CN109323872A - A kind of vehicle noise objective decomposition method, the apparatus and system of rail traffic vehicles - Google Patents
A kind of vehicle noise objective decomposition method, the apparatus and system of rail traffic vehicles Download PDFInfo
- Publication number
- CN109323872A CN109323872A CN201811287512.5A CN201811287512A CN109323872A CN 109323872 A CN109323872 A CN 109323872A CN 201811287512 A CN201811287512 A CN 201811287512A CN 109323872 A CN109323872 A CN 109323872A
- Authority
- CN
- China
- Prior art keywords
- noise
- vehicle
- objective
- noise objective
- preset condition
- 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.)
- Pending
Links
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
- G01M17/08—Railway vehicles
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The invention discloses vehicle noise objective decomposition method, device, system and the computer readable storage mediums of a kind of rail traffic vehicles, the noise objective including obtaining each noise component of vehicle in the initial state；Noise objective according to each noise component calculates the internal car noise and pass-by noise of vehicle, obtains the predicted value of each vehicle noise objective；Judge whether the predicted value of each vehicle noise objective is all satisfied corresponding preset condition, if so, entering the noise objective of each noise component current in output vehicle；If not, then modify to the noise objective for the corresponding noise component of vehicle noise objective for being unsatisfactory for corresponding preset condition, it is updated with the noise component to vehicle, and the step of executing the noise objective for obtaining each noise component of vehicle in the initial state is returned, until the predicted value of each vehicle noise objective is all satisfied corresponding preset condition.Be conducive to the fortune difficulty and cost for promoting vehicle performance, reducing the vehicle later period.
Description
Technical field
The present embodiments relate to technical field of rail traffic, more particularly to a kind of vehicle noise of rail traffic vehicles
Index decomposition method, apparatus, system and computer readable storage medium.
Background technique
Rail traffic vehicles as a kind of large conveying quantity, quick, safety, on schedule, the public public transport work of energy-saving and environmental protection
Tool, has become the important component of each large and medium-sized urban public transport.As rail line is in each large- and-medium size cities
Open-minded successively, the noise attention rate that people multiply space and vehicle external environment to department is higher and higher, it is desirable that also higher and higher.
Currently, the internal car noise source of rail traffic vehicles includes wheel-rail noise, trailer system noise, air-conditioning noise etc.,
Noise outside car can be reduced by the limit value for controlling each noise source and the oise insulation factor for increasing each siding in compartment.However, noise control
System is a system engineering, and interior outer noise source is more, transmission path complexity, once and if vehicle manufacture noise is exceeded out
It is just more difficult to remedy.
It in the prior art, is usually that people is carried out according to real train test result early period and design experiences in vehicle Noise Design
For judgement, index decomposition will not be carried out to noise, therefore tend to occur newly making the exceeded phenomenon of vehicle noise, after making vehicle
The maintenance work difficulty of phase is larger, and the human and material resources of required investment are more.
In consideration of it, how to provide a kind of vehicle noise objective decomposition side of rail traffic vehicles for solving above-mentioned technical problem
Method, device, system and computer readable storage medium become skilled person's problem to be solved.
Summary of the invention
The purpose of the embodiment of the present invention is that provide a kind of vehicle noise objective decomposition method of rail traffic vehicles, device,
System and computer readable storage medium can reasonably decompose the vehicle noise objective of vehicle respectively at Car design initial stage
In a noise component, to reduce the generation that the exceeded phenomenon of noise occurs after making it in vehicle, facilitate promoted vehicle performance,
Reduce the O&M difficulty and cost in vehicle later period.
