled in the art should understand that the content specifically described below is illustrative rather than restrictive, and should not limit the protection scope of the present invention.

[0036] Such as figure 1 As shown, the semi-active train control method based on the magneto-rheological fluid damper provided in this embodiment includes the following steps:

[0037] S1. Use the gyroscope to obtain the shaking head angular velocity ω of the front and rear wheel pairs during the running of the train wf , ω wr and the angular velocity ω of the bogie b , the specific process is:

[0038] Such as figure 2 As shown, the gyroscope S installed on the front and rear wheels of the bogie respectively 1 , S ...

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Abstract

The invention discloses a semi-active train control method based on a magnetofluidic fluid damper, which includes the following steps: S1, using a gyroscope to obtain the angular velocity of the front and rear wheel pairs and the angular velocity of the bogie during the running of the train; S2, Perform data processing and calculation on the angular velocity of the front and rear wheels and the angular velocity of the bogie during the operation of the train, and obtain the relative angular velocity of the front and rear wheels relative to the bogie; S3, use the vehicle data bus MVB to obtain the train running S4. According to the relevant line information, determine the type of the train running section, and according to the train control strategy corresponding to the type of the train running section, realize the control of the train by controlling a plurality of longitudinal magneto-fluidic fluid dampers arranged on the train control. The technical scheme of the invention can effectively improve the stability of the train running in a straight line, increase the critical speed, and improve the curve passing ability of the train at the same time.

Description

technical field [0001] The invention relates to the field of train detection and control. More specifically, it relates to a semi-active train control method based on a magneto-rheological fluid damper. Background technique [0002] With the rapid development of my country's high-speed railway and urban rail transit system, the running speed of trains continues to increase. The speed-increased trains have exposed some new dynamic performance problems. The grades of some lines are quite different and are not easy to be modified due to conditions, so it is difficult to adapt to the further speed-up requirements of trains. In addition, suppressing vibrations by maintaining high-level infrastructure such as rails requires huge costs. In the face of the contradictions caused by the increasing vibration, shock and dynamic load of trains and lines, rail vehicle dynamics should start from ensuring safe and stable operation in order to improve fatigue resistance, reduce wear, prolo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B61F5/44
Inventor 魏秀琨贾利民朱明杨杰尹贤贤申丽李卓玥贺延芳王腾腾张晓中
Owner BEIJING JIAOTONG UNIV
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