CN103837595A - Device and method used for testing noise suppression performance of stone shock resistant water splash-proof materials - Google Patents

Device and method used for testing noise suppression performance of stone shock resistant water splash-proof materials Download PDF

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CN103837595A
CN103837595A CN 201210474095 CN201210474095A CN103837595A CN 103837595 A CN103837595 A CN 103837595A CN 201210474095 CN201210474095 CN 201210474095 CN 201210474095 A CN201210474095 A CN 201210474095A CN 103837595 A CN103837595 A CN 103837595A
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sample
ball
material
noise
microphone
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CN 201210474095
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Chinese (zh)
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CN103837595B (en )
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董国旭
张军
贾文宇
李传兵
曹石军
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重庆长安汽车股份有限公司
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Abstract

The invention discloses a device and a method used for testing noise suppression performance of stone shock resistant water splash-proof materials. The device comprises a sample piece, a sample piece clamp, a clamp pedestal, a steel ball, a ball falling track, a track pedestal, and microphones; the sample piece is used for bearing a material sample to be tested; the sample piece clamp is used for clamping edges of the sample piece, and is arranged on the clamp pedestal; the sample piece is arranged slantwise to the horizontal plane; the ball falling track is arranged vertically to the ground, and the lower end of the ball falling track is right opposite to the center of the sample piece; the steel ball is used for free falling along the ball falling track, and hitting the center of the sample piece; one microphone is arranged right ahead the point hit by the steel ball, and the other microphone is arranged aside the point and is in a horizontal plane with the point; the two microphones are connected to Head DIC6B acquisition front terminal (or other noise acquisition front terminals) for acquisition of noise data. Testing is carried out in full anechoic rooms or semi- anechoic rooms; the steel ball with appropriate weight is subjected to free falling along the ball falling track, the center of the sample pieces is hit, and noise data is collected at the same time. The device is simple in structure, and high in stability, and is easy for assembling. Influence on the sample piece is less; and the method is convenient for noise testing of sample pieces which are made of different stone shock resistant water splash-proof materials and are arranged in different modes.

Description

用于测试防石击、防溅水材料抑制噪声水平的装置及方法 For testing anti-stoning, splash materials apparatus and method for suppressing noise level

技术领域 FIELD

[0001] 本发明涉及汽车噪声控制领域,具体涉及测试防石击、防溅水材料抑制噪声水平的技术。 [0001] The present invention relates to the field of automotive noise control, particularly to test anti-stoning, splash noise suppression level of technical material.

背景技术 Background technique

[0002] 随着现代汽车技术的不断发展,汽车的振动噪声性能已成为汽车的重要性能指标之一。 [0002] With the continuous development of modern automotive technology, automotive noise and vibration performance has become one of the important performance indicators of the car. 汽车轮胎胎纹卷起的碎石敲击下车体产生的噪声以及轮胎溅水对下车体的冲击噪声严重影响车内乘员舒适性,防石击、防溅水材料(如PVC涂层、阻尼胶等)在车身上的应用能够缓冲碎石及水流对下车体的冲击,有效降低石击声和溅水声。 Tire tread tapping gravel rolled under vehicle body and the tire noise generated by splashing a serious impact on the vehicle body under impact noise occupant comfort, anti-stoning, splash water material (such as PVC coated, damping rubber, etc.) can be applied to the vehicle body and water gravel impact cushioning under the vehicle body, and effectively reduce the sound stoning splash. 但在整车的设计过程中,由于在车身上进行相关试验难度大、干扰因素多,难以量化的评价不同的防石击、防溅水材料以及不同的布置方式对噪声的抑制水平。 However, in the vehicle design process, as a result of the relevant test is difficult, interference by many factors, it is difficult to quantify the evaluation of the vehicle body different anti-stoning, splash-proof materials and different arrangements to suppress the noise level.

发明内容 SUMMARY

[0003] 本发明所要解决的技术问题是提供一种合理的测试防石击、防溅水材料抑制噪声水平的装置及方法。 [0003] The present invention solves the technical problem is to provide a reasonable hit preventing stone test, the noise level of the apparatus and method of inhibiting splash material.