In order to solve the above technical problems, the embodiment of the invention provides the vehicle noise objectives of a kind of rail traffic vehicles point
Solution method, comprising:
S110: the noise objective of each noise component of vehicle in the initial state is obtained；
S120: the noise objective according to each noise component carries out the internal car noise and pass-by noise of the vehicle
It calculates, obtains the predicted value of each vehicle noise objective；
S130: judging whether the predicted value of each vehicle noise objective is all satisfied corresponding preset condition, if so,
Into S150；If it is not, then entering S140；
S140: the noise objective for the corresponding noise component of vehicle noise objective for being unsatisfactory for corresponding preset condition is repaired
Change, be updated with the noise component to the vehicle, and return to S110, until the predicted value of each vehicle noise objective
It is all satisfied corresponding preset condition；
S150: the noise objective of each noise component current in the vehicle is exported.
Optionally, whether the predicted value for judging each vehicle noise objective is all satisfied corresponding preset condition
Process are as follows:
Whether the difference of the predicted value and corresponding vehicle noise objective limit value that judge each vehicle noise objective is equal
In corresponding preset range, if so, each vehicle noise objective meets corresponding preset condition, if it is not, then each
The vehicle noise objective is unsatisfactory for corresponding preset condition.
Optionally, the noise component includes noise source block and sound proof member；The method also includes:
Noise objective according to each noise component calculates make an uproar corresponding with each noise source block
Sound source contribution amount and transmission path contribution amount corresponding with each sound proof member.
Optionally, the vehicle noise objective includes internal car noise index and pass-by noise index；
Then, the noise objective of the described pair of corresponding noise component of vehicle noise objective for being unsatisfactory for corresponding preset condition carries out
The process of modification includes:
Whether the vehicle noise objective that corresponding preset condition is unsatisfactory for described in judgement includes pass-by noise index, if so,
It determines target noise source block to be optimized, and modifies to the noise objective of target noise source block；If it is not, then judging
In the vehicle noise objective for being unsatisfactory for corresponding preset condition whether include internal car noise index, if so, first determine to
The target noise source block of optimization, and the noise objective of target noise source block is optimized, then determine target sound insulation portion
Part, and the noise objective of target sound proof member is optimized.
Optionally, described to determine target noise source block to be optimized, and to the noise objective of target noise source block
The process optimized are as follows:
Noise source contribution amount corresponding with each noise source block is ranked up, noise source contribution amount is obtained
Maximum adjustable noise source is as target noise source block；
The frequency spectrum parameter of the target noise source block is subjected to downgrade processing, and according to the frequency spectrum parameter after downgrade processing
It modifies to the acoustical power of the target noise source block.
Optionally, described to determine target sound proof member, and to the mistake that the noise objective of target sound proof member optimizes
Journey are as follows:
Transmission path contribution amount corresponding with each sound proof member is ranked up, by transmission path contribution amount
Maximum sound proof member is as target sound proof member；
Improve the sound insulation frequency spectrum parameter and sound insulation quantity of the target sound proof member.
The embodiment of the present invention provides a kind of vehicle noise objective decomposer of rail traffic vehicles accordingly, comprising:
Module is obtained, for obtaining the noise objective of each noise component of vehicle in the initial state；
Computing module, for according to each noise component noise objective and vehicle noise solver to the vehicle
Internal car noise and pass-by noise calculated, obtain the predicted value of each vehicle noise objective；
Judgment module, for judging whether the predicted value of each vehicle noise objective is all satisfied default item accordingly
Part, if so, triggering output module；If it is not, then triggering modified module；
The modified module, for making an uproar to the corresponding noise component of vehicle noise objective for being unsatisfactory for corresponding preset condition
Sound index is modified, and is updated with the noise component to the vehicle, and triggers the acquisition module, until each described
The predicted value of vehicle noise objective is all satisfied corresponding preset condition；
The output module, for exporting the noise objective of each noise component current in the vehicle.
Optionally, the judgment module, specifically for judging the predicted value of each vehicle noise objective and corresponding
Whether the difference of vehicle noise objective limit value is in corresponding preset range, if so, triggering the output module；If it is not,
Then trigger the modified module.
