CN104573343B - A kind of Asphalt Pavement Surface Evenness comfortableness field evaluation method and method of tire - Google Patents
A kind of Asphalt Pavement Surface Evenness comfortableness field evaluation method and method of tire Download PDFInfo
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Abstract
The invention discloses a kind of Asphalt Pavement Surface Evenness comfortableness field evaluation method and method of tire, the data collecting instrument that field evaluation method is used can be in Real-time Collection test process various data informations, such as time, experiment speed, each measuring point acceleration information, the longitude of test segment and latitude, the image data in test track；More complete data information is conducive to the selection of data, for the follow-up pavement performance change of Experiment Road provides gross data foundation；Method of tire, the whole vehicle model of foundation and the actual vehicle characteristics of motion are very close to can preferably simulate the movement characteristic under road irregularity excitation；And the speed that software model runs on computers is than fast 3~6 times in real time, quickly Experiment Road flatness can be evaluated, the evaluation method outdoor work is less, it is smaller by ectocine, the effectively save human and material resources of energy, remove experimental test instrument installation process from, make evaluation method more easy, required time is shorter.
Description
Technical field
The invention belongs to usage capability of road detection field, and in particular to comment at a kind of Asphalt Pavement Surface Evenness comfortableness scene
Valency method and method of tire.
Background technology
As the satisfy the need deep understanding of surface evenness of the development and people of road promotes the mankind to be proposed within a nearly century
Various testing flatness evaluation methods, these methods can substantially be divided three classes：Section class, reaction class and subjective evaluation class.It is vertical
The evolution of Asphalt Pavement Surface Evenness evaluation method is seen, 3 stages can be classified as：1st stage was mainly searching can be true
The method of real reflection vertical section of road surface, this stage consider more factor be road surface in itself；2nd stage recognized Uneven road
The whole main cause for being to cause Vehicular vibration, so as to the grinding from the research steering Che Yu roads of simple road surface section by research emphasis
Study carefully；3rd stage researcher gradually takes human body comfort into account, under being sought for being interacted based on people-car-road
Asphalt Pavement Surface Evenness evaluation method.
Although having some scholars that people is taken into account the flatness carried out under people-car-road interacts both at home and abroad to comment
Valency technique study, but these researchs are carried out by theory method, and theory method research has the following disadvantages：(1) car
Model problem.Researcher carry out theory method road pavement carry out flatness evaluate when, generally by auto model be reduced to 2 from
By the full car auto model such as degree a quarter auto model, the car auto model of 4DOF half or 11 frees degree.Wherein, four points
One of auto model be single-wheel auto model, greatly differed from each other with actual vehicle, and the rotation and inclination of vehicle cannot be considered；Half car
Model is, with for-wheel vehicle as research object, half symmetrically only have been taken due to left and right vehicle wheel and has been accounted for, the vehicle mould of the simplification
Type then have ignored toppling and rotation for lateral direction of car；The foundation of multiple degrees of freedom whole vehicle model is with respect to a quarter auto model and half
Vehicle model has larger progress, but, theoretical calculation can be very numerous and diverse.(2) tire model problem.Theory method research flatness
It is the spring of 0 or a certain constant that problem carries out that vehicle tyre generally is simplified into a less damping of volume when tire is modeled,
Have ignored influence of the actual tire damping to vibrating.(3) road model problem.Using random more than the road model that theory method is set up
Sine-wave superimposed method or Road Surface Power Spectrum Density method set up grade road surface, are provided without actual test road surface elevation data and are built
Vertical road surface model.
The content of the invention
It is an object of the invention to overcome above-mentioned deficiency, there is provided a kind of Asphalt Pavement Surface Evenness comfortableness field evaluation method
And method of tire, Comfort Evaluation convenient, efficiently can be carried out to road.
In order to achieve the above object, a kind of Asphalt Pavement Surface Evenness comfortableness field evaluation method, comprises the following steps：
Step one：Three-dimensional acceleration transducer, camera, GPS watch-dogs, data collecting instrument and number are installed in instruction carriage
According to storage facilities, camera can monitor the lane width of vehicle driving range, three-dimensional acceleration transducer, camera and
The data of GPS watch-dogs are transferred to data collecting instrument and Data Holding Equipment；
Step 2：Test segment is numbered, makes instruction carriage at the uniform velocity by any track in test section, until surveying
Examination terminates；
Step 3：The data of storage are derived, calculating weighting to the seat three-dimensional acceleration information in each numbering section accelerates
Degree root-mean-square value；
Step 4：According to the size of root mean square of weighed acceleration, the level of comfort of passenger can be obtained, and then to experiment
Road flatness carries out Comfort Evaluation.
In the step one, by three-dimensional acceleration transducer be arranged on instruction carriage pilot set, assistant driver seat or after
The surface of seat or so seat.
In the step 3, root mean square of weighed acceleration formula is：
αwo=[(1.4 αwx)2+(1.4αwy)2+α2 wz]1/2
In formula：αw0--- total root mean square of weighed acceleration, m/s2；
αwx--- fore-and-aft direction (i.e. X axis) root mean square of weighed acceleration, m/s2；
αwy--- left and right directions (i.e. Y-axis) root mean square of weighed acceleration, m/s2；
αwz--- vertical direction (i.e. Z axis to) root mean square of weighed acceleration, m/s2。
Wherein, uniaxially root mean square of weighed acceleration then carries out spectrum analysis and obtains by each to acceleration information first
To acceleration Power spectral density Ga(f), and then to GaF () direct integral calculates unidirectional root mean square of weighed acceleration αw：
In formula：W (f) --- frequency weighting function, it is as follows for axially different w (f) function expression：
In the step 4, if acceleration root mean square is planted<0.315, the subjective feeling of people is to keep comfortable；
If it is 0.315~0.63 that acceleration root mean square is planted, the subjective feeling of people is slightly uncomfortable；
If it is 0.5~1.0 that acceleration root mean square is planted, the subjective feeling of people is that some are uncomfortable；
If it is 0.8~1.6 that acceleration root mean square is planted, the subjective feeling of people is uncomfortable；
If it is 1.25~2.5 that acceleration root mean square is planted, the subjective feeling of people is very uncomfortable；
If acceleration root mean square is planted>2.0, the subjective feeling of people is especially uncomfortable.
A kind of Asphalt Pavement Surface Evenness comfortableness method of tire, comprises the following steps：
Step one：Whole vehicle model is set up using dynamics simulation software Carsim；
Step 2：Using road surface elevation measuring instrument to test section in any track carry out altitude data information and adopt
Collection, and set up road axis elevation information, the linear information of road level line and road irregularity letter respectively according to measured data
Breath, these three information combinations are then completed the three-dimensional modeling on road surface together；
Step 3：Determine that acceleration gathers position by the sensor positioning function interface of Carsim softwares, data are set
Acquisition channel gathers the three-dimensional acceleration of each collection position respectively, and then emulation speed is set in Simulation Interface, enters
Pedestrian-Che-road interaction analog simulation；
Step 4：Emulation terminates output seat three-dimensional acceleration information, emulation section is numbered, to each numbering section
Interior seat three-dimensional acceleration information is processed, and calculates root mean square of weighed acceleration；
Step 5：According to the size of root mean square of weighed acceleration, the level of comfort of passenger can be obtained, and then to experiment
Road flatness carries out Comfort Evaluation.
In the step one, whole vehicle model method is set up as follows：The corresponding software inhouse E-Class of selection car first
Vehicle as modeling basic model, and then according to actual compact car body, tire, steering system suspension braking system, power train and sky
The characterisitic parameter of aerodynamics carries out the modification of E-Class basic model parameters, it is ensured that the properties feature of basic model with
Actually used vehicle is consistent.
In the step 4, root mean square of weighed acceleration formula is：
αwo=[(1.4 αwx)2+(1.4αwy)2+α2 wz]1/2
In formula：αw0--- total root mean square of weighed acceleration, m/s2；
αwx--- fore-and-aft direction (i.e. X axis) root mean square of weighed acceleration, m/s2；
αwy--- left and right directions (i.e. Y-axis) root mean square of weighed acceleration, m/s2；
αwz--- vertical direction (i.e. Z axis to) root mean square of weighed acceleration, m/s2。
Wherein, uniaxially root mean square of weighed acceleration then carries out spectrum analysis and obtains by each to acceleration information first
To acceleration Power spectral density Ga(f), and then to GaF () direct integral calculates unidirectional root mean square of weighed acceleration αw：
In formula：W (f) --- frequency weighting function, it is as follows for axially different w (f) function expression：
In the step 5, if acceleration root mean square is planted<0.315, the subjective feeling of people is to keep comfortable；
If it is 0.315~0.63 that acceleration root mean square is planted, the subjective feeling of people is slightly uncomfortable；
If it is 0.5~1.0 that acceleration root mean square is planted, the subjective feeling of people is that some are uncomfortable；
If it is 0.8~1.6 that acceleration root mean square is planted, the subjective feeling of people is uncomfortable；
If it is 1.25~2.5 that acceleration root mean square is planted, the subjective feeling of people is very uncomfortable；
If acceleration root mean square is planted>2.0, the subjective feeling of people is especially uncomfortable.
Compared with prior art, a kind of Asphalt Pavement Surface Evenness comfortableness field evaluation method, the data collecting instrument of use
Various data informations that can be in Real-time Collection test process, such as time, experiment speed, each measuring point acceleration information, test segment
Longitude and latitude, the image data etc. in test track；More complete data information is conducive to the selection of data, is Experiment Road
Follow-up pavement performance change provides gross data foundation.
Further, three-axis acceleration sensor of the invention almost covers all seating positions of car, can be reasonable
Evaluate the comfortableness of each seating position.
A kind of Asphalt Pavement Surface Evenness comfortableness method of tire, whole vehicle model and the actual vehicle characteristics of motion of foundation
Very close to, can preferably simulate road irregularity excitation under movement characteristic；And software model on computers runs
Speed can be evaluated quickly Experiment Road flatness than fast 3~6 times in real time, and the evaluation method outdoor work is less, by the external world
Influence is smaller, the effectively save human and material resources of energy, removes experimental test instrument installation process from, makes evaluation method more easy,
Required time is shorter.
Size according to root mean square of weighed acceleration may determine that the destructiveness of road evenness, when human feeling is
When uncomfortable (it is 0.8~1.6 that acceleration root mean square is planted), show that the behaviour in service of the road is affected, tackle road
Carry out repair.
Specific embodiment
The present invention will be further described below.
A kind of Asphalt Pavement Surface Evenness comfortableness field evaluation method, comprises the following steps：
Step one：A certain conventional car is selected as code test car, what the present invention was used in actual implementation process
Car is the car of Santana 3000 as standard vehicle.In car driver's seat, assistant driver seat or back seat or so seat
Chair surface is installed by three-dimensional acceleration transducer, pilot set and assistant driver seat three-dimensional acceleration transducer scheme of installation；
Appropriate location (ensuring that camera can monitor the lane width of vehicle driving range) installs high speed camera in car；
Signal amplifier is installed in car outside car roof, the GPS being connected with signal amplifier can be hand-held facilitating reality by tester
When monitoring test car speed of operation；Data acquisition and the channel data Acquisition Instrument of storage facilities 16 are placed in back seat appropriate location, and
It is connected with each acceleration transducer, high speed camera, GPS and Data Holding Equipment；Power supply storage battery is placed in into car floor to fit
Work as position, and be connected with other equipment.
Step 2：Start vehicle and remains stationary state, open 16 channel data Acquisition Instruments, debugging speed, each measuring point add
Speed, the first-class passage of shooting, check whether normal；Experiment Road road is passed through with Experiment Road design speed if test equipment is normal
Section, the step should be noted to keep constant vehicle speed as far as possible in process of the test, it is to avoid change track.
Step 3：Test terminates, and preserves test data, closes each equipment；The data separate DEWEsoft softwares that will be stored
Test initial data is opened and derived, (per 1km as one section) is numbered to test segment, to the number in each numbering section
According to, and then calculate seat root mean square of weighed acceleration；
Root mean square of weighed acceleration formula is：
αwo=[(1.4 αwx)2+(1.4αwy)2+α2 wz]1/2
In formula：αw0--- total root mean square of weighed acceleration, m/s2；
αwx--- fore-and-aft direction (i.e. X axis) root mean square of weighed acceleration, m/s2；
αwy--- left and right directions (i.e. Y-axis) root mean square of weighed acceleration, m/s2；
αwz--- vertical direction (i.e. Z axis to) root mean square of weighed acceleration, m/s2。
Wherein, uniaxially root mean square of weighed acceleration then carries out spectrum analysis and obtains by each to acceleration information first
To acceleration Power spectral density Ga(f), and then to GaF () direct integral calculates unidirectional root mean square of weighed acceleration αw：
In formula：W (f) --- frequency weighting function, it is as follows for axially different w (f) function expression：
Step 4：According to seat root mean square of weighed acceleration size, the level of comfort of passenger can be obtained, and then to surveying
The flatness for trying section is evaluated；
According to《Automobile ride is tested》The human body subjective feeling that (GB/T4970-2009) propose is equal with weighted acceleration
The corresponding relation of root value, if acceleration root mean square is planted<0.315, the subjective feeling of people is to keep comfortable；
If it is 0.315~0.63 that acceleration root mean square is planted, the subjective feeling of people is slightly uncomfortable；
If it is 0.5~1.0 that acceleration root mean square is planted, the subjective feeling of people is that some are uncomfortable；
If it is 0.8~1.6 that acceleration root mean square is planted, the subjective feeling of people is uncomfortable；
If it is 1.25~2.5 that acceleration root mean square is planted, the subjective feeling of people is very uncomfortable；
If acceleration root mean square is planted>2.0, the subjective feeling of people is especially uncomfortable.
