CN104142250A - Vehicle tire noise testing system - Google Patents
Vehicle tire noise testing system Download PDFInfo
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- CN104142250A CN104142250A CN201410342651.9A CN201410342651A CN104142250A CN 104142250 A CN104142250 A CN 104142250A CN 201410342651 A CN201410342651 A CN 201410342651A CN 104142250 A CN104142250 A CN 104142250A
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- 238000012360 testing method Methods 0.000 title claims abstract description 51
- 238000010521 absorption reaction Methods 0.000 claims abstract description 4
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 8
- 206010038743 Restlessness Diseases 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 229920000742 Cotton Polymers 0.000 claims description 3
- 239000006096 absorbing agent Substances 0.000 claims description 3
- 239000011491 glass wool Substances 0.000 claims description 3
- 239000011229 interlayer Substances 0.000 claims description 3
- 238000002955 isolation Methods 0.000 claims description 3
- 238000012545 processing Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
The invention discloses a vehicle tire noise testing system which comprises a tire installing and loading device, a tire pavement testing and driving device, a noise testing and analytical processing device and a background noise processing device. The tire installing and loading device is mainly composed of a transverse rod controller, a load hydraulic cylinder, a main cylinder controller and a tested tire. The tire pavement testing and driving device comprises a simulated pavement, a pavement supporting rotary frame, a motor, a frequency converter, a driving belt, a supporting wheel, a thrust bearing, an inner supporting base, an outer supporting base, a sleeve base and a base. The noise testing and analytical processing device is composed of a microphone, a tripod, a data interface box, a data processor and a special tire noise testing system. The background noise processing device comprises a noise-proof shield and a noise absorption wall. The vehicle tire noise testing system is simple and compact in structure, low in device background noise and wide in testing speed range.
Description
Technical field
The present invention relates to a kind of device for testing vehicle noise, particularly a kind of vehicle tire noise test macro, the noise that main testing tire sends on different road surfaces.
Background technology
Along with increasing of expressway construction and automobile pollution, people's Travel Range is increasing, and people are just more and more in highway chance.At the automobile of running at high speed, tyre noise becomes the Main Noise Sources of automobile.In existing measuring technology, be mainly used in measuring six-freedom degree kinematic parameter and with the relation of ground six component, can not be for carrying out test and the research of tyre noise aspect.
Therefore, a kind of vehicle tire noise test macro need to be proposed, the noise that can produce travel middle tire and road surface effect is tested, thereby study different kinds of tyre material, tread contour etc., on different road surfaces, produces Noise Mechanism, for the automobile of running at high speed reduces tyre noise, provides experiment condition.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides a kind of vehicle tire noise test macro, device background noise is little, and test speed wide ranges and measuring accuracy are high, simple and compact for structure.
The technical solution adopted in the present invention is: a kind of vehicle tire noise test macro, comprise tire installation and charger, tire test road surface and drive unit, noise testing and APU, described tire is installed and charger is comprised of cross bar controller, load hydraulic cylinder, master cylinder controller and detected tyre, detected tyre is arranged on cross bar controller and guarantees and rotates flexibly on the simulated roadway of detected tyre in tire test road surface and drive unit, and load hydraulic cylinder imposes on detected tyre load under master cylinder controller action by cross bar controller;
Described tire test road surface and drive unit comprise simulated roadway, road surface supporting rotary frame, motor, frequency converter and pedestal, described simulated roadway is installed on the supporting rotary frame of road surface, motor outputting power drives road surface supporting rotary frame to rotate on pedestal by gear train, by Frequency Converter Control motor different rotating speeds, to realize the rotational speed of adjusting road surface supporting rotary frame, below the supporting rotary frame of road surface, be also provided with the supporting mechanism for bearing pressure;
Described noise testing and APU comprise microphone and data processor, microphone is arranged on the noise signal that a side of detected tyre produces for receiving detected tyre and simulated roadway relative motion process, and this signal is transferred to data processor processes by data-interface case, data processor is connected with master cylinder controller with frequency converter by wire respectively, described master cylinder controller is to load hydraulic cylinder continuous action after data processor sends instruction, and described frequency converter sends instruction by data processor and controls;
Also be provided with acoustic wall and the blimp of reflecting background while measuring for reducing microphone, described blimp is arranged on the outside of road surface supporting rotary frame, motor and gear train, the ground unrest isolation of sending when by road surface supporting rotary frame, motor and gear train action.
Further optimize, described supporting mechanism comprises that inner support seat, outer support seat and support wheel form, support wheel is arranged between inner support seat, outer support seat and road surface supporting rotary frame, and the pressure on the supporting rotary frame of road surface is applied on inner support seat and outer support seat support wheel by some.
Further optimize, described pedestal is comprised of fixed base plate and the support post being vertically set on fixed base plate.
Further optimize, described inner support seat is arranged on the support post of pedestal by receiver, is used for bearing the weight of road surface supporting rotary frame and simulated roadway inner side part.
Further optimize, described outer support seat is arranged on the fixed base plate of pedestal, is used for bearing the weight of road surface supporting rotary frame and simulated roadway Outboard Sections.
Further optimize, described road surface supporting rotary frame can be installed different simulated roadways, and is supported by thrust bearing.
Further optimize, be also provided with tripod, by tripod, be used for installment and debugging microphone height and orientation.
Further optimize, the cross section of described blimp is circular or square, and its interlayer material is any one in sound absorption cotton or glass wool.
Further optimize, described acoustic wall can be made wedge absorber or aperture resonant cavity.
Further optimize, described gear train is with any one in transmission, chain transmission or gear drive.
Beneficial effect: the invention provides a kind of vehicle tire noise test macro, comprise tire installation and charger, tire test road surface and drive unit, noise testing and APU, ground unrest treating apparatus, by tire, the tire that cross bar controller is installed different model and size is installed, and to master cylinder controller, load hydraulic cylinder loads tire, simulated roadway is installed on the supporting rotary frame of road surface, by Frequency Converter Control motor, realize different rotating speeds, its power drives road surface supporting rotary frame to rotate by driving-belt, the road surface supporting rotary frame support wheel that simulated roadway has been installed is applied to inner support seat and outer support seat by least 3 pairs of support wheels, finally be applied to pedestal, utilize the noise signal that microphone records to pass through data-interface case, data processor, noise measuring system carries out analyzing and processing, equipment motor, the ground unrest that thrust bearing etc. itself send is processed by blimp, reflecting background when acoustic wall reduces microphone measurement, thereby raising measuring accuracy, simple and compact for structure, device background noise is little, test speed wide ranges.
Accompanying drawing explanation
Fig. 1 is embodiment of the present invention structural representation;
Fig. 2 be Fig. 1 do not comprise noise-measuring system H to view.
Mark in figure: 1, data processor, 2, data-interface case, 3, tripod, 4, microphone, 5, detected tyre, 6, load hydraulic cylinder, 7, cross bar controller, 8, master cylinder controller, 9, receiver, 10, inner support seat, 11, simulated roadway, 12, acoustic wall, 13, blimp, 14, motor, 15, frequency converter, 16, gear train, 17, thrust bearing, 18, road surface supporting rotary frame, 19, support wheel, 20, outer support seat, 21, pedestal.
