Design method for damping coefficient of vehicle body end transverse damper of high-speed rail vehicle

A technology of transverse shock absorbers and high-speed rails, applied in the fields of instruments, calculations, electrical digital data processing, etc., can solve problems such as the lack of theoretical design methods for the system, difficulties in dynamic analysis and calculation, etc.

Inactive Publication Date: 2015-12-09
SHANDONG UNIV OF TECH
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Problems solved by technology

However, according to the available information, it is very difficult to analyze and calculate the dynamics of the rail vehicle because it is a multi-degree-of-freedom vibration system. Most of the theoretical design methods are based on computer technology and multi-body dynamics simulation software SIMPACK or ADAMS/Rail to optimize and determine its size through solid modeling. Good dynamic performance, however, with the continuous increase of

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  • Design method for damping coefficient of vehicle body end transverse damper of high-speed rail vehicle
  • Design method for damping coefficient of vehicle body end transverse damper of high-speed rail vehicle
  • Design method for damping coefficient of vehicle body end transverse damper of high-speed rail vehicle

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Embodiment Construction

[0067] specific implementation plan

[0068] The present invention will be further described in detail through an embodiment below.

[0069] Four longitudinal shock absorbers at the end of the car body and one transverse shock absorber at the end of the car body are installed between two adjacent car bodies of a high-speed rail vehicle, that is, n=1, and the mass of a single car body is m 3 =63966kg, moment of inertia of shaking head Roll moment of inertia J 3θ =77200kg.m 2 ; Mass of each bogie frame m 2 =2758kg, Moment of inertia of shaking head Roll moment of inertia J 2θ =2212kg.m 2 ; the mass m of each round pair 1 =1721kg, Moment of inertia of shaking head Axle weight of each wheel W=150000N; lateral creep coefficient f of each wheel pair 1 =16990000N, longitudinal creep coefficient f 2 =16990000N; The longitudinal positioning stiffness K of each wheel set 1x =13.739×10 6 N / m, lateral positioning stiffness K 1y =4.892×10 6 N / m; the vertical equivalent sti...

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Abstract

The invention relates to a design method for the damping coefficient of a vehicle body end transverse damper of a high-speed rail vehicle, and belongs to the technical field of suspension of high-speed rail vehicles. As a seventeen-freedom-degree transverse vibration optimization design simulation model of the whole rail vehicle is set up, and irregularity in the railway direction and horizontal irregularity serve as input excitation, with the minimum root-mean-square value of vibration acceleration of vehicle body side roll motion as the design target, the optimal damping coefficient of the vehicle body end transverse damper is obtained through optimization design. It can be known through design examples and SIMPACK simulation verification that the damping coefficient value of the vehicle body end transverse damper can be obtained accurately and reliably through the method, and a reliable design method is provided for designing the damping coefficient of the vehicle body end transverse damper of the high-speed rail vehicle. By means of the method, the design level of a high-speed rail vehicle suspension system can be improved, traveling safety and stability of the vehicle are improved, product design and test cost can be reduced, and the international market competitiveness of the rail vehicles in China is enhanced.

Description

technical field [0001] The invention relates to a high-speed rail vehicle mount, in particular to a design method for the damping coefficient of a transverse shock absorber at the end of a high-speed rail vehicle body. Background technique [0002] The lateral shock absorber at the end of the car body is installed between two adjacent car bodies of the articulated or bogie-type high-speed rail vehicle, which can effectively control the sway of the car body and significantly increase the integrity and stability of the vehicle. However, according to the available information, it is very difficult to analyze and calculate the dynamics of the rail vehicle because it is a multi-degree-of-freedom vibration system. Most of the theoretical design methods are based on computer technology and multi-body dynamics simulation software SIMPACK or ADAMS / Rail to optimize and determine its size through solid modeling. Good dynamic performance, however, with the continuous increase of the sp...

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Application Information

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IPC IPC(8): G06F17/50
Inventor 周长城于曰伟赵雷雷
Owner SHANDONG UNIV OF TECH
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