The embodiment of the invention also provides a kind of vehicle noise objective decomposing systems of rail traffic vehicles, comprising:
Memory, for storing computer program；
Processor realizes the vehicle noise of rail traffic vehicles as described above when for executing the computer program
The step of index decomposition method.
The embodiment of the invention also provides a kind of computer readable storage medium, deposited on the computer readable storage medium
Computer program is contained, the computer program realizes the vehicle of rail traffic vehicles as described above when being executed by processor
The step of noise objective decomposition method.
The embodiment of the invention provides a kind of vehicle noise objective decomposition method of rail traffic vehicles, device, system and
Computer readable storage medium, this method comprises: obtaining the noise objective of each noise component of vehicle in the initial state；According to
The internal car noise and pass-by noise of vehicle are calculated according to the noise objective of each noise component, each vehicle noise is obtained and refers to
Target predicted value；Judge whether the predicted value of each vehicle noise objective is all satisfied corresponding preset condition, if so, into defeated
The noise objective of each noise component current in vehicle out；If it is not, then referring to the vehicle noise for being unsatisfactory for corresponding preset condition
The noise objective for marking corresponding noise component is modified, and is updated with the noise component to vehicle, and return and execute acquisition
The step of noise objective of each noise component of vehicle in the initial state, until the predicted value of each vehicle noise objective is equal
Meet corresponding preset condition.
As it can be seen that can be according to each noise component under vehicle original state after vehicle carries out initial designs in the application
Noise objective calculate the predicted value of each vehicle noise objective, and be capable of determining that currently according to corresponding preset condition
Whether each vehicle noise objective of vehicle meets the requirements, when being unsatisfactory for requiring, to the noise objective of corresponding noise component
It modifies, and recalculates the predicted value of each vehicle noise objective, until all vehicle noise objectives are all satisfied accordingly
Preset condition, to obtain the noise objective of the current each noise component of vehicle.The application can be at Car design initial stage
The vehicle noise objective of vehicle is reasonably decomposed in each noise component, to reduce vehicle, to occur noise after making it super
The generation of target phenomenon facilitates the O&M difficulty and cost for promoting vehicle performance, reducing the vehicle later period.
Detailed description of the invention
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to institute in the prior art and embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is that a kind of process of the vehicle noise objective decomposition method of rail traffic vehicles provided in an embodiment of the present invention is shown
It is intended to；
Fig. 2 is the process of the vehicle noise objective decomposition method of another rail traffic vehicles provided in an embodiment of the present invention
Schematic diagram；
Fig. 3 is that a kind of structure of the vehicle noise objective decomposer of rail traffic vehicles provided in an embodiment of the present invention is shown
It is intended to.
Specific embodiment
The embodiment of the invention provides a kind of vehicle noise objective decomposition method of rail traffic vehicles, device, system and
The vehicle noise objective of vehicle can reasonably be decomposed each noise at Car design initial stage by computer readable storage medium
On component, to reduce the generation that the exceeded phenomenon of noise occurs after making it in vehicle, helps to promote vehicle performance, reduces vehicle
The O&M difficulty and cost in later period.
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
Fig. 1 is please referred to, Fig. 1 is a kind of vehicle noise objective decomposition side of rail traffic vehicles provided in an embodiment of the present invention
The flow diagram of method.This method comprises:
S110: the noise objective of each noise component of vehicle in the initial state is obtained；
It should be noted that at Car design initial stage vehicle noise side can be carried out previously according to design experiences and project demand
Case Preliminary design specifically includes each noise source parts selection and the design of each sound proof member etc., so that it is determined that vehicle is first out
Step design when (namely original state in the application) each noise component noise objective, wherein noise source block and every
Part part is referred to as noise component.How specific be according to the actual situation the prior art, the application to vehicle progress Preliminary design
Details are not described herein, and the application only needs after the completion of the Preliminary design of vehicle, and it is current (namely under original state) to obtain vehicle
Each noise component noise objective, wherein the noise objective of noise source block include noise source power and noise spectrum ginseng
Number etc., the noise objective of sound proof member include sound insulation frequency spectrum etc..