[0004] 为解决上述技术问题,本发明采取如下技术方案; [0004] To solve the above problems, the present invention adopts the following technical solution;

[0005] 一种用于测试防石击、防溅水材料抑制噪声水平的装置,其包括样件、样件夹具、夹具座、钢球、落球轨道、轨道底座、传声器;所述样件用于承载被测试材料,所述样件夹具夹持样件边缘,并安装在夹具座上,样件与水平面倾斜布置;所述落球轨道安装在轨道底座上,落球轨道垂直于地面设置,下端正对样件的中心区域;所述钢球用于沿落球轨道自由落下,击打样件中心位置;所述传声器设置在钢球击打处正前方和侧水平方向,并连接至噪声采集前端,如Head DIC6B采集前端,用于采集噪声数据。 [0005] A test for anti-stoning, splash suppressing noise level means a material, which comprises a sample, sample jig, holders, balls, falling ball track, the track base, microphone; said sample with the carrier material is tested, the sample holder holding the edge of sample, and mounted on the clamp base, sample disposed inclined to the horizontal; the falling ball track rail mounted on the base, falling ball tracks disposed perpendicularly to the ground, the correct to the central region of the sample; ball drop along the ball track for free fall, the center position of the striking sample; ball striking the microphone disposed at a front side and a horizontal direction, and is connected to the front end of the acquisition noise, such as Head DIC6B collection front end for collecting noise data.

[0006] 所述样件夹具通过两侧的螺栓安装在夹具座的滑槽中,根据情况对样件夹具的高度和角度进行调整。 [0006] The jig mounting member by a bolt-like on both sides of the chute in the clip seat, adjust the height and angle of the clamp-like member according to the situation.

[0007] 所述样件与水平面倾斜布置角度在30°〜60°。 [0007] The sample is disposed inclined to the horizontal at an angle 30 ° ~60 °.

[0008] 所述夹持样件上承载被测试材料的方式是将PVC材料喷涂于样件正面,阻尼胶黏贴于样件背面。 [0008] clamping said carrier member is a way to test the sample material is sprayed on the PVC material sample positive damping rubber member is adhered to the back of the sample.

[0009] 所述传声器一个布置在钢球击打处正前方水平距离200mm处,高度等同于钢球击打处,另一个布置在钢球击打处左侧水平距离200mm处,高度等同于钢球击打处。 [0009] The microphones are arranged in a ball hitting the horizontal distance 200mm in front at a height equivalent to striking the ball, the other arranged on the left at a horizontal distance from the ball striking at 200mm, equivalent to the height of the steel at hitting the ball.

[0010] 所述传声器采用麦克风,所述落球轨道采用空心PVC管。 [0010] The microphone uses a microphone, using the track ball drop hollow PVC tube.

[0011] 进一步,本发明提出利用以上装置测试防石击、防溅水材料抑制噪声水平的方法,所述测试在全消声室或半消声室中进行,步骤如下: [0011] Further, the present invention provides a test apparatus with the above anti-stoning process water splash material suppressing noise level, the anechoic test chamber or in the semi-anechoic chamber, the following steps:

[0012] (I)将被测试材料设置到样件上,用样件夹具对样件进行固定, [0012] (I) will be set to the test material sample, sample of the sample is fixed by a jig,

[0013] (2)将夹持好样件的样件夹具通过螺栓固定于夹具座的滑槽中,并根据需要调整夹具与地面的倾斜角度; [0013] (2) Good clamping member clamps sample holders bolted to the chute, and the inclination angle adjustment jig with the ground, as necessary;

[0014] (3)将落球轨道固定在轨道底座上,并使落球轨道下端正对样件中心区域;[0015] (4)将一个传声器布置在钢球击打处正前方水平位置,高度等同于钢球击打处;经另一个传声器布置在钢球击打处左侧水平位置,高度等同于钢球击打处,传声器通过信号线连接测试前端; [0014] (3) the falling ball tracks fixed on the rail base, and the falling ball tracks to the central region of correct sample; [0015] (4) a microphone disposed in front of the ball hitting the horizontal position, height equivalent the steel ball striking; by striking the ball at the other microphone is arranged at a left horizontal position, at a height equivalent to a ball striking, the front end of the microphone is connected via a test signal line;

[0016] (5)根据测试材料选取合适质量的钢球从落球轨道顶端放入,钢球做自由落体运动击打在样件中心,记录下噪声数据,并进行后处理及分析。 [0016] (5) select the appropriate quality in accordance with the test material from the top of the ball falling into the track ball, the ball free fall hitting the center sample, under noise data recording, and post-processing and analysis.

