Vehicle vibration performance optimization design method, device and equipment

By identifying the objects of interest in the vehicle vibration system and constructing the objective function, and optimizing the design parameters based on decoupling rate and energy purity, the problem of inaccurate analysis of vehicle vibration characteristics was solved, thereby improving the vehicle's vibration performance and design efficiency.

CN122365714APending Publication Date: 2026-07-10CHONGQING CHANGAN AUTOMOBILE CO LTD
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Patent Information

Application Number
CN202610482779.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-04-13
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

Existing technologies cannot accurately analyze the vibration characteristics of the whole vehicle, resulting in a lack of scientific basis for optimizing vehicle vibration performance design, making it difficult to improve the vehicle's noise, vibration and acoustic roughness performance, and the optimization design effect is limited.

Method used

By identifying the target vibration system, and based on the two key indicators of decoupling rate and energy purity, the vibration performance of the vehicle is optimized. The vibration modes and degrees of freedom of concern are clearly defined, an objective function integrating decoupling rate and energy purity is constructed, and the design parameters are optimized using a simulation model.

Benefits of technology

It enables precise assessment and optimization of vehicle vibration performance, improving vehicle ride stability, comfort, component lifespan and reliability, while reducing R&D costs and time.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application relates to a vehicle vibration performance optimization design method, device and equipment, and relates to the technical field of vehicles. The method comprises the following steps: determining at least one target object of a target vibration system; wherein the target vibration system is one of at least one vibration system built in a vehicle; a target target object in the at least one target object is used to represent a target target vibration mode under a target target degree of freedom; and vibration performance optimization design is performed on the vehicle based on a decoupling rate and energy purity of the target vibration system under the target target object; wherein the decoupling rate is a ratio of first vibration energy of the target vibration system under the target target object to second vibration energy of the target vibration system under the target target vibration mode; and the energy purity is a ratio of the first vibration energy to third vibration energy of the target vibration system under the target target degree of freedom. Therefore, the vibration performance of the vehicle can be comprehensively and accurately evaluated, and a scientific and detailed basis can be provided for optimization design.
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