CN113654815A - Test bench and test method for tire noise and suspension excitation - Google Patents
Test bench and test method for tire noise and suspension excitation Download PDFInfo
- Publication number
- CN113654815A CN113654815A CN202110974750.9A CN202110974750A CN113654815A CN 113654815 A CN113654815 A CN 113654815A CN 202110974750 A CN202110974750 A CN 202110974750A CN 113654815 A CN113654815 A CN 113654815A
- Authority
- CN
- China
- Prior art keywords
- tire
- bearing box
- test
- noise
- transmission shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
- G01M17/02—Tyres
- G01M17/025—Tyres using infrasonic, sonic or ultrasonic vibrations
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H9/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
- G01M17/04—Suspension or damping
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Tires In General (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The invention discloses a test bed for tire noise and suspension excitation and a test method, wherein the test bed for tire noise and suspension excitation comprises a power device, a tire, a test device and a silent hub test bed; the power device comprises a load weight, a bearing box, a tire mounting disc, a base, a hydraulic column, a transmission shaft and a tire driving unit, wherein the base is arranged on the table board, and the bearing box is positioned above the base and supported by the hydraulic column; placing a load weight in the bearing box; a transmission shaft extends out of one side or two opposite sides of the bearing box, the transmission shaft is in running fit with the bearing box, and a tire driving unit is arranged in the bearing box and is in transmission connection with the transmission shaft; a tire mounting disc is fixed at the end part of the transmission shaft and used for mounting a tire; the testing device comprises a Z-direction laser vibration meter, a Y-direction laser vibration meter and a microphone. The invention realizes the test function of simulating the tire noise and excitation under the working condition of the whole vehicle and can be used for the suspension stiffness selection test.
Description
Technical Field
The invention relates to the technical field of automobile processing and manufacturing, in particular to a test bed and a test method for tire noise and suspension excitation.
Background
Along with the improvement of life quality of people, the requirements of people on NVH attributes (vibration and noise) of automobiles are higher and higher at present, tire noise (tire running noise) and road noise (in-vehicle response noise caused by road excitation) of the automobiles are one of main components of passenger car noise in the process of high-speed running of the automobiles, so that processes of tire type selection, suspension stiffness selection (comprehensive evaluation of attributes such as NVH and smoothness) and the like are often accompanied in the development process of new automobile types of automobiles, a large number of tests are accompanied in the type selection or selection process, but due to the difference of vehicle states or test conditions (background noise, road roughness, road humidity and the like), test data are difficult to compare and accumulate, and a large amount of time and funds are wasted in the links in the development process of the automobiles.
The prior art solutions are generally as follows:
firstly, testing the whole vehicle road: in the vehicle development process, a microphone is placed near a tire in the whole vehicle state, a vibration sensor is placed at a steering knuckle, and the tire noise and the road excitation (vibration) are tested through tests on roads with different performances (Belgium roads, asphalt roads and the like) and under different running conditions (acceleration, constant speed, sliding and the like).
The existing whole vehicle road testing device has the following defects: (1) because the configuration or the quality of the test vehicle quantity is different, the noise and the excitation data of the tire are influenced, and the test data are difficult to compare and accumulate; (2) the test process is greatly influenced by environment (background noise, wind speed and the like) and road (road surface humidity and the like), and the test accuracy is low.
Secondly, patent CN105277275B discloses a test bed for testing road surface noise of an automobile tire, which mainly comprises a sound-proof board dividing the interior of a sound-proof shield device into an upper part and a lower part, wherein the upper part comprises a sound sensor device, a tire device and a hydraulic loading device, and the lower part comprises a belt transmission device, a variable frequency motor device and a sliding table cylinder device; the tire device is positioned right above the opening of the sound insulation board, the tire device is provided with a force sensor and a rotating speed sensor, the sound sensor device is fixed on the sound insulation board, the hydraulic loading device is used for controlling the loading force of the tire device, and the variable frequency motor device is connected with the belt transmission device; the belt transmission device forms a simulated road surface, collects information of the sound sensor device, the force sensor and the rotating speed sensor, and respectively obtains noise of an automobile tire road surface, tire loading force and tire rotating speed.
