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High-speed train set body elastic mode vibration control method

A high-speed EMU and elastic mode technology, which is applied in the direction of adaptive control, general control system, control/regulation system, etc., can solve the problems of high cost, complicated control method and difficult maintenance

Active Publication Date: 2016-08-03
TONGJI UNIV
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  • Summary
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So far, active suspension or semi-active suspension control methods are mainly used for the vibration control of railway vehicles, but these control methods are relatively complex, costly and difficult to maintain.

Method used

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  • High-speed train set body elastic mode vibration control method
  • High-speed train set body elastic mode vibration control method
  • High-speed train set body elastic mode vibration control method

Examples

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Embodiment

[0068] Such as figure 1 As shown, a method for controlling elastic modal vibration of a high-speed EMU car body is used to control the vibration of a high-speed EMU car body. The method includes the following steps:

[0069] S1. Obtain the solid model of the vehicle body, analyze the vibration of the vehicle body, obtain the energy distribution of the elastic mode vibration, and determine the target mode of the vehicle body vibration control; the determined target mode of the vehicle body vibration control can be a certain order mode , and can also be certain modes.

[0070] This step S1 specifically includes the following steps:

[0071] S1.1. Obtain the solid model of the car body, perform finite element modal analysis on the solid model, and determine the elastic modal frequency of the car body. The finite element model is in the ready state and there is no hanging equipment under the car;

[0072] S1.2. Establish a rigid-flexible coupled dynamic model of the car body inc...

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Abstract

The invention relates to a high-speed train set body elastic mode vibration control method. The method comprises the following steps: S1, a train set body entity model is acquired, elastic mode vibration energy distribution is acquired, and a train set body vibration control target mode is determined; S2, mounting positions of multiple bottom suspension devices are determined, and an equivalent modal mass of the train set body vibration control target mode located at each bottom suspension device mounting position is determined; S3, natural frequency and a damping ratio of a vibration reduction system for each bottom suspension device are determined; and S4, transverse stiffness, vertical stiffness and a damping coefficient of the vibration reduction system for each bottom suspension device are determined. Compared with the prior art, the method of the invention does not need to change the original light-weight train set body structure but realizes control on multi-order elastic modal vibration of the train set body, the train set operation stability is enhanced, the train set riding comfort is improved, the principle is clear, the execution is convenient, the cost is low, and the method is applied to control on the high-speed train set body elastic mode vibration.

Description

technical field [0001] The invention relates to a method for controlling elastic mode vibration, in particular to a method for controlling elastic mode vibration of a car body of a high-speed EMU. Background technique [0002] Railway vehicle vibration control has always been a hot issue concerned by researchers and designers. Railway vehicle body vibration can be divided into two categories: rigid vibration and elastic vibration. The rigid vibrations that affect the vibration of the car body are the ups and downs of the car body, the nodding vibration of the car body, the shaking head vibration of the car body and the rolling vibration of the car body, and the frequencies of these vibrations are mainly concentrated below 2Hz. The elastic vibration that affects the vibration of the car body is mainly the low-order bending elastic modal vibration of the car body that is usually concentrated between 8 Hz and 15 Hz, such as the diamond-shaped deformation modal vibration of the...

Claims

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Application Information

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IPC IPC(8): G05B13/04
CPCG05B13/042
Inventor 宫岛周劲松杜帅妹孙文静孙煜夏张辉
Owner TONGJI UNIV
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