[0017] 所述方法中,具体的被测试材料的设置方式是:将PVC材料喷涂于样件正面,阻尼胶黏贴于样件背面;所述样件与水平面倾斜布置角度在30°〜60°。 [0017] In the method, the particular embodiment is arranged that the test material: the material is sprayed on the sample PVC front damping rubber member is adhered to a back surface of the sample; said sample is disposed at an angle inclined to the horizontal and 30 ° ~60 °. 传声器的布置位置是:一个布置在钢球击打处正前方水平距离200mm处,另一个布置在钢球击打处左侧水平距离200mm处。 Arrangement microphone position is: striking a ball disposed at a horizontal distance 200mm in front of the other on the left side is disposed horizontally at a distance of 200mm at a ball striking. 钢球的选取是根据测试材料选取,质量为2g〜8g。 Selected ball is selected in accordance with the test material, the quality of 2g~8g.

[0018] 采用本发明所述的装置结构简单、装配容易、稳定性好、对样件干扰小,采用该装置及方法便于对采用不同防石击、防溅水材料以及不同布置方式的样件进行噪声测试。 [0018] The simple structure of the present invention, easy assembly, good stability, small interference on the sample, using the apparatus and method for facilitating sample using different anti-stoning, splash water and materials of different arrangements of noise test.

附图说明 BRIEF DESCRIPTION

[0019] 图1是测试防石击、防溅水材料抑制噪声水平的装置结构图: [0019] FIG. 1 is a test anti-stoning, splash suppressing device material structural view of the noise level:

[0020] 图2是夹具部分的结构示意图; [0020] FIG. 2 is a schematic view of the clamp portion;

[0021] 图3是样件的示意图; [0021] FIG. 3 is a schematic diagram of the sample;

[0022] 图4A和图4B是麦克风布置位置示意图。 [0022] FIGS 4A and 4B are schematic microphone arrangement position.

[0023] 图中:I样件,2样件夹具,3夹具座,4钢球,5落球轨道,6轨道支架,7轨道底座;8 [0023] FIG Where: I sample, sample 2 jig, holders 3, 4 balls, falling ball track 5, track holder 6, a base rail 7; 8

第一麦克风,9第二麦克风。 A first microphone, a second microphone 9.

具体实施方式 detailed description

[0024] 下面结合图1、图2、图3、图4A和图4B,对本发明实施进行详细说明。 [0024] below with reference to FIGS. 1, 2, 3, 4A and 4B, the embodiment of the present invention is described in detail.

[0025] 进行防石击、防溅水材料噪声水平测试时,在半消声室或全消声室中进行。 [0025] for anti-stoning, the noise level when the splash test material, in full or semi-anechoic chamber anechoic chamber.

[0026] 首先用样件夹具2夹持样件I (PVC材料喷涂于样件正面,阻尼胶黏贴于样件背面),样件夹具2四周均布间距为50mm的沉头螺栓孔(螺栓孔间距50mm是模拟白车身焊点间距),使用20颗ΦΙΟιήπι的内六角螺栓进行样件夹持固定。 [0026] First holding jig 2 sample I (PVC sample material is sprayed on the front side, the damping rubber member is adhered to the back of the sample), sample distribution all around the clamp 2 countersunk bolt hole spacing of 50mm (the bolt-like member 50mm hole spacing is simulated body in white spot pitch), the use of hex bolts 20 ΦΙΟιήπι sample is clamped and fixed.

[0027] 进一步将夹持好样件I的样件夹具2通过螺栓固定于夹具底座3上的滑槽中,并根据需要调整夹具与地面的倾斜角度,角度调整范围30°〜60°。 [0027] Good holding member further sample I is bolted to the clamp 2 clamps the base 3 on the chute, and adjust the tilt angle of the clamp with the ground if necessary, adjusting the angle range of 30 ° ~60 °.

