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Railway vehicle noise calculation method and device and terminal equipment

A rail vehicle and calculation method technology, applied in computer-aided design, calculation, design optimization/simulation, etc., can solve the problem that the noise calculation method cannot meet the requirements in the bidding and conceptual design stage.

Active Publication Date: 2021-07-13
CRRC TANGSHAN CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of this, the embodiment of the present invention provides a rail vehicle noise calculation method, device and terminal equipment to solve the problem that the noise calculation method in the prior art cannot meet the requirements in the early bidding and conceptual design stages of the rail vehicle project

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  • Railway vehicle noise calculation method and device and terminal equipment
  • Railway vehicle noise calculation method and device and terminal equipment
  • Railway vehicle noise calculation method and device and terminal equipment

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Embodiment Construction

[0028] In the following description, specific details such as specific system structures, techniques such as specific system structures, such as specific system structures are presented in order to illustrate, in order to thorns the embodiments of the present invention. However, those skilled in the art will appreciate that the present invention may be implemented in other embodiments without these specific details. In other cases, detailed description of well-known systems, devices, circuits, and methods is omitted to prevent unnecessary details to prevent the description of the present invention.

[0029] In order to illustrate the technical solution of the present invention, the following will be described below.

[0030] figure 1 The implementation flow diagram of the track vehicle noise calculation method provided by the embodiment of the present invention is shown in detail.

[0031] Step S101, according to the vehicle's overall drawings, the sound source position and the i...

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Abstract

The invention is suitable for the technical field of railway vehicle noise calculation, and provides a railway vehicle noise calculation method and device and terminal device.The method comprises the steps that according to a vehicle overall drawing, a sound source position and an in-vehicle noise evaluation point, a vehicle body is subjected to region division in the vehicle running direction, and a plurality of independent calculation sub-regions are obtained; according to the incident sound energy of each independent calculation sub-region and the coupling loss factor between the adjacent independent calculation sub-regions, respectively calculating the sound energy of each independent calculation sub-region; and calculating the sound pressure level of each independent calculation sub-region according to the sound energy of each independent calculation sub-region. According to the method, a plurality of independent calculation sub-regions are obtained according to an overall drawing of a vehicle, and the sound pressure level of each independent calculation sub-region is calculated. A detailed design drawing of a vehicle is not needed, and noise calculation and evaluation can be quickly carried out in the early-stage bidding and conceptual design stages of a project.

Description

Technical field [0001] The present invention belongs to the technical field of railway vehicle noise calculation, and more particularly to an orbital vehicle noise calculation method, apparatus, and terminal device. Background technique [0002] With the rapid development of rail transit technology, rail transit vehicles have become one of the preferred vehicles that people travel. In addition to the operation safety and efficiency of the vehicle, ride comfort is increasingly focused on operating units and passengers. Among them, the noise in the car is one of the important factors affecting passengers and passengers 'comfort. Noise has caused passengers to fatigue, mood, seriously affect passengers' rest and ride, and even hurt in psychology and physiology. . [0003] In order to improve the ride comfort of the vehicle, the bidding documents and contracts of the vehicle will make clear requirements for the noise in the car, so the noise reduction work will penetrate the entire d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20G06F30/15G06F111/10G06F119/10
CPCG06F30/20G06F30/15G06F2119/10G06F2111/10Y02T90/00
Inventor 赵新利贾尚帅韩铁礼王兴民张健
Owner CRRC TANGSHAN CO LTD
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