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Air radiation sensitivity testing method and system for transmission squeal and vehicle

A technology for sensitivity testing and transmission, which is applied in the testing of machines/structural components, testing of mechanical components, instruments, etc., and can solve problems such as radiation noise attenuation of transmission housings

Pending Publication Date: 2022-04-22
JIANGLING MOTORS
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  • Application Information

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Problems solved by technology

[0005] The invention provides an air radiation sensitivity test method, system and vehicle for transmission whistling, which are used to solve the technical problem of how to test and obtain the attenuation sensitivity performance of the transmission housing radiation noise from the automobile engine room

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  • Air radiation sensitivity testing method and system for transmission squeal and vehicle
  • Air radiation sensitivity testing method and system for transmission squeal and vehicle
  • Air radiation sensitivity testing method and system for transmission squeal and vehicle

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Embodiment Construction

[0044] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0045] see figure 1 , which shows a flow chart of an air radiation sensitivity test method for transmission whine of the present application.

[0046] like figure 1 As shown, the air radiation sensitivity test method of transmission whine specifically includes the following steps:

[0047] In step S101 , based on the noise test sensor, respective...

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Abstract

The invention discloses an air radiation sensitivity testing method and system for transmission squeal and a vehicle. The method comprises the steps that in-vehicle squeal noise data generated by a squeal simulation sound source and transmission squeal envelope surface noise data are obtained based on a noise testing sensor; performing energy averaging on the in-vehicle howling noise data to obtain an in-vehicle howling noise response curve; performing energy averaging on the transmission squeal envelope surface noise data to obtain a transmission squeal envelope surface noise response curve; and calculating a transmission squeal air radiation sensitivity curve according to the in-vehicle squeal noise response curve and the transmission squeal envelope surface noise response curve. And calculating a transmission howling air radiation sensitivity curve according to the acquired in-vehicle howling noise data and the transmission howling envelope surface noise data. The transmission howling radiation attenuation performance of a front-wheel-arranged automobile cabin on a transmission body can be tested.

Description

technical field [0001] The invention belongs to the technical field of automobile vibration and noise testing, and in particular relates to an air radiation sensitivity testing method, system and vehicle of transmission whistling. Background technique [0002] The transmission is the core component for the power transmission of the car. The main components of the transmission to achieve power transmission are the gears on each shaft system. In the process of gear transmission, there will be a certain deviation between the actual position of the gear and the ideal position, which is called transmission error. The relative movement and transmission error between the gears will further generate the meshing force, resulting in an annoying noise, which is called transmission whine. Transmission whine is an order noise in which the noise frequency gradually increases as the engine speed increases. Howling sound is a kind of pure tone noise with medium and high frequency. Even i...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M13/028G01H11/06
CPCG01M13/028G01H11/06Y02T90/00
Inventor 李少杰钟秤平黄超勇陈清爽袁振松胡鹏陈宇轩罗轶超
Owner JIANGLING MOTORS