CN107607333B - A kind of vehicle damping material vibration damping test method - Google Patents
A kind of vehicle damping material vibration damping test method Download PDFInfo
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- CN107607333B CN107607333B CN201710863720.4A CN201710863720A CN107607333B CN 107607333 B CN107607333 B CN 107607333B CN 201710863720 A CN201710863720 A CN 201710863720A CN 107607333 B CN107607333 B CN 107607333B
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Abstract
The present invention relates to a kind of vehicle damping material vibration damping test methods, include the following steps: that vehicle is connect by S1 with vibration excitor, make vibration source of the vibration excitor as vehicle；S2 installs vibrating sensor in the plate installation position of vehicle body and activity bit；Vibrating sensor is connect by S3 with ad converter, converts analog signals into corresponding digital signal；Ad converter is connected power amplifier by S4, and vibration signal is sent to power and puts amplifier progress signal amplification；Power amplifier is connected to processor by S5, is stored to vibration signal, and pre-stored data in comparison database；S6 obtains the comparing result of vibration signal, as a result normally then completes to detect；Results abnormity then issues prompt warning note.The present invention is capable of the effectiveness in vibration suppression parameter of quick obtaining vehicle damping material, can quickly judge whether to satisfy the criteria after comparing with standard parameter, looks forward to the detection method that manufacturing industry is provided convenience for vehicle.
Description
Technical field
The present invention relates to technical field of automobile detection, and in particular to a kind of vehicle damping material vibration damping test method.
Background technique
Vehicle can generate vibration in the process of moving, if undesirable can allow of damping material and multiplies interior driver
Visitor does not feel good.The vibration that Vehicular vibration is derived mainly from the vibration caused when Engine Excitation, is formed in traveling with cross-ventilation
The vibration generated with pavement friction, and Engine Excitation vibration can be reduced due to being originated from vehicle itself by filling damping material
The vibration sense of the driver and passenger that are transferred in cockpit, therefore it provides a kind of side for detecting vehicle damping material effectiveness in vibration suppression
Method is necessary.
Summary of the invention
The purpose of the present invention is aiming at the shortcomings in the prior art, provide a kind of vehicle damping material vibration damping test method.
To achieve the above object, the invention discloses following technical solutions:
A kind of vehicle damping material vibration damping test method, includes the following steps:
Vehicle is connect by S1 with vibration excitor, makes vibration source of the vibration excitor as vehicle；
S2 installs vibrating sensor in the plate installation position of vehicle body and activity bit；
Vibrating sensor is connect by S3 with ad converter, converts analog signals into corresponding digital signal；
Ad converter is connected power amplifier by S4, and vibration signal is sent to power amplifier and carries out signal amplification；
Power amplifier is connected to processor by S5, is stored to vibration signal, and is stored in advance in comparison database
Data；
S6 obtains the comparing result of vibration signal, as a result normally then completes to detect；Results abnormity then issues prompt alarm and mentions
Show.
Further, in the step S5, in comparison database when pre-stored data, by obtaining in a period of time
The mode of average value compare.
Further, it in the step S5, in comparison database when pre-stored data, is carried out pair by sample mode
Than.
Further, in the step S6, results abnormity then initially enters delay stage, and it is precisely right to carry out in delay stage
Than.
Further, in the delay stage, contrasting detection is sampled with 200-500Hz frequency.
A kind of vehicle damping material vibration damping test method disclosed by the invention, has the advantages that
Detection method disclosed by the invention is capable of the effectiveness in vibration suppression parameter of quick obtaining vehicle damping material, with mark
Quasi- parameter can quickly judge whether to satisfy the criteria after comparing, and look forward to the detection method that manufacturing industry is provided convenience for vehicle.
Detailed description of the invention
Fig. 1 is flow chart of the invention.
Specific embodiment
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
Core of the invention is to provide a kind of vehicle damping material vibration damping test method, in order to quickly examine the damping of vehicle vehicle
The effectiveness in vibration suppression of material.
Referring to Figure 1.A kind of vehicle damping material vibration damping test method disclosed by the invention, which is characterized in that including such as
Lower step:
Vehicle is connect by S1 with vibration excitor, makes vibration source of the vibration excitor as vehicle, vibration excitor is played the role of at this time
For the vibration mode of simulated engine, different vibration modes can be respectively configured in the vehicle with style different model, such as self-priming and
Turbo type engine, correspondingly, the engine of different displacements also matches different vibration modes；
S2 installs vibrating sensor in the plate installation position of vehicle body and activity bit, installation site include at least hood,
Covering for roofs, front panel, squab panel, front fender, rear fender, car door；
Vibrating sensor is connect by S3 with ad converter, converts analog signals into corresponding digital signal；
Ad converter is connected power amplifier by S4, and vibration signal is sent to power amplifier and carries out signal amplification；
Power amplifier is connected to processor by S5, is stored to vibration signal, and is stored in advance in comparison database
Data, pre-stored data include the interior vibration parameters for meeting production requirement and corresponding damping in database
Material category, model, deal；
S6 obtains the comparing result of vibration signal, as a result normally then completes to detect；Results abnormity then issues prompt alarm and mentions
Show.