Embodiment
below in conjunction with accompanying drawing, embodiments of the invention are elaborated, the present embodiment be take technical solution of the present invention as prerequisite, provided detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
As shown in the figure, a kind of vehicle tire noise test macro, comprises tire installation and charger, tire test road surface and drive unit, noise testing and APU,
Described tire installation and charger are by cross bar controller 7, load hydraulic cylinder 6, master cylinder controller 8 and detected tyre 5 form, the tire of the different model that described detected tyre 5 is vehicles, detected tyre 5 is arranged on cross bar controller 7 and guarantees and rotates flexibly on the simulated roadway 11 of detected tyre 5 in tire test road surface and drive unit, load hydraulic cylinder 6 imposes on detected tyre 5 load by cross bar controller 7 under 8 effects of master cylinder controller, size by adjusting load is to simulate the noise producing under different operating modes, described cross bar controller 7 can adopt a rod component herein, its one end is connected with detected tyre and guarantees that tire is free to rotate, the top of rod component is provided with load hydraulic cylinder, under 8 effects of master cylinder controller, the telescopic end of load hydraulic cylinder is pressed on rod component and realizes detected tyre 5 imposed loads,
Described tire test road surface and drive unit comprise simulated roadway 11, road surface supporting rotary frame 18, motor 14, frequency converter 15 and pedestal 21, described simulated roadway 11 is installed on road surface supporting rotary frame 18, can can obtain the test result under different operating modes by changing different simulated roadways, motor 14 outputting powers also drive road surface supporting rotary frame 18 to rotate on pedestal 21 by gear train 16, by frequency converter 15, control motor 14 different rotating speeds to realize the rotational speed of adjusting road surface supporting rotary frame 18, below road surface supporting rotary frame 18, be also provided with the supporting mechanism for bearing pressure, this supporting mechanism is arranged on pedestal, the pressure that so, load hydraulic cylinder imposes on tire can act on pedestal by supporting mechanism, to guarantee road surface supporting rotary frame 18 stability of rotation in test process,
Described noise testing and APU comprise microphone 4 and data processor 1, the noise signal that the side that microphone 4 is arranged on detected tyre 5 produces for receiving detected tyre 5 and simulated roadway 11 relative motion processes, and this signal is transferred to data processor 1 processing by data-interface case 2, data processor 1 is connected with master cylinder controller 8 with frequency converter 15 by wire respectively, described master cylinder controller 8 is to load hydraulic cylinder 6 continuous actions after data processor 1 sends instruction, and described frequency converter 15 sends instruction by data processor 1 and controls motor;
Also be provided with acoustic wall 12 and the blimp 13 of reflecting background while measuring for reducing microphone, described blimp 13 is arranged on the outside of road surface supporting rotary frame 18, motor 14 and gear train 16, the ground unrest isolation of sending while being used for above-mentioned parts action, makes it can not pass to microphone.
In the present invention, in order to realize optimal effectiveness, described supporting mechanism comprises that inner support seat 10, outer support seat 20 and support wheel 19 form, support wheel 19 is arranged between inner support seat 10, outer support seat 20 and road surface supporting rotary frame 18, and the pressure on road surface supporting rotary frame 18 is applied on inner support seat 10 and outer support seat 20 support wheel 19 by some; Described pedestal 21 is comprised of fixed base plate and the support post being vertically set on fixed base plate; Described inner support seat 10 is arranged on the support post of pedestal 21 by receiver 9, be used for bearing the weight of road surface supporting rotary frame and simulated roadway inner side part, described outer support seat 20 is directly installed on the fixed base plate of pedestal, is used for bearing the weight of road surface supporting rotary frame and simulated roadway Outboard Sections.
In order to simulate the noise under different road conditions, can will different simulated roadways be installed on the supporting rotary frame of road surface, on road surface supporting rotary frame 18 support post by thrust bearing 17 supporting bases 21.
This programme, can also be provided with tripod 3, by tripod 3, be used for installment and debugging microphone 4 highly and orientation, can adopt the A-frame in photography, described microphone 4 is standard components, can be 1 inch, 1/2 inch, 1/4 inch, be not limited to this, noise signal can be passed to data processor 1 by data-interface case 2, described data processor 1, data-interface case 2 receive microphone 4 and transmit noise signal, and can carry out the analytic transformation conversion such as FFT, octave.
Described data processor 1 as herein described can be desk-top computer, and notebook, is not limited to this, and special-purpose noise measuring system is installed.
This programme, described road surface supporting rotary frame 18 is driven by motor 14, frequency converter 15, gear train 16, realize rotatablely moving of simulated roadway 11, described gear train can adopt belt drive for example cog belt, flat rubber belting, metal tape, also can adopt chain transmission or gear drive.
