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Frictional screaming noise generation method and device

A technology of noise generation and generation device, which is applied in measurement devices, measurement of ultrasonic/sonic/infrasonic waves, instruments, etc., can solve problems such as poor reproducibility, impact on product development and maintenance, and impact on friction and scream mechanism research.

Inactive Publication Date: 2016-01-13
YANCHENG INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Noise can also reduce work efficiency, damage cardiovascular, nervous system, female physiological functions, etc.
[0003] Although there are many theories to describe the friction squeal mechanism, they are often based on the disc-pin friction squeal test device. The actual disc-block friction squeal mechanism is more complicated, the reproducibility effect is poor, and the Research on the mechanism of friction squeal, which in turn affects the development and maintenance of related products

Method used

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  • Frictional screaming noise generation method and device
  • Frictional screaming noise generation method and device
  • Frictional screaming noise generation method and device

Examples

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Embodiment Construction

[0023] The following specific examples further illustrate the present invention. A method for generating friction squeal noise of the present invention comprises the following steps:

[0024] (1) Connect the brake disc to the driving device, and the driving device can drive the brake disc to rotate;

[0025] (2) Set the back plate of the brake block on one end of the cantilever beam;

[0026] (3) Clamp the other end of the cantilever beam on the clamping and force applying device, the clamping and force applying device can drive the cantilever beam to move horizontally or / and vertically;

[0027] (4) move the cantilever beam and the brake block to the brake disc through the clamping and force applying device in step (3);

[0028] (5) Start the driving device to drive the brake disc to rotate. When the brake block at one end of the cantilever beam touches the brake disc, a frictional squeal noise is emitted. According to the test requirements, adjust the speed of the brake di...

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Abstract

The invention discloses a frictional screaming noise generation method and device. The method comprises the following steps that a brake disc is connected with a driving device which drives the brake disc to rotate; a brake block is arranged on one end of a cantilever beam; the other end of the cantilever beam is installed on a clamping and force applying device, and the cantilever beam and the brake block are moved to the brake disc; when the brake block is contacted with the brake disc, frictional screaming noise is generated; sound pressure of frictional screaming, rotating speed of rotation of the brake disc and extension length of the cantilever beam are measured; and the measured parameters are arranged and analyzed. The device comprises a machine frame, the cantilever beam, the clamping and force applying device, the brake block, the brake disc and the driving device. The driving device is arranged on the machine frame. The brake disc is connected with the driving device. The driving device can drive the brake disc to rotate. The brake block is arranged on one end of the cantilever beam close to the brake disc, and the other end of the cantilever beam is installed on the clamping and force applying device.

Description

technical field [0001] The invention relates to a method and device for generating friction scream noise. Background technique [0002] Friction screaming is a common natural phenomenon that widely exists in people's living environment. Since the frequency of friction scream noise is in the most sensitive area of ​​human ear to sound frequency (1-16kHz), the sound pressure level can reach above 100dB(A). Noise at a high sound pressure level can cause ear discomfort, and noise exceeding 115dB can cause deafness. Living in a noise environment above 80dB can cause deafness up to 50%. Noise can also reduce work efficiency, damage cardiovascular, nervous system, female physiological functions, etc. [0003] Although there are many theories to describe the friction squeal mechanism, they are often based on the disc-pin friction squeal test device. The actual disc-block friction squeal mechanism is more complicated, the reproducibility effect is poor, and the The research on th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01H17/00
Inventor 吕红明
Owner YANCHENG INST OF TECH
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