The existing test bed for testing the road surface noise of the automobile tire has the following defects: (1) the existing test bed can not adjust the bearing rigidity and can not carry out the related test of the suspension rigidity; (2) the existing test bed drives the rotating speed of the tire through a belt, the wheel edge has no torque output, the noise of the tire is influenced by friction force, and the test data is not accurate enough.
Disclosure of Invention
The invention aims to provide a test bench and a test method for tire noise and suspension excitation.
In order to solve the technical problems, the invention adopts the following technical scheme:
a test bench for tire noise and suspension excitation comprises a power device, a tire, a testing device and a silent rotary hub test bench;
the mute rotary hub test bed comprises a table top and a mute rotary hub, the mute rotary hub is connected with a rotary hub driving unit for driving the mute rotary hub to rotate, the mute rotary hub consists of a rotary hub body and a hub replaceable surface, and the hub replaceable surface mainly simulates the excitation of different performance roads to a tire;
the power device comprises a load weight, a bearing box, a tire mounting disc, a base, a hydraulic column, a transmission shaft and a tire driving unit, wherein the base is arranged on the table board, and the bearing box is positioned above the base and supported by the hydraulic column; a load weight is placed in the bearing box and is used for simulating the mass of the whole vehicle borne by the tire; a transmission shaft extends out of one side or two opposite sides of the bearing box, the transmission shaft is in running fit with the bearing box, and a tire driving unit is arranged in the bearing box and is in transmission connection with the transmission shaft; a tire mounting disc is fixed at the end part of the transmission shaft and used for mounting a tire, and the tire is matched with the mute rotary hub;
the testing device comprises a Z-direction laser vibration meter, a Y-direction laser vibration meter and a microphone;
the Z-direction laser vibration meter is arranged on the base and corresponds to the bearing box and is used for detecting the Z-direction vibration condition of the bearing box;
the Y-direction laser vibration measuring device is arranged right opposite to the tire mounting disc, supported on the table top through the vertical telescopic frame and used for testing the Y-direction vibration condition of the wheel core;
the microphone is arranged on the vertical telescopic frame and used for testing the noise of the tire.
Preferably, the transmission shaft is still overlapped and is equipped with the fixed disk lieing in the tire mounting disc inboard, fixed disk and transmission shaft normal running fit, and the fixed disk passes through bracket and bearing box fixed connection.
Preferably, the front and the rear of the bearing box are respectively connected with an extension arm, and the extension arms are connected with corresponding hydraulic columns; the transmission shaft extends from the left and/or right side of the carrying case.
Preferably, be equipped with in the bearing box and bear the weight of the acoustic celotex board, bear the weight of the acoustic celotex board and divide into two upper and lower chambeies with the bearing box, wherein the epicoele is used for placing load weight, and tire drive unit is located the cavity of resorption and is connected with the transmission shaft transmission.
Preferably, the tire driving unit comprises a motor and a controller, the motor is in transmission connection with the transmission shaft, and the controller is in control connection with the motor.
Preferably, the controller is located at the front side of the motor, and a counterweight is further arranged at the rear side of the motor.
Preferably, the vertical telescopic frame comprises a first-stage extending arm and a second-stage extending arm, the second-stage extending arm is fixedly connected with the table top, and the height of the first-stage extending arm and the height of the second-stage extending arm are adjusted through hydraulic pressure.
Preferably, the first-level boom is provided with a microphone mounting hole, and the microphone mounting hole is used for mounting a microphone.
The invention also discloses a test method for the tire noise and the suspension excitation, and the test bench for the tire noise and the suspension excitation comprises the following steps:
(1) lifting the power device 1 integrally through the hydraulic column, mounting the tire on a tire mounting disc, and then adjusting the hydraulic column to enable the tire to be in contact with the mute rotary hub;
(2) simulating the mass of the whole vehicle, selecting load weight to be arranged in a bearing box, adjusting the hydraulic pressure in a hydraulic column, and simulating the rigidity of a suspension to test;
(3) simulating the test working condition of the whole vehicle, starting a tire driving unit to give a certain torque to the tire, and simultaneously starting a hub driving unit to enable a mute hub to give a certain load to the tire;
(4) the Y-direction laser vibration measuring device is level to the wheel core by adjusting the height of the vertical telescopic frame, the microphone is installed in place and used for testing the Y-direction vibration condition of the wheel core and the noise of a tire, and meanwhile, the Z-direction laser vibration measuring device detects the Z-direction vibration condition of the testing device.