S120: the noise objective according to each noise component calculates the internal car noise and pass-by noise of vehicle, obtains
To the predicted value of each vehicle noise objective；
Specifically, can be counted using vehicle noise solver to the internal car noise and pass-by noise of vehicle in the application
It calculates, obtains the predicted value of each vehicle noise objective, wherein vehicle noise solver can be for using VAOne or Ansys tool
The vehicle noise solver of foundation.In addition, the vehicle noise objective in the application can specifically include internal car noise index and vehicle
Outer noise objective, wherein internal car noise index may include static drivers' cab and passenger compartment noise index, operation drivers' cab and guest room
Noise objective, tunnel run drivers' cab and passenger compartment noise index etc., pass-by noise index may include static pass-by noise index,
Run pass-by noise index.
S130: judging whether the predicted value of each vehicle noise objective is all satisfied corresponding preset condition, if so, into
S150；If it is not, then entering S140；
It should be noted that each vehicle noise objective has corresponding preset condition, which specifically may be used
It is determined with presetting according to actual needs.When the predicted value of each vehicle noise objective is all satisfied corresponding preset condition
When, then illustrate that the noise objective of the current each noise component of vehicle meets the requirements, completes vehicle noise objective and make an uproar each
Decomposition in part part；When being unsatisfactory for corresponding preset condition there are the predicted value of vehicle noise index, then need at this time pair
The noise objective of corresponding noise devices is modified, to reduce vehicle noise figure.
S140: the noise objective for the corresponding noise component of vehicle noise objective for being unsatisfactory for corresponding preset condition is repaired
Change, be updated with the noise component to vehicle, and return to S110, until the predicted value of each vehicle noise objective is all satisfied phase
The preset condition answered.
Specifically, when being unsatisfactory for corresponding preset condition there are the predicted value of vehicle noise index, to corresponding vehicle
The noise objective of the corresponding noise component of noise objective is modified, such as after modifying to the noise objective of noise component 1,
The noise objective of noise component 1 is updated to modified noise objective, reacquires the current each noise component of vehicle at this time
Noise objective, and re-start the predictor calculation of each vehicle noise objective, and judge according to corresponding preset condition
Whether each vehicle noise objective is all satisfied corresponding preset condition, when still in the presence of the vehicle for being unsatisfactory for corresponding preset condition
It when noise objective, then modifies to the noise objective of corresponding noise component, until each vehicle noise objective of vehicle is pre-
Measured value is all satisfied corresponding preset condition, namely completes decomposition of the whole vehicle noise objective in each noise component.
S150: the noise objective of current each noise component in output vehicle.
As it can be seen that can be according to each noise component under vehicle original state after vehicle carries out initial designs in the application
Noise objective calculate the predicted value of each vehicle noise objective, and be capable of determining that currently according to corresponding preset condition
Whether each vehicle noise objective of vehicle meets the requirements, when being unsatisfactory for requiring, to the noise objective of corresponding noise component
It modifies, and recalculates the predicted value of each vehicle noise objective, until all vehicle noise objectives are all satisfied accordingly
Preset condition, to obtain the noise objective of the current each noise component of vehicle.The application can be at Car design initial stage
The vehicle noise objective of vehicle is reasonably decomposed in each noise component, to reduce vehicle, to occur noise after making it super
The generation of target phenomenon facilitates the O&M difficulty and cost for promoting vehicle performance, reducing the vehicle later period.
On the basis of the above embodiments, the present embodiment has made further instruction and optimization to technical solution.Specifically such as
Under:
Further, judge whether the predicted value of each vehicle noise objective is all satisfied corresponding preset in above-mentioned S130
The process of condition, is specifically as follows:
Whether the difference of the predicted value and corresponding vehicle noise objective limit value that judge each vehicle noise objective is in phase
In the preset range answered, if so, each vehicle noise objective meets corresponding preset condition, if it is not, then each vehicle noise
Index is unsatisfactory for corresponding preset condition.
