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Dynamic design method of high-speed bogie based on anti-snaking frequency band energy absorption mechanism

A dynamic design, bogie technology, applied in the direction of bogies, railway car body parts, transportation and packaging, etc., can solve problems such as loss of self-guidance ability of bogies

Inactive Publication Date: 2017-08-22
DALIAN JIAOTONG UNIVERSITY
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Problems solved by technology

Specifically, in the technical treatment of the main research issues, the ICE3 prototype design only relies on advance correction, and partially loses the self-guiding ability of the bogie

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  • Dynamic design method of high-speed bogie based on anti-snaking frequency band energy absorption mechanism
  • Dynamic design method of high-speed bogie based on anti-snaking frequency band energy absorption mechanism
  • Dynamic design method of high-speed bogie based on anti-snaking frequency band energy absorption mechanism

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Embodiment Construction

[0085] In order to more clearly illustrate the purpose, technical solutions and advantages of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0086] The dynamic design viewpoint is one of the main processing viewpoints of the present invention to the high-speed bogie and its instability problem, and it has the following 5 main reasons:

[0087] ①There is no handling stability without stability. In view of the restriction of tread braking on vehicle speed ≤ 140km / h, fast bogies need to adopt disc or wheel disc braking methods and their supporting technologies, such as ABS anti-lock technology, so the requirements for lateral stability performance of bogies are put forward . Otherwise, if the wheel pair snakes self-excited oscillation, such as figure 1 As shown, the actual rolling diameter difference increases rapidly, and the longitudinal force couple M z It will lead to instantaneous fai...

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Abstract

The invention discloses a high-speed bogie dynamic design method based on an anti-snake movement frequency band energy absorption mechanism. A high-speed train is viewed as a closed-loop system, and advanced correction is conducted on an instable snake movement oscillating phenomenon of a bogie by means of an adaptive control mode. According to an anti-snake movement matching principle, an optimal distribution theoretical scheme of the bogie is determined. A novel anti-snake movement damper using a double-flow control principle is selected and used, a technical implementation mode of the novel anti-snake movement damper is worked out by using an anti-snake movement series stiffness judging principle, anti-snake movement is restrained softly, or an expansion bag is added into an auxiliary cavity. The dynamic performance assessment should have three stable features of a high-speed bogie. In order to lower lateral coupling strength, a train body model state form is reorganized to analyze aluminum alloy train body lateral coupled oscillation inherent features, the lateral stiffness of a suspension point is determined according to a harmonic vibration reduction mechanism, according to a structural damping constraint effect, the damping optimum value of rubber proportions is selected, a bolt pre-tightening or deadweight wedge-caulking rubber suspension mode is used, and therefore desired stable robust performance of bogie optimal match is achieved.

Description

technical field [0001] The invention relates to a dynamic design method of a high-speed bogie, in particular to an anti-snaking frequency band energy-absorbing mechanism, an anti-snaking parameter optimal configuration and a technical realization thereof. Specifically, according to the technical characteristics and limitations of the ICE3 prototype, the bogie’s unstable hunting oscillation phenomenon is taken as its main research problem, and according to the anti-snaking matching principle, an optimal matching scheme for anti-snaking parameters is formulated, and necessary relevant technical measures are taken. To alleviate the negative effects of anti-snaking high-frequency impedance. Background technique [0002] The high-speed bogie must adopt the dynamic design point of view, take the bogie unstable snake oscillation phenomenon as its main research problem, and correctly understand the innovative technical characteristics and limitations of the ICE3 series bogies. In o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B61F5/00
CPCB61F5/00
Inventor 朴明伟兆文忠杨晶李佳洋刘强
Owner DALIAN JIAOTONG UNIVERSITY
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