Preferably, in the step (2), the hydraulic pressure in the hydraulic column can be adjusted to simulate different rigidities of the suspension for testing.
The invention has the beneficial effects that:
by the test bench and the test method, the test function of simulating the tire noise and excitation under the working condition of the whole vehicle is realized, and the test bench and the test method can be used for the suspension stiffness selection test.
The invention has the following beneficial effects: (1) the test boundary conditions (the background noise in the silencing room is certain, the hub rotating test bed and the road surface condition are certain) of the bench test are stable, and test data can be contrastingly accumulated; (2) the bench test simulates the whole vehicle test, and the test accuracy is high; (3) the bench test can meet the tire noise test function, and meanwhile, the suspension excitation (vibration) test can be carried out under different suspension rigidities.
Drawings
FIG. 1 is a first schematic diagram of the tire noise and suspension excitation test bed of the present invention;
FIG. 2 is a second schematic structural view of the tire noise and suspension excitation test bed of the present invention;
FIG. 3 is a second schematic structural view of the tire noise and suspension excitation test stand of the present invention;
FIG. 4 is a first schematic structural diagram of a power plant according to the present invention;
FIG. 5 is a schematic structural view II of a power unit according to the present invention;
FIG. 6 is a schematic view of a tire drive unit in the power plant of the present invention;
FIG. 7 is a schematic structural view of a testing device and a mute rotary hub test bed according to the present invention;
FIG. 8 is an internal schematic view of the silent hub test stand of the present invention.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings.
The test stand for tire noise and suspension excitation according to the present embodiment performs tire noise and suspension excitation tests based on a conventional anechoic chamber and a silent rotary hub (hub surface replaceable) test stand.
The technical problem mainly solved by the embodiment is as follows: (1) in the process of developing a new vehicle, before the whole vehicle is assembled, the excitation test work of tire noise and suspension is completed, and the part of work of tire model selection and suspension rigidity selection is completed in advance; (2) the existing tire noise test bench does not consider the influence of the added mass of the whole vehicle on the tire, the suspension stiffness and the wheel rim torque on the tire noise and the excitation thereof, and the test data is not accurate enough; (3) because the bench test boundary conditions are relatively uniform, the test data can be compared in an accumulated mode, and repeated tests are avoided.
The present embodiment relates to the interpretation of terms: mute hub rotating test bed: the hub rotating test bed reaches a mute standard (the noise of the hub rotating is more than 10dB lower than the test noise); noise sensor (microphone): the noise sensor is a sensor which is internally provided with a sound-sensitive electret condenser microphone, and the sound waves enable an electret film in the microphone to vibrate to cause the change of capacitance, so that the conversion from optical signals to electric signals is realized; laser vibration sensor: the method is characterized in that laser beams of a sensor are used as a transmitting light source, point measurement, line measurement (two-dimensional measurement) or three-dimensional measurement (contour measurement) is carried out on a vibrating measured object, and meanwhile, collected measurement data are processed through a series of algorithms of built-in software to obtain related parameters of the vibration of the measured object.
As shown in fig. 1 to 8, a test stand for tire noise and suspension excitation comprises a power device 1, a tire 2, a testing device 3 and a silent rotary hub test stand 4. The power device can realize the functions of load, adjustable rigidity, power supply and the like, the mute rotary hub provides a certain load in the rotating process, and the testing device comprises a laser vibration sensor and a microphone and can carry out vibration (excitation) and noise testing.
The mute rotary hub test bed 4 comprises a table board and a mute rotary hub, the mute rotary hub is connected with a rotary hub driving unit for driving the mute rotary hub to rotate, the mute rotary hub is composed of a rotary hub body 25 and a hub replaceable surface 24, and the hub replaceable surface 24 mainly simulates excitation of different performance roads to a tire.
The power plant comprises a load weight 5, a load-bearing box 6, a tyre mounting disc 8, a base 9, a hydraulic column 11, a transmission shaft 14 and a tyre drive unit.