It is comprehensive when the size of the root mean square of weighed acceleration for calculating meets two kinds of different comfortablenesses simultaneously to be experienced
Close and consider the factors such as road evenness destruction and rehabilitation expense, the poor rank of selection comfortableness.
After drawing comfortableness rank, according to the actual conditions at scene, the flatness of road pavement is overhauled.
A kind of Asphalt Pavement Surface Evenness comfortableness method of tire, comprises the following steps：
Step one：The present invention is set up using Santana 3000 as code test car using dynamics simulation software Carsim
Whole vehicle model, modeling method is as follows：The corresponding software inhouse E-Class vehicles of selection car are used as the basic mould of modeling first
Type, and then according to seven big subsystems such as actual compact car body, tire, steering system suspension braking system, power train and aerodynamics
The characterisitic parameter of system carries out the modification of E-Class basic model parameters, it is ensured that the properties feature of basic model with actually make
It is consistent with vehicle.
Step 2：Altitude data information gathering is carried out to a certain track in test section using road surface elevation measuring instrument, and
Set up road axis elevation file, the linear file of road level line and road irregularity file respectively according to measured data, will
These three files combine the three-dimensional modeling for then completing road surface.
Step 3：Position is gathered by the sensor positioning function interface setting acceleration of Carsim softwares (to be set in
Driver, copilot, heel row or so seat)；Simulation Interface setting acquisition channel gathers each survey respectively in Carsim softwares
The three-dimensional acceleration of point；Design speed according to Experiment Road sets to emulation speed；Recall the road surface model of foundation
Enter pedestrian-car-road interaction analog simulation.
Step 4：Emulation terminates each seat three-dimensional acceleration information of output, and emulation section is numbered (per 1km conducts
One section), the seat three-dimensional acceleration information in each numbering section is processed, calculate root mean square of weighed acceleration；
Root mean square of weighed acceleration formula is：
αwo=[(1.4 αwx)2+(1.4αwy)2+α2 wz]1/2
In formula：αw0--- total root mean square of weighed acceleration, m/s2；
αwx--- fore-and-aft direction (i.e. X axis) root mean square of weighed acceleration, m/s2；
αwy--- left and right directions (i.e. Y-axis) root mean square of weighed acceleration, m/s2；
αwz--- vertical direction (i.e. Z axis to) root mean square of weighed acceleration, m/s2。
Wherein, uniaxially root mean square of weighed acceleration then carries out spectrum analysis and obtains by each to acceleration information first
To acceleration Power spectral density Ga(f), and then to GaF () direct integral calculates unidirectional root mean square of weighed acceleration αw：
In formula：W (f) --- frequency weighting function, it is as follows for axially different w (f) function expression：
Step 5：According to the size of root mean square of weighed acceleration, the level of comfort of passenger can be obtained, and then to experiment
Road flatness carries out Comfort Evaluation；
According to《Automobile ride is tested》The human body subjective feeling that (GB/T4970-2009) propose is equal with weighted acceleration
The corresponding relation of root value, if acceleration root mean square is planted<0.315, the subjective feeling of people is to keep comfortable；
If it is 0.315~0.63 that acceleration root mean square is planted, the subjective feeling of people is slightly uncomfortable；
If it is 0.5~1.0 that acceleration root mean square is planted, the subjective feeling of people is that some are uncomfortable；
If it is 0.8~1.6 that acceleration root mean square is planted, the subjective feeling of people is uncomfortable；
If it is 1.25~2.5 that acceleration root mean square is planted, the subjective feeling of people is very uncomfortable；
If acceleration root mean square is planted>2.0, the subjective feeling of people is especially uncomfortable.
After drawing comfortableness rank, according to the actual conditions at scene, the flatness of road pavement is overhauled.
