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A low-noise forward design method for rail vehicles

A technology of rail vehicle and design method, which is applied in the field of rail vehicles and can solve the problems of difficult vibration and noise reduction of rail vehicles.

Active Publication Date: 2020-08-04
SOUTHWEST JIAOTONG UNIV
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0005] Aiming at the above-mentioned deficiencies in the prior art, a low-noise forward design method for rail vehicles provided by the present invention solves the problem that it is difficult to reduce vibration and noise in the later stages of rail vehicles

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  • A low-noise forward design method for rail vehicles

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Embodiment Construction

[0039] The specific embodiments of the present invention are described below so that those skilled in the art can understand the present invention, but it should be clear that the present invention is not limited to the scope of the specific embodiments. For those of ordinary skill in the art, as long as various changes Within the spirit and scope of the present invention defined and determined by the appended claims, these changes are obvious, and all inventions and creations using the concept of the present invention are included in the protection list.

[0040] like figure 1 As shown, the low-noise forward design method for rail vehicles includes the following steps:

[0041] S1. Determine the vehicle noise design target of the rail vehicle;

[0042] S2. Decompose the acoustic index of each component of the rail vehicle according to the vehicle noise design target;

[0043] S3. Acoustic simulation is performed according to the decomposed acoustic index;

[0044] S4. Acou...

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Abstract

The invention discloses a low-noise forward design method for a rail vehicle, which comprises the following steps: S1, determining the vehicle noise design target of the rail vehicle; S2, decomposing the acoustic indicators of each component of the rail vehicle according to the vehicle noise design target S3, carry out acoustic simulation according to the acoustic index of decomposition; S4, carry out acoustic test to each part of rail vehicle, and obtain the preferred parameter of each part of rail vehicle by comparing the acoustic simulation results; S5, according to the preferred parameter of each part of rail vehicle, Carry out vehicle noise simulation analysis; S6. According to the vehicle noise simulation analysis results, update the acoustic index of the rail vehicle components, and realize the forward design of low noise of the rail vehicle. The invention realizes the designability of the noise problem in the rail vehicle manufacturing process and the predictability of the final noise result, avoids the reverse processing of the noise problem, improves the effect of vibration reduction and noise reduction, and saves manpower and material resources.

Description

technical field [0001] The invention relates to the field of rail vehicles, in particular to a low-noise forward design method for rail vehicles. Background technique [0002] Recently, when the domestic media introduced China's foreign relations, a key word - "high-speed rail diplomacy" frequently appeared. However, with the continuous increase of train speed, the noise problem of high-speed trains has become more and more prominent, and will become a key factor restricting the green and sustainable development of high-speed railways. Therefore, it is urgent to develop a low-noise forward design method for rail vehicles. [0003] For the noise problem of high-speed trains, the existing solutions are mostly post-treatment. That is to say, when designing and manufacturing high-speed trains, the acoustic design was not systematically considered. Instead, the noise problem was discovered after the manufacturing was completed or even after it was put into operation, and manpow...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/20G06F30/15G06F119/10
CPCG06F30/15G06F30/20G06F2119/10Y02T90/00
Inventor 张捷肖新标高阳金学松蒋文杰
Owner SOUTHWEST JIAOTONG UNIV