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Vehicle aerodynamic load determination method and device

A technology of aerodynamic load and determination method, applied in the field of rail transit, can solve the problems of heavy workload and high cost, and achieve the effect of efficient and accurate determination

Active Publication Date: 2021-06-08
CRRC QINGDAO SIFANG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present application provides a method and device for determining the aerodynamic load of a vehicle to solve the problem of large workload and high cost in determining the aerodynamic load data of the vehicle in the related art

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  • Vehicle aerodynamic load determination method and device
  • Vehicle aerodynamic load determination method and device
  • Vehicle aerodynamic load determination method and device

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Embodiment Construction

[0021] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and embodiments.

[0022] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiment of the application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the application. Obviously, the described embodiment is only It is an embodiment of a part of the application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0023] It should be noted that the terms "first" and "second...

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Abstract

The invention discloses a vehicle aerodynamic load determination method and device. The method comprises the following steps: acquiring appearance data of a to-be-detected vehicle; based on the shape data of the to-be-detected vehicle, determining a value of a free parameter contained in a preset shape factor, and obtaining a shape factor parameter value corresponding to the to-be-detected vehicle; and inputting the shape factor parameter value corresponding to the to-be-tested vehicle into the target model, and outputting aerodynamic load data corresponding to the to-be-tested vehicle. Through the method and the device, the problems of large workload and high cost of determining the aerodynamic load data of the vehicle in related technologies are solved.

Description

technical field [0001] The present application relates to the technical field of rail transit, in particular, to a method and device for determining aerodynamic load of a vehicle. Background technique [0002] With the continuous development of the rail transit system, the design speed of vehicles running on the track is getting higher and higher, such as the design speed of high-speed trains, urban rail vehicles, subway vehicles, etc. Therefore, aerodynamic design has become the key to the design of rail vehicles. [0003] In order to ensure the rationality of the aerodynamic design of rail vehicles, it is necessary to determine the aerodynamic values ​​corresponding to different vehicle shapes. In related technologies, the aerodynamic values ​​corresponding to the vehicle shape are determined by solving the NS equation. In order to ensure the aerodynamic The accuracy of numerical calculation requires fine modeling and a huge amount of calculation grids when solving NS equa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/15G06F30/27G06F30/28G06K9/62G01M17/08G01M9/00G06F113/08G06F119/14
CPCG06F30/15G06F30/27G06F30/28G01M17/08G01M9/00G06F2113/08G06F2119/14G06F18/214Y02T90/00
Inventor 姚拴宝丁叁叁陈大伟
Owner CRRC QINGDAO SIFANG CO LTD