The present invention is using root mean square of weighed acceleration as flatness Comfort Evaluation index, there is provided one kind is based on vehicle
The Asphalt Pavement Surface Evenness comfortableness field measurement evaluation method and a kind of bituminous paving based on vehicle auto model of vehicle are put down
Whole degree comfortableness method of tire.Bituminous Pavement actual measurement flatness comfortableness field evaluation wherein based on vehicle vehicle
Method uses certain code test car, by installing test test monitoring equipment, data acquisition equipment, data storage device
Seat acceleration information collection is carried out Deng equipment, seat root mean square of weighed acceleration is calculated, and with reference to International Organization for standardization
(ISO) root mean square of weighed acceleration for being given is evaluated Experiment Road flatness comfortableness with human feeling's corresponding table.One
The Asphalt Pavement Surface Evenness comfortableness method of tire based on vehicle auto model is planted then to be imitated by using Carsim dynamics
True software sets up whole vehicle model and Experiment Road road model, people-car-road is interacted and is emulated, collection seat emulation
Data, calculate seat root mean square of weighed acceleration, and then equal with reference to the weighted acceleration that International Organization for standardization (ISO) is given
Root value is evaluated Experiment Road flatness comfortableness with human feeling's corresponding table.Whether Experiment Road is judged according to evaluation result
Needs are repaired.
Claims (8)
1. a kind of Asphalt Pavement Surface Evenness comfortableness field evaluation method, it is characterised in that：Comprise the following steps：
Step one：The storage of three-dimensional acceleration transducer, camera, GPS watch-dogs, data collecting instrument and data is installed in instruction carriage
Equipment is deposited, camera can monitor the lane width of vehicle driving range, three-dimensional acceleration transducer, camera and GPS prison
The data for controlling device are transferred to data collecting instrument and Data Holding Equipment；
Step 2：Test segment is numbered, makes instruction carriage at the uniform velocity by any track in test section, until test is tied
Beam；
Step 3：The data of storage are derived, it is equal to calculate weighted acceleration to the seat three-dimensional acceleration information in each numbering section
Root value；
Root mean square of weighed acceleration formula is：
αwo=[(1.4 αwx)2+(1.4αwy)2+α2 wz]1/2
In formula：αw0--- total root mean square of weighed acceleration, m/s2；
αwx--- fore-and-aft direction (i.e. X axis) root mean square of weighed acceleration, m/s2；
αwy--- left and right directions (i.e. Y-axis) root mean square of weighed acceleration, m/s2；
αwz--- vertical direction (i.e. Z axis to) root mean square of weighed acceleration, m/s2；
Wherein, uniaxially root mean square of weighed acceleration then carries out spectrum analysis and is added by each to acceleration information first
Speed Power spectral density Ga(f), and then to GaF () direct integral calculates unidirectional root mean square of weighed acceleration αw：
In formula：W (f) --- frequency weighting function, it is as follows for axially different w (f) function expression：
Z-direction
X, Y direction
Step 4：According to the size of root mean square of weighed acceleration, the level of comfort of passenger can be obtained, so it is flat to Experiment Road
Whole degree carries out Comfort Evaluation.
2. a kind of Asphalt Pavement Surface Evenness comfortableness field evaluation method according to claim 1, it is characterised in that：It is described
In step one, three-dimensional acceleration transducer is arranged on instruction carriage pilot set, assistant driver seat or back seat or so seat
Surface.
3. a kind of Asphalt Pavement Surface Evenness comfortableness field evaluation method according to claim 1, it is characterised in that：It is described
In step 4, if acceleration root mean square is planted<0.315, the subjective feeling of people is to keep comfortable；
If it is 0.315~0.63 that acceleration root mean square is planted, the subjective feeling of people is slightly uncomfortable；
If it is 0.5~1.0 that acceleration root mean square is planted, the subjective feeling of people is that some are uncomfortable；
If it is 0.8~1.6 that acceleration root mean square is planted, the subjective feeling of people is uncomfortable；
If it is 1.25~2.5 that acceleration root mean square is planted, the subjective feeling of people is very uncomfortable；
If acceleration root mean square is planted>2.0, the subjective feeling of people is especially uncomfortable；
When the size of the root mean square of weighed acceleration for calculating meets two kinds of different comfortablenesses simultaneously to be experienced, comprehensively examine
Consider road evenness destruction and rehabilitation expense factor, the poor rank of selection comfortableness.
4. a kind of Asphalt Pavement Surface Evenness comfortableness field evaluation method according to claim 1, it is characterised in that：When plus
Power acceleration root-mean-square value>When 0.8, road evenness comfort is influenceed, it is necessary to test roads by very important
Repaired.