Further optimize this scheme, described blimp 13 cross sections can be circular, square, its material can be selected any material with soundproof effect, preferentially selecting blimp is double-decker, in its interlayer, can be sound absorption cotton or glass wool, be not limited to this, those skilled in the art can rationally convert according to principle described herein.
Further optimize this scheme, described acoustic wall 12 can be made wedge absorber, aperture resonant cavity, is not limited to this, and those skilled in the art can rationally convert according to principle described herein.
Further optimize this scheme, described tire test road surface and drive unit comprise that simulated roadway 11 is also rotary drum, and also flat rubber belting formula, is not limited to this, and those skilled in the art can rationally convert according to principle described herein.
The course of work is as follows: cross bar controller is installed the detected tyre of different model and size, and master cylinder controller, load hydraulic cylinder are loaded tire, simulated roadway is installed on the supporting rotary frame of road surface, by Frequency Converter Control motor, realize different rotating speeds, its power drives road surface supporting rotary frame to rotate by driving-belt, the gravity that the road surface supporting rotary frame of simulated roadway has been installed is applied to inner support seat and outer support seat by least 3 pairs of support wheels, inner support seat is applied to pedestal by receiver, and outer support seat direct effect is to pedestal; Microphone is arranged on tripod, utilize the noise signal that microphone records to be transferred on data-interface case by data line, the data processor that special-purpose noise measuring system has been installed carries out analyzing and processing to noise signal, and comprising the ground unrest that motor, thrust bearing etc. send, processes by blimp in device itself, reflecting background when acoustic wall reduces microphone 4 measurement, thereby the measuring accuracy of raising tyre noise.
The present invention does not narrate part for prior art.
Claims (10)
1. a vehicle tire noise test macro, comprises tire installation and charger, tire test road surface and drive unit, noise testing and APU, it is characterized in that:
Described tire is installed and charger is comprised of cross bar controller, load hydraulic cylinder, master cylinder controller and detected tyre, detected tyre is arranged on cross bar controller and guarantees and rotates flexibly on the simulated roadway of detected tyre in tire test road surface and drive unit, and load hydraulic cylinder imposes on detected tyre load under master cylinder controller action by cross bar controller;
Described tire test road surface and drive unit comprise simulated roadway, road surface supporting rotary frame, motor, frequency converter and pedestal, described simulated roadway is installed on the supporting rotary frame of road surface, motor outputting power drives road surface supporting rotary frame to rotate on pedestal by gear train, by Frequency Converter Control motor different rotating speeds, to realize the rotational speed of adjusting road surface supporting rotary frame, below the supporting rotary frame of road surface, be also provided with the supporting mechanism for bearing pressure;
Described noise testing and APU comprise microphone and data processor, microphone is arranged on the noise signal that a side of detected tyre produces for receiving detected tyre and simulated roadway relative motion process, and this signal is transferred to data processor processes by data-interface case, data processor is connected with master cylinder controller with frequency converter by wire respectively, described master cylinder controller is to load hydraulic cylinder continuous action after data processor sends instruction, and described frequency converter sends instruction by data processor and controls;
Also be provided with acoustic wall and the blimp of reflecting background while measuring for reducing microphone, described blimp is arranged on the outside of road surface supporting rotary frame, motor and gear train, the ground unrest isolation of sending when by road surface supporting rotary frame, motor and gear train action.
2. a kind of vehicle tire noise test macro as claimed in claim 1, it is characterized in that: described supporting mechanism comprises that inner support seat, outer support seat and support wheel form, support wheel is arranged between inner support seat, outer support seat and road surface supporting rotary frame, and the pressure on the supporting rotary frame of road surface is applied on inner support seat and outer support seat support wheel by some.
3. a kind of vehicle tire noise test macro as claimed in claim 1 or 2, is characterized in that: described pedestal is comprised of fixed base plate and the support post being vertically set on fixed base plate.
4. a kind of vehicle tire noise test macro as claimed in claim 3, is characterized in that: described inner support seat is arranged on the support post of pedestal by receiver, is used for bearing the weight of road surface supporting rotary frame and simulated roadway inner side part.