It is understood that predefining according to actual needs in practical applications corresponding with each vehicle noise objective
Vehicle noise objective limit value, and by the difference of the predicted value of each vehicle noise objective and corresponding vehicle noise objective limit value
Matched with corresponding preset range, when the difference within a preset range when to illustrate that corresponding vehicle noise objective meets default
The requirement of condition, otherwise, then corresponding vehicle noise objective is unsatisfactory for the requirement of preset condition, when wherein there is a vehicle noise
When index is unsatisfactory for corresponding preset condition, then the noise objective to corresponding noise component is needed to modify.
For example, the predicted value of static drivers' cab and passenger compartment noise index and static drivers' cab and passenger compartment noise index are limited
It is made the difference, when obtained difference is in corresponding preset range, illustrates that the static state drivers' cab and passenger compartment noise index meet
Otherwise corresponding preset condition is unsatisfactory for, then need to noise component corresponding with the static state drivers' cab and passenger compartment noise index
Noise objective modify, to reduce vehicle noise figure.The present embodiment default model by vehicle noise objective limit value and accordingly
It encloses as judgment basis, can be improved judging nicety rate, accelerate decomposable process.
Further, this method further include:
Noise objective according to each noise component calculates noise source contribution corresponding with each noise source block
Amount and transmission path contribution amount corresponding with each sound proof member.
Specifically, the noise component in the application includes noise source block and sound proof member.This method can also be in foundation
The noise objective of each noise component calculates the internal car noise and pass-by noise of vehicle, obtains each vehicle noise objective
Predicted value and then calculate noise source contribution amount corresponding with each noise source block and with each sound proof member point
Not corresponding transmission path contribution amount, sequencing the application are not specifically limited.
Wherein, noise source contribution amount refers to specifying making an uproar for observation point when each noise source independent role in the car or outside vehicle
Several sizes arbitrarily downgraded；Transmission path contribution amount refers to that each sound proof member in observation area (sound insulation wall) is specified to transmit in the car
The size of the noise sound to come over.In addition, the noise source block in the application may include motor, gear-box, traction frequency conversion
Device etc., sound proof member may include the combined plates such as floor, side wall, top cover.
Specifically, vehicle noise objective includes internal car noise index and pass-by noise index；
Wherein, internal car noise index may include that static drivers' cab and passenger compartment noise index, operation drivers' cab and guest room are made an uproar
Sound index, tunnel run drivers' cab and passenger compartment noise index etc., and pass-by noise index may include static pass-by noise index, fortune
The outer noise objective of driving.
Further, to the corresponding noise component of vehicle noise objective for being unsatisfactory for corresponding preset condition in above-mentioned S140
The process modified of noise objective, can specifically include:
Judgement is unsatisfactory for whether the vehicle noise objective of corresponding preset condition includes pass-by noise index, if so, determining
Target noise source block to be optimized out, and modify to the noise objective of target noise source block；If it is not, then judgement is discontented
It whether include internal car noise index in the vehicle noise objective of the corresponding preset condition of foot, if so, first determining mesh to be optimized
Noise source block is marked, and the noise objective of target noise source block is optimized, then determine target sound proof member, and to mesh
The noise objective of mark sound proof member optimizes.
It should be noted that as shown in Fig. 2, determining that the vehicle noise objective for being unsatisfactory for corresponding preset condition is (such as whole
After vehicle noise objective n), the vehicle noise of corresponding preset condition can be unsatisfactory for using the expert reasoning system judgement pre-established
Whether index includes pass-by noise index, when including pass-by noise index, determines target noise source block to be optimized, and
It modifies to the noise objective of target noise source block.
Wherein it is determined that target noise source block to be optimized out, and the noise objective of target noise source block is carried out excellent
The process of change, is specifically as follows:
Noise source contribution amount corresponding with each noise source block is ranked up, it is maximum to obtain noise source contribution amount
Adjