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In-vehicle noise optimization method based on genetic algorithm

A technology of in-vehicle noise and genetic algorithm, applied in multi-objective optimization, design optimization/simulation, calculation, etc.

Pending Publication Date: 2021-07-23
QINGDAO TECHNOLOGICAL UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The optimization of some methods reduces the noise inside the car, but there is still room for optimization

Method used

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  • In-vehicle noise optimization method based on genetic algorithm
  • In-vehicle noise optimization method based on genetic algorithm
  • In-vehicle noise optimization method based on genetic algorithm

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Embodiment Construction

[0016] Attached below Figure 1 to Figure 7 The present invention is further described in detail.

[0017] In one example, see figure 1 , which discloses a method for optimizing interior noise based on a genetic algorithm, comprising the following steps:

[0018] S100: Establish a vehicle interior noise prediction model;

[0019] S200: Establishing a response surface model;

[0020] S300: establishing a mathematical optimization model of the noise objective function;

[0021] S400: Applying a genetic algorithm to optimize the mathematical optimization model.

[0022] As far as this embodiment is concerned, taking a miniature car as an example, on the basis of the acoustic-solid coupling model of the car body, considering the influence of the engine left and right mount excitation on the noise inside the car, the sound pressure response surface of the target point is established to approximately replace the car body In the response process after being stimulated, different...

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Abstract

The invention discloses an in-vehicle noise optimization method based on a genetic algorithm. The method comprises the following steps: S100, establishing an in-vehicle noise prediction model; S200, establishing a response surface model; S300, establishing a mathematical optimization model of the noise objective function; and S400, optimizing the mathematical optimization model by applying a genetic algorithm. According to the method, the in-vehicle noise is optimized, and meanwhile it is guaranteed that the vehicle body mass is not increased and the first-order mode of the body in white is not reduced.

Description

technical field [0001] The disclosure belongs to the technical field of automobile engineering, and in particular relates to a method for optimizing interior noise of a vehicle based on a genetic algorithm. Background technique [0002] The noise level inside the car is an important index to measure the comfort of the car. If the noise in the car can be well predicted and optimized in the design stage of the car, the development cost can be reduced and the market competitiveness of the car can be improved. With the rapid development of computer technology, finite element technology has become an important means to improve the traditional design process, but only by optimizing the finite element model will take a lot of time and computer resources. And through the construction of response surface, combined with experimental design and optimization algorithm, the optimal design can be carried out quickly and effectively. The optimization of some methods has reduced the noise...

Claims

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Application Information

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IPC IPC(8): G06F30/15G06F30/27G06F111/06G06F119/10
CPCG06F30/15G06F30/27G06F2111/06G06F2119/10Y02T10/40Y02T90/00
Inventor 周伟李敏张西龙刘碧龙潘福全柳江
Owner QINGDAO TECHNOLOGICAL UNIVERSITY