5. a kind of vehicle tire noise test macro as claimed in claim 1 or 2, is characterized in that: described outer support seat is arranged on the fixed base plate of pedestal, is used for bearing the weight of road surface supporting rotary frame and simulated roadway Outboard Sections.
6. a kind of vehicle tire noise test macro as claimed in claim 1 or 2, is characterized in that: described road surface supporting rotary frame can be installed different simulated roadways, and is supported by thrust bearing.
7. a kind of vehicle tire noise test macro as claimed in claim 1 or 2, is characterized in that: be also provided with tripod, by tripod, be used for installment and debugging microphone height and orientation.
8. a kind of vehicle tire noise test macro as claimed in claim 1 or 2, is characterized in that: the cross section of described blimp is for circular or square, and its interlayer material is any one in sound absorption cotton or glass wool.
9. a kind of vehicle tire noise test macro as claimed in claim 1 or 2, is characterized in that: described acoustic wall can be made wedge absorber or aperture resonant cavity.
10. a kind of vehicle tire noise test macro as claimed in claim 1 or 2, is characterized in that: described gear train is with any one in transmission, chain transmission or gear drive.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410342651.9A CN104142250B (en) | 2014-07-17 | 2014-07-17 | Vehicle tire noise testing system |
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| CN201410342651.9A CN104142250B (en) | 2014-07-17 | 2014-07-17 | Vehicle tire noise testing system |
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| CN104142250A true CN104142250A (en) | 2014-11-12 |
| CN104142250B CN104142250B (en) | 2017-02-22 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105277275A (en) * | 2015-11-10 | 2016-01-27 | 吉林大学 | Test stand for testing automobile tyre pavement noises |
| RU2610547C2 (en) * | 2015-07-23 | 2017-02-13 | Открытое акционерное общество "АВТОВАЗ" | Method for measuring tyre noise of vehicle in motion |
| CN106441880A (en) * | 2016-11-16 | 2017-02-22 | 中国船舶重工集团公司第七0三研究所 | An experience pre-estimating method for gear case noises |
| CN109187056A (en) * | 2018-09-20 | 2019-01-11 | 中信戴卡股份有限公司 | Wheel suspension test bench with real road surface characteristics |
| CN110455395A (en) * | 2019-08-28 | 2019-11-15 | 哈尔滨工业大学 | For tire-road noise sound test shifting weight formula two-wheel noise measuring vehicle |
| CN113567156A (en) * | 2021-07-22 | 2021-10-29 | 青岛双星轮胎工业有限公司 | Device and method for testing tire noise by using semi-anechoic chamber flat steel belt testing machine |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7011453B2 (en) * | 2017-12-07 | 2022-01-26 | Ｔｏｙｏ Ｔｉｒｅ株式会社 | Tire noise test equipment and method |
| JP7011452B2 (en) * | 2017-12-07 | 2022-01-26 | Ｔｏｙｏ Ｔｉｒｅ株式会社 | Tire noise test equipment and method |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2610547C2 (en) * | 2015-07-23 | 2017-02-13 | Открытое акционерное общество "АВТОВАЗ" | Method for measuring tyre noise of vehicle in motion |
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| CN105277275B (en) * | 2015-11-10 | 2019-03-19 | 吉林大学 | Automobile tire road rumble is test bed |
| CN106441880A (en) * | 2016-11-16 | 2017-02-22 | 中国船舶重工集团公司第七0三研究所 | An experience pre-estimating method for gear case noises |
| CN109187056A (en) * | 2018-09-20 | 2019-01-11 | 中信戴卡股份有限公司 | Wheel suspension test bench with real road surface characteristics |
| CN110455395A (en) * | 2019-08-28 | 2019-11-15 | 哈尔滨工业大学 | For tire-road noise sound test shifting weight formula two-wheel noise measuring vehicle |
| CN113567156A (en) * | 2021-07-22 | 2021-10-29 | 青岛双星轮胎工业有限公司 | Device and method for testing tire noise by using semi-anechoic chamber flat steel belt testing machine |
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