[0028] 进一步将落球轨道5通过定位螺栓固定在轨道支架6上,再将落球轨道支架6固定至轨道底座7上,落球轨道5要垂直地面,并移到如图所示位置,即落球轨道5下端正对样件I中心位置。 [0028] Further the falling ball tracks 5 bolts by locating the rail holder 6, then the falling ball rail holder 6 is fixed to the rail base 7, drop ball tracks 5 to perpendicular to the ground and moved to the position shown, i.e., falling ball tracks correct the center position I of the sample 5 at.

[0029] 进一步将第一麦克风8布置在钢球击打处正前方水平距离200mm处,确保钢球4击打在样件上弹起后不会损伤麦克风,高度等同于钢球击打处;第二麦克风9布置在钢球击打处左侧水平距离200mm处,高度等同于钢球击打处(麦克风正对钢球击打处)。 [0029] The further microphone 8 is disposed in front of the first horizontal distance of 200mm at the striking of the ball, to ensure that the ball hitting the sample 4 does not damage the microphone bounce, at a height equal to the ball striking; a second microphone 9 arranged at the left side of 200mm from the ball hitting the horizontal, at a height equivalent to a ball hitting (hitting the ball at the microphone is on). 连接HeadDIC6B采集前端,用于采集噪声数据。 Connecting HeadDIC6B collection front end for collecting noise data.

[0030] 进一步选取合适质量的钢球4从落球轨道5顶端放入,钢球4做自由落体运动击打在样件I中心,记录下噪声数据并进行后处理及分析。 [0030] Further selection of suitable quality steel balls falling from the top of the ball 4 into the rail 5, 4 Falling ball hitting the center of sample I, the noise data recording and post-processing and analysis.

[0031] 其中,落球轨道5采用长度为2m的Φ 25mm空心PVC管,根据测试材料选取质量为2g〜8g钢球。 [0031] wherein, falling ball track 5 using a length of 2m Φ 25mm hollow PVC tubes, selected according to the quality of the test material 2g~8g ball.

Claims (10)