The base 9 is arranged on the table top, the bearing box 6 is positioned above the base 9 and is supported by the hydraulic column 11, and the hydraulic column 11 is mainly used for lifting the power device 1 and simulating the rigidity of the suspension; a load weight 5 is placed in the bearing box 6 and used for simulating the mass of the whole vehicle borne by the tire; a transmission shaft 14 extends from two opposite sides of the bearing box 6, the transmission shaft 14 is in running fit with the bearing box 6 through a bearing 19, and a tire driving unit is arranged in the bearing box 6 and is in transmission connection with the transmission shaft 14; the end part of the transmission shaft 14 is fixed with a tire mounting disc 8, the tire mounting disc 8 is used for mounting the tire 2, and the tire 2 is matched with the mute rotary hub.
In this embodiment, the transmission shaft 14 is further sleeved with a fixed disk 7 on the inner side of the tire mounting disk 8, the fixed disk 7 is in running fit with the transmission shaft 14 through a bearing 12, and the fixed disk 7 is fixedly connected with the bearing box 6 through a bracket.
In the embodiment, the front and the back of the bearing box 6 are respectively connected with an extension arm 17, and the extension arms 17 are connected with the corresponding hydraulic columns 11; the drive shaft 14 extends from the left and right sides of the carrier box.
In this embodiment, a load-bearing baffle 13 is provided in the load-bearing box 6, and the load-bearing baffle 13 is mainly used for bearing the load weight 5 and isolating the motor noise. The bearing box 6 is divided into an upper cavity and a lower cavity by the bearing acoustic panel 13, wherein the upper cavity is used for placing the load weight 5, and the tire driving unit is positioned in the lower cavity and is in transmission connection with the transmission shaft 14.
The tire driving unit comprises a motor 18 and a controller 15, the motor 18 is in transmission connection with the transmission shaft 14, the controller 15 is in control connection with the motor 18, and the controller 15 is mainly used for controlling the output torque of the motor, the rotating speed of the motor and the like.
In this embodiment, the controller 15 is located at the front side of the motor 18, and a counterweight 16 is further disposed at the rear side of the motor 18, and the counterweight 16 is used for balancing the front and rear weights of the device.
The test apparatus includes a Z-direction laser vibration meter 10, a Y-direction laser vibration meter 20, and a microphone.
The Z-direction laser vibration measuring device 10 is arranged on the base 9 and corresponds to the bearing box 6, and the Z-direction laser vibration measuring device 10 is used for detecting the Z-direction vibration condition of the bearing box 6.
The Y-direction laser vibration measuring device 20 is arranged right opposite to the tire mounting disc 8, the Y-direction laser vibration measuring device 20 is supported on the table top through a vertical telescopic frame, and the Y-direction laser vibration measuring device 20 is used for testing the Y-direction vibration condition of the wheel core.
The microphone is arranged on the vertical telescopic frame and used for testing the noise of the tire.
In this embodiment, the vertical telescopic frame includes a first-stage extending arm 22 and a second-stage extending arm 23, the second-stage extending arm 23 is fixedly connected to the table top, and the height between the first-stage extending arm 22 and the second-stage extending arm 23 is adjusted by hydraulic pressure. The first-level boom 22 is provided with a microphone mounting hole 21, and the microphone mounting hole 21 is used for mounting a microphone.
The embodiment also discloses a test method for tire noise and suspension excitation, which uses the test bench for tire noise and suspension excitation and comprises the following steps:
(1) lifting the power device 1 integrally through the hydraulic column 11, mounting the tire 2 on the tire mounting disc 8, and then adjusting the hydraulic column 11 to enable the tire to be in contact with the rotating hub;
(2) simulating the mass of the whole vehicle, selecting a load weight 5 to place a mass block in a bearing box 6, adjusting hydraulic pressure in a hydraulic column 11, and simulating suspension stiffness (different stiffness can be selected) to test (because the vibration conditions of the test device are different under different stiffness, the device can be used for suspension stiffness selection under the condition of certain vibration magnitude);
(3) simulating the test working condition of the whole vehicle, starting the motor 18 to give a certain torque to the tire, and simultaneously rotating the hub to give a certain load to the tire;
(4) the height of the primary extension arm 22 is adjusted hydraulically, so that the laser vibration measuring device 20 is flush with the wheel core, and a microphone is mounted in the microphone mounting hole 21 and used for testing the Y-direction (transverse) vibration condition of the wheel core and the tire noise, and meanwhile, the laser vibration measuring device 10 detects the Z-direction (vertical) vibration condition of the testing device.