5. a kind of Asphalt Pavement Surface Evenness comfortableness method of tire, it is characterised in that：Comprise the following steps：
Step one：Whole vehicle model is set up using dynamics simulation software Carsim；
Step 2：Using road surface elevation measuring instrument to test section in any track carry out altitude data information gathering, and
Set up road axis elevation information, the linear information of road level line and road irregularity information respectively according to measured data, will
These three information combinations then complete the three-dimensional modeling on road surface together；
Step 3：Determine that acceleration gathers position by the sensor positioning function interface of Carsim softwares, data acquisition is set
Passage gather respectively each collection position three-dimensional acceleration, and then Simulation Interface to emulation speed set, enter pedestrian-
Che-road interaction analog simulation；
Step 4：Emulation terminates output seat three-dimensional acceleration information, emulation section is numbered, in each numbering section
Seat three-dimensional acceleration information is processed, and calculates root mean square of weighed acceleration；
Root mean square of weighed acceleration formula is：
αwo=[(1.4 αwx)2+(1.4αwy)2+α2 wz]1/2
In formula：αw0--- total root mean square of weighed acceleration, m/s2；
αwx--- fore-and-aft direction (i.e. X axis) root mean square of weighed acceleration, m/s2；
αwy--- left and right directions (i.e. Y-axis) root mean square of weighed acceleration, m/s2；
αwz--- vertical direction (i.e. Z axis to) root mean square of weighed acceleration, m/s2；
Wherein, uniaxially root mean square of weighed acceleration then carries out spectrum analysis and is added by each to acceleration information first
Speed Power spectral density Ga(f), and then to GaF () direct integral calculates unidirectional root mean square of weighed acceleration αw：
In formula：W (f) --- frequency weighting function, it is as follows for axially different w (f) function expression：
Z-direction
X, Y direction
Step 5：According to the size of root mean square of weighed acceleration, the level of comfort of passenger can be obtained, so it is flat to Experiment Road
Whole degree carries out Comfort Evaluation.
6. a kind of Asphalt Pavement Surface Evenness comfortableness method of tire according to claim 5, it is characterised in that：It is described
In step one, whole vehicle model method is set up as follows：The corresponding software inhouse E-Class vehicles of selection car first are used as modeling
Basic model, and then according to actual compact car body, tire, steering system suspension braking system, power train and aerodynamic spy
Property parameter carries out the modification of E-Class basic model parameters, it is ensured that the properties feature of basic model and actually used vehicle
It is consistent.
7. a kind of Asphalt Pavement Surface Evenness comfortableness method of tire according to claim 5, it is characterised in that：It is described
In step 5, if acceleration root mean square is planted<0.315, the subjective feeling of people is to keep comfortable；
If it is 0.315~0.63 that acceleration root mean square is planted, the subjective feeling of people is slightly uncomfortable；
If it is 0.5~1.0 that acceleration root mean square is planted, the subjective feeling of people is that some are uncomfortable；
If it is 0.8~1.6 that acceleration root mean square is planted, the subjective feeling of people is uncomfortable；
If it is 1.25~2.5 that acceleration root mean square is planted, the subjective feeling of people is very uncomfortable；
If acceleration root mean square is planted>2.0, the subjective feeling of people is especially uncomfortable；
When the size of the root mean square of weighed acceleration for calculating meets two kinds of different comfortablenesses simultaneously to be experienced, comprehensively examine
Consider road evenness destruction and rehabilitation expense factor, the poor rank of selection comfortableness.
8. a kind of Asphalt Pavement Surface Evenness comfortableness method of tire according to claim 5, it is characterised in that：When plus
Power acceleration root-mean-square value>When 0.8, road evenness comfort is influenceed, it is necessary to test roads by very important
Repaired.
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| CN102607505A (en) * | 2012-03-23 | 2012-07-25 | 中国科学院深圳先进技术研究院 | Road evenness detection method and road evenness detection system |
| CN102644229A (en) * | 2011-02-16 | 2012-08-22 | 鸿富锦精密工业（深圳）有限公司 | Pavement evenness statistic system and method |
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| CN102261033A (en) * | 2011-05-03 | 2011-11-30 | 北京航空航天大学 | Inertial measurement unit (IMU) based motion compensation algorithm of vehicular pavement detection system |
| CN102607505A (en) * | 2012-03-23 | 2012-07-25 | 中国科学院深圳先进技术研究院 | Road evenness detection method and road evenness detection system |
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