In an embodiment of the present invention, in the step S5, in comparison database when pre-stored data, pass through
The mode for obtaining the average value in a period of time compares, specifically, the vibration signal of acquisition time t and time t+n second
It compares, wherein n=1,2,3 ....
In another embodiment of the invention, in the step S5, in comparison database when pre-stored data, lead to
Oversampling mode compares.
In an embodiment of the present invention, in the step S6, results abnormity then initially enters delay stage, is extending
Stage is precisely compared.
In another embodiment of the invention, precisely comparison is, in the delay stage, with 200-500Hz frequency into
Line sampling contrasting detection, after the completion of comparison, also to produce curve graph for reference convenient for intuitively observing.
Compared to the content introduced in background technique, the present invention is capable of the effectiveness in vibration suppression ginseng of quick obtaining vehicle damping material
Number, can quickly judge whether to satisfy the criteria after comparing with standard parameter, look forward to the detection that manufacturing industry is provided convenience for vehicle
Method.
The above is only a preferred embodiment of the present invention, rather than its limitations；Although should be pointed out that referring to above-mentioned each
Embodiment describes the invention in detail, those skilled in the art should understand that, it still can be to above-mentioned each
Technical solution documented by embodiment is modified, or equivalent substitution of some or all of the technical features；And this
A little modifications and replacement, do not make the essence of corresponding technical solution depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (2)
1. a kind of vehicle damping material vibration damping test method, which comprises the steps of:
Vehicle is connect by S1 with vibration excitor, makes vibration source of the vibration excitor as vehicle；
S2 installs vibrating sensor in the plate installation position of vehicle body and activity bit；
Vibrating sensor is connect by S3 with ad converter, converts analog signals into corresponding digital signal；
Ad converter is connected power amplifier by S4, and vibration signal is sent to power amplifier and carries out signal amplification；
Power amplifier is connected to processor by S5, is stored to vibration signal, and pre-stored number in comparison database
According to being compared by way of obtaining the average value in a period of time in comparison database when pre-stored data；
S6 obtains the comparing result of vibration signal, as a result normally then completes to detect；Results abnormity then issues prompt warning note；Knot
Fruit then initially enters delay stage extremely, is precisely compared in delay stage, precisely compares and is, in the delay stage, with
200-500Hz frequency is sampled contrasting detection, for convenient for intuitively observing, after the completion of comparison, formation curve figure is for reference.
2. a kind of vehicle damping material vibration damping test method according to claim 1, which is characterized in that the step S5
In, in comparison database when pre-stored data, compared by sample mode.
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| CN201710863720.4A CN107607333B (en) | 2017-09-22 | 2017-09-22 | A kind of vehicle damping material vibration damping test method |
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| CN201710863720.4A CN107607333B (en) | 2017-09-22 | 2017-09-22 | A kind of vehicle damping material vibration damping test method |
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| CN107607333A CN107607333A (en) | 2018-01-19 |
| CN107607333B true CN107607333B (en) | 2019-11-08 |
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| CN111601226B (en) * | 2020-05-20 | 2021-12-14 | 广东得胜电子有限公司 | Method for testing vibration reduction effect of microphone fixing seat |
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| JP3327518B2 (en) * | 1997-09-19 | 2002-09-24 | 株式会社豊田中央研究所 | Method of measuring damping characteristics of friction materials |
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| CN103728429B (en) * | 2013-12-25 | 2016-06-01 | 力合科技（湖南）股份有限公司 | On-line water quality monitoring method and Monitoring systems |
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| CN203869879U (en) * | 2014-05-07 | 2014-10-08 | 常州宝骑车辆配件有限公司 | Automobile shock absorber test system |
| CN204128784U (en) * | 2014-06-26 | 2015-01-28 | 华中科技大学 | A kind of device detecting damper vibration damping effect |
| CN104267104A (en) * | 2014-09-23 | 2015-01-07 | 柳州市兴拓工贸有限责任公司 | Method for detecting shock-absorption and noise-reduction performance of car damping material |
| CN204241356U (en) * | 2014-10-31 | 2015-04-01 | 辽宁石油化工大学 | A kind of instrument detecting damping material effectiveness in vibration suppression |
| CN205749173U (en) * | 2016-04-14 | 2016-11-30 | 吉林大学 | A kind of vibration-testing apparatus of damping material |
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