Vehicle noise index decomposition method, device and system for rail transit vehicle

Abstract

The invention discloses a vehicle noise index decomposition method, device and system for a rail transit vehicle and a computer readable storage medium. The vehicle noise index decomposition method comprises the steps that noise indexes of various noise components of the vehicle in an initial state are acquired; according to the noise indexes of the noise components, interior noise and exterior noise of the vehicle are calculated, and predicted values of the vehicle noise indexes are obtained; whether the predicted values of the vehicle noise indexes meet the corresponding preset conditions ornot is judged, and if yes, a next step is entered and the current noise indexes of the noise components in the vehicle are output; and if no, the noise indexes of the noise components corresponding to the vehicle noise indexes which do not meet the corresponding preset conditions are modified to update the noise components of the vehicle, and the step of acquiring the noise indexes of the noise components of the vehicle in the initial state is returned and performed until the predicted values of the vehicle noise indexes meet the corresponding preset conditions. The vehicle noise index decomposition method, device and system for the rail transit vehicle and the computer readable storage medium are conducive to improving vehicle performance and reducing the operation difficulty and costs of the vehicle in a later stage.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of rail transit, and in particular, to a method, device, system and computer-readable storage medium for decomposing vehicle noise indicators of rail transit vehicles. Background technique [0002] Rail transit vehicles, as a mass public transportation tool with large capacity, fast, safe, punctual, energy saving and environmental protection, have become an important part of public transportation in large and medium-sized cities. With the opening of rail transit lines in various large and medium-sized cities, people are paying more and more attention to the noise of the driver's space and the environment outside the car, and their requirements are also getting higher and higher. [0003] At present, the interior noise sources of rail transit vehicles include wheel-rail noise, traction system noise, air-conditioning noise, etc. By controlling the limits of each noise source and increasin...

AI Technical Summary

Problems solved by technology

However, noise control is a systematic project. There are many sources of noise inside and outside the vehicle, and the transmission path is complicated. Once the vehicle is manufactured, if the noise exceeds the standard, it will be difficult to remedy

[0004] In the prior art, the noise design of the whole vehicle is usually based on the previous actual vehicle test results and design experience to make human judgments, and does not decompose the noise indicators. The maintenance work is more difficult, requiring more manpower and material resources

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