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Motor train unit bogie suspension system kinetic parameter optimization method and device

A technology of dynamic parameters and suspension system, which is applied in the field of rail vehicles, can solve problems such as large limitations, and achieve the effects of satisfying stability, simplifying the optimization process, and improving calculation speed

Active Publication Date: 2019-06-07
CRRC QINGDAO SIFANG CO LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] The analysis relies more on the statistical results of massive state monitoring data, which has relatively large limitations

Method used

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  • Motor train unit bogie suspension system kinetic parameter optimization method and device
  • Motor train unit bogie suspension system kinetic parameter optimization method and device

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Embodiment 1

[0028] This embodiment proposes a dynamic parameter optimization method for the bogie suspension system of an EMU, and the execution subject is a computing device.

[0029] The above calculation equipment can be any electronic calculator such as a computer or a portable computer in the prior art that can optimize the dynamic parameters of the EMU bogie suspension system, and will not be repeated here.

[0030] see figure 1 As shown in the flowchart of the method for optimizing the dynamic parameters of the bogie suspension system of the EMU, this embodiment proposes a method for optimizing the dynamic parameters of the suspension system of the bogie of the EMU, including the following specific steps:

[0031] Step 100, establishing a multi-body dynamics model of the vehicle system.

[0032] In the above-mentioned step 100, the multi-body dynamics model of the above-mentioned vehicle system abstracts the vehicle into 15 rigid bodies such as 1 car body, 2 frames, 4 wheelsets an...

Embodiment 2

[0055] see figure 2 The schematic diagram of the structure of the dynamic parameter optimization device for the suspension system of the bogie of the EMU shown in the present embodiment proposes a dynamic parameter optimization device for the suspension system of the bogie of the EMU, including:

[0056] Establishment module 200, for establishing the multi-body dynamics model of the vehicle system;

[0057] An acquisition module 202, configured to acquire the actual vibration mode of the target vehicle;

[0058] Calculation module 204, for calculating the vibration mode of the multi-body dynamics model of the vehicle system based on the root locus method;

[0059] The optimization module 206 is used to determine the dynamic parameters of the suspension system in the target vehicle that need to be optimized when the calculated vibration mode of the multibody dynamics model of the vehicle system is consistent with the actual vibration mode of the target vehicle, and based on t...

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Abstract

The invention provides a motor train unit bogie suspension system kinetic parameter optimization method and device, and the method comprises the steps: building a vehicle system multi-body kinetic model; obtaining an actual vibration mode of the target vehicle; calculating a vibration mode of the vehicle system multi-body dynamic model based on a root locus method; and when the calculated vibration mode of the vehicle system multi-body dynamic model is consistent with the actual vibration mode of the target vehicle, determining suspension system dynamic parameters needing to be optimized in the target vehicle, and carrying out optimization operation on the suspension system dynamic parameters needing to be optimized in the target vehicle based on the vehicle system multi-body dynamic model. According to the motor train unit bogie suspension system kinetic parameter optimization method and device, massive data analysis is not needed, the optimization process of the suspension system ofthe motor train unit is simplified, and the calculation speed is increased.

Description

technical field [0001] The invention relates to the technical field of rail vehicles, in particular to a method and a device for optimizing dynamic parameters of a bogie suspension system of an EMU. Background technique [0002] At present, the state of the suspension system directly affects the dynamic performance requirements such as the safety, stability and comfort of the EMU operation. In order to ensure the dynamic performance requirements of the suspension system, the parameters of each device in the suspension system of the EMU can be monitored and analyzed. [0003] On-line monitoring technology is an important means to judge the dynamic performance requirements of the suspension system during the operation of EMUs. It is necessary to monitor the suspension system assembled in the EMU in real time and collect the parameters of each component in the suspension system, and optimize and analyze the collected parameters. [0004] The analysis relies more on the statis...

Claims

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Application Information

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IPC IPC(8): G06F17/50
CPCY02T10/40Y02T90/00
Inventor 杨东晓冯永华黄照伟张志波李贵宇
Owner CRRC QINGDAO SIFANG CO LTD
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