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Low noise forward design method for rail vehicle

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

Active Publication Date: 2018-03-30
SOUTHWEST JIAOTONG UNIV
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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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  • Low noise forward design method for rail vehicle

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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. The low noise forward design method comprises the following steps of S1, determining a complete vehicle noise design target of the rail vehicle; S2, decomposing acoustic indexes of each component of the rail vehicle according to the complete vehicle noise design target; S3, conducting acoustic simulation according to thedecomposed acoustic indexes; S4, performing an acoustic test on each component of the rail vehicle, and comparing acoustic simulation results to obtain optimal parameters of each component of the rail vehicle; S5, according to the optimal parameters of each component of the rail vehicle, performing simulation analysis on the complete vehicle noise; S6, according to complete vehicle noise simulation analysis results, updating the acoustic indexes of each component of the rail vehicle to achieve the low noise forward design for the rail vehicle. The method solves the noise problem in the production process of the rail vehicle and achieves the predictability of the final noise result, avoids the reverse treatment for the noise problem, improves the effects 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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IPC IPC(8): G06F17/50
CPCG06F30/15G06F30/20G06F2119/10Y02T90/00
Inventor 张捷肖新标高阳金学松蒋文杰
Owner SOUTHWEST JIAOTONG UNIV
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