By the test bench and the test method, the test function of simulating the tire noise and excitation under the working condition of the whole vehicle is realized, and the test bench and the test method can be used for the suspension stiffness selection test.
The invention has the following beneficial effects: (1) the test boundary conditions (the background noise in the silencing room is certain, the hub rotating test bed and the road surface condition are certain) of the bench test are stable, and test data can be contrastingly accumulated; (2) the bench test simulates the whole vehicle test, and the test accuracy is high; (3) the bench test can meet the tire noise test function, and meanwhile, the suspension excitation (vibration) test can be carried out under different suspension rigidities.
Although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that: modifications and equivalents may be made thereto without departing from the spirit and scope of the invention and it is intended to cover in the claims the invention as defined in the appended claims.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "X, Y, Z", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered as limiting the scope of the present invention.
Claims (10)
1. A test bench for tire noise and suspension excitation is characterized in that: the device comprises a power device, a tire, a testing device and a mute rotary hub test bed;
the mute rotary hub test bed comprises a table top and a mute rotary hub, the mute rotary hub is connected with a rotary hub driving unit for driving the mute rotary hub to rotate, the mute rotary hub consists of a rotary hub body and a hub replaceable surface, and the hub replaceable surface mainly simulates the excitation of different performance roads to a tire;
the power device comprises a load weight, a bearing box, a tire mounting disc, a base, a hydraulic column, a transmission shaft and a tire driving unit, wherein the base is arranged on the table board, and the bearing box is positioned above the base and supported by the hydraulic column; a load weight is placed in the bearing box and is used for simulating the mass of the whole vehicle borne by the tire; a transmission shaft extends out of one side or two opposite sides of the bearing box, the transmission shaft is in running fit with the bearing box, and a tire driving unit is arranged in the bearing box and is in transmission connection with the transmission shaft; a tire mounting disc is fixed at the end part of the transmission shaft and used for mounting a tire, and the tire is matched with the mute rotary hub;
the testing device comprises a Z-direction laser vibration meter, a Y-direction laser vibration meter and a microphone;
the Z-direction laser vibration meter is arranged on the base and corresponds to the bearing box and is used for detecting the Z-direction vibration condition of the bearing box;
the Y-direction laser vibration measuring device is arranged right opposite to the tire mounting disc, supported on the table top through the vertical telescopic frame and used for testing the Y-direction vibration condition of the wheel core;
the microphone is arranged on the vertical telescopic frame and used for testing the noise of the tire.
2. The tire noise and suspension excitation test rig of claim 1, wherein: the transmission shaft is still overlapped and is equipped with the fixed disk lieing in the tire mounting disc inboard, fixed disk and transmission shaft normal running fit, and the fixed disk passes through bracket and bearing box fixed connection.
3. The tire noise and suspension excitation test rig of claim 1, wherein: the front and the back of the bearing box are respectively connected with an extension arm, and the extension arms are connected with corresponding hydraulic columns; the transmission shaft extends from the left and/or right side of the carrying case.
4. A tire noise and suspension excitation test rig according to any one of claims 1-3, wherein: the bearing box is internally provided with a bearing sound insulation plate which divides the bearing box into an upper cavity and a lower cavity, wherein the upper cavity is used for placing load weight, and the tire driving unit is positioned in the lower cavity and is in transmission connection with the transmission shaft.
5. The tire noise and suspension excitation test rig of claim 4, wherein: the tire driving unit comprises a motor and a controller, the motor is in transmission connection with the transmission shaft, and the controller is in control connection with the motor.
6. The tire noise and suspension excitation test rig of claim 5, wherein: the controller is located the front side of motor, is located the rear side of motor and still is equipped with the counter weight.
7. The tire noise and suspension excitation test rig of claim 1, wherein: the vertical telescopic frame comprises a first-stage extending arm and a second-stage extending arm, the second-stage extending arm is fixedly connected with the table top, and the height between the first-stage extending arm and the second-stage extending arm is adjusted through hydraulic pressure.
8. The tire noise and suspension excitation test rig of claim 7, wherein: and a microphone mounting hole is formed in the first-level extension arm and used for mounting a microphone.