  1. 1.一种用于测试防石击、防溅水材料抑制噪声水平的装置,其特征在在于,包括样件、样件夹具、夹具座、钢球、落球轨道、轨道底座、传声器;所述样件用于承载被测试材料,所述样件夹具夹持样件边缘,并安装在夹具座上,样件与水平面倾斜布置;所述落球轨道安装在轨道底座上,落球轨道垂直于地面设置,下端正对样件的中心区域;所述钢球用于沿落球轨道自由落下,击打样件中心位置;所述传声器设置在钢球击打处正前方和侧水平方向,并连接至噪声采集前端,用于采集噪声数据。 A test for anti-stoning, splash water level of a noise suppressing material, characterized in that it comprises sample, sample jig, holders, balls, falling ball track, the track base, microphone; the for carrying the sample material to be tested, the sample holder holding the edge of sample, and mounted on the clamp base, sample disposed inclined to the horizontal; the falling ball track rail mounted on the base, falling ball tracks disposed perpendicularly to the ground , to correct the central region of the sample; ball drop along the ball track for free fall, the center position of the striking sample; ball striking the microphone disposed at a front side and a horizontal direction, and is connected to the noise collected front end for collecting noise data.
  2. 2.根据权利要求1所述的用于测试防石击、防溅水材料抑制噪声水平的装置,其特征在于,所述样件夹具通过两侧的螺栓安装在夹具座的滑槽中,根据情况对样件夹具的高度和角度进行调整。 The test for anti-stoning according to claim 1, a noise suppression level of splash material, characterized in that said clamp member is mounted by a bolt-like on both sides of the chute in the clamp holder, in accordance with where adjust the height and angle of the clamp-like member.
  3. 3.根据权利要求2所述的用于测试防石击、防溅水材料抑制噪声水平的装置,其特征在于,所述样件与水平面倾斜布置角度在30°〜60°。 For testing according to claim 2, the anti-stoning, a noise suppression level of splash material, wherein said sample is arranged inclined to the horizontal at angle of 30 ° ~60 °.
  4. 4.根据权利要求1、2或3所述的用于测试防石击、防溅水材料抑制噪声水平的装置,其特征在于,所述夹持样件上承载被测试材料的方式是将PVC材料喷涂于样件正面,阻尼胶黏贴于样件背面。 According to claim test for anti-stoning 1, 2 or 3, a noise level of inhibition of splash material, characterized in that the clamping member is loaded on the carrier material is a way to test PVC material sprayed on the sample positive, damping rubber adhesive on the back of the sample.
  5. 5.根据权利要求1、2或3所述的用于测试防石击、防溅水材料抑制噪声水平的装置,其特征在于,所述传声器一个布置在钢球击打处正前方水平距离200mm处,高度等同于钢球击打处,另一个布置在钢球击打处左侧水平距离200mm处,高度等同于钢球击打处。 The test for anti-stoning or claims 1 to 3, a noise level of inhibition of splash material, characterized in that said microphone is disposed in front of a ball hitting the horizontal distance 200mm at the height equivalent to striking the ball, the other is disposed at the left of the horizontal distance of 200mm at the ball hitting, striking the ball at the height equivalent.
  6. 6.根据权利要求5所述的用于测试防石击、防溅水材料抑制噪声水平的装置,其特征在于,所述传声器米用麦克风。 For testing according to claim 5, wherein the anti-stoning, a noise level of the material inhibiting splash water, wherein the microphone with a microphone m.
  7. 7.根据权利要求5所述的用于测试防石击、防溅水材料抑制噪声水平的装置,其特征在于,所述落球轨道采用空心PVC管。 For testing according to claim 5, wherein the anti-stoning, a noise level of the material inhibiting splash of water, characterized in that said hollow ball drop rail using PVC pipe.
  8. 8.利用权利要求1、2或3所述的装置测试防石击、防溅水材料抑制噪声水平的方法,所述测试在全消声室或半消声室中进行,步骤如下: (1)将被测试材料设置到样件上,用样件夹具对样件进行固定, (2)将夹持好样件的样件夹具通过螺栓固定于夹具座的滑槽中,并根据需要调整夹具与地面的倾斜角度; (3)将落球轨道固定在轨道底座上,并使落球轨道下端正对样件中心区域; (4)将一个传声器布置在钢球击打处正前方水平位置,高度等同于钢球击打处;经另一个传声器布置在钢球击打处左侧水平位置,高度等同于钢球击打处,传声器通过信号线连接测试如端; (5)根据测试材料选取合适质量的钢球从落球轨道顶端放入,钢球做自由落体运动击打在样件中心,记录下噪声数据,并进行后处理及分析。 8. The apparatus of claim test using anti-stoning 1, 2 or 3, splash suppressing noise levels in a material, the tests were conducted in a semi-anechoic chamber or an anechoic chamber, the following steps: (1 ) will be set to the test material sample, with a sample of fixed sample clamp, (2) good clamping member clamps sample holders bolted to the chute, and if necessary adjustment jig and the inclination angle of the ground; (3) the falling ball tracks fixed on the rail base, and the falling ball tracks to the central region of correct sample; (4) a microphone disposed in front of the ball hitting the horizontal position, height equivalent striking the steel ball; microphone arranged on the left via another ball hitting the horizontal position, at a height equivalent to a ball striking, such as a microphone connected to the test terminal via a signal line; (5) select the appropriate quality in accordance with the test material from the top of the steel ball falling into the track ball, the ball free fall hitting the center sample, the noise data record, and post-processing and analysis.
  9. 9.根据权利要求8所述的方法,其特征在于,其特征在于,所述被测试材料的设置方式是:将PVC材料喷涂于样件正面,阻尼胶黏贴于样件背面;所述样件与水平面倾斜布置角度在30°〜60° ;所述传声器一个布置在钢球击打处正前方水平距离200mm处,另一个布置在钢球击打处左侧水平距离200mm处。 9. The method according to claim 8, characterized in that, wherein the arrangement is that the test material: the material is sprayed on the sample PVC front damping rubber member is adhered to a back surface of the sample; the comp member disposed inclined to the horizontal at an angle 30 ° ~60 °; a microphone disposed in the ball hitting the horizontal distance 200mm in front of the other on the left side is disposed horizontally at a distance of 200mm at a ball striking.
  10. 10.根据权利要求9所述的方法,其特征在于,其特征在于,所述被测试材料的设置方式是:根据测试材料选取质量为2g〜Sg的钢球。 10. The method according to claim 9, wherein, wherein the arrangement is that the test material: mass of ball 2g~Sg selected according to the test material.
CN 201210474095 2012-11-20 2012-11-20 For testing anti-stoning, splash materials apparatus and method for suppressing noise level CN103837595B (en)

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