9. A tire noise and suspension excitation testing method using the tire noise and suspension excitation test stand according to any one of claims 1 to 8, characterized by comprising the steps of:
(1) lifting the power device 1 integrally through the hydraulic column, mounting the tire on a tire mounting disc, and then adjusting the hydraulic column to enable the tire to be in contact with the mute rotary hub;
(2) simulating the mass of the whole vehicle, selecting load weight to be arranged in a bearing box, adjusting the hydraulic pressure in a hydraulic column, and simulating the rigidity of a suspension to test;
(3) simulating the test working condition of the whole vehicle, starting a tire driving unit to give a certain torque to the tire, and simultaneously starting a hub driving unit to enable a mute hub to give a certain load to the tire;
(4) the Y-direction laser vibration measuring device is level to the wheel core by adjusting the height of the vertical telescopic frame, the microphone is installed in place and used for testing the Y-direction vibration condition of the wheel core and the noise of a tire, and meanwhile, the Z-direction laser vibration measuring device detects the Z-direction vibration condition of the testing device.
10. A tire noise and suspension excitation testing method as claimed in claim 9, wherein: in the step (2), the hydraulic pressure in the hydraulic column can be adjusted, and different rigidities of the suspension are simulated for testing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110974750.9A CN113654815A (en) | 2021-08-24 | 2021-08-24 | Test bench and test method for tire noise and suspension excitation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110974750.9A CN113654815A (en) | 2021-08-24 | 2021-08-24 | Test bench and test method for tire noise and suspension excitation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113654815A true CN113654815A (en) | 2021-11-16 |
Family
ID=78481790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110974750.9A Withdrawn CN113654815A (en) | 2021-08-24 | 2021-08-24 | Test bench and test method for tire noise and suspension excitation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113654815A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114427964A (en) * | 2022-01-26 | 2022-05-03 | 中国科学院力学研究所 | Noise detection device and detection method for aircraft tire |
-
2021
- 2021-08-24 CN CN202110974750.9A patent/CN113654815A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114427964A (en) * | 2022-01-26 | 2022-05-03 | 中国科学院力学研究所 | Noise detection device and detection method for aircraft tire |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110487560B (en) | Method for testing noise transmission path of interior trim car body | |
| CN111241706B (en) | Automobile suspension dynamic load performance evaluation method based on dynamic K & C test system | |
| US5610330A (en) | Effective road profile control method for a spindle-coupled road simulator | |
| JP3318235B2 (en) | Method and apparatus for predicting vehicle interior noise | |
| US5259246A (en) | Apparatus for testing the wheel suspension of a vehicle | |
| CN104515661B (en) | A kind of method of the vibration contribution amount of measurement suspension point | |
| KR20000048781A (en) | Method to specify random vibration tests for product durability validation | |
| CN104266749A (en) | Device and method for offline detecting NVH (Noise Vibration and Harshness) of vehicle generator | |
| JP2004509333A (en) | Movable vehicle test environment equipment | |
| CN113654815A (en) | Test bench and test method for tire noise and suspension excitation | |
| CN111562518B (en) | System and method for detecting stability of vehicle-mounted power supply of electric vehicle | |
| JP2019100981A (en) | Tire noise test device and method | |
| CN208860610U (en) | A kind of automotive hub bearing dynamic vibration durable test stand | |
| CN209400210U (en) | A kind of speed reducer assembly abnormal sound testboard bay | |
| CN103257043A (en) | Automobile hub bearing endurance life simulation testing machine | |
| CN111912631A (en) | Tire uniformity data correction method and tire uniformity testing machine | |
| CN113567156A (en) | Device and method for testing tire noise by using semi-anechoic chamber flat steel belt testing machine | |
| CN115081177A (en) | Vehicle ride comfort road simulation verification method | |
| CN115096613A (en) | Road simulation test method and system for finished automobile suspension assembly | |
| CN113806977A (en) | Noise vibration analysis method and system for automobile cooling fan | |
| JPH11142295A (en) | Unit test device of wheel | |
| CN108731897B (en) | Device for measuring riding comfort of vehicle and using method | |
| CN113484031B (en) | Method for setting noise transfer function target of suspension attachment point | |
| Azizi | Measurement methods of tire/road noise | |
| CN111551246B (en) | Method for testing knocking noise transmitted into cab by automobile transmission |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20211116 |
|
| WW01 | Invention patent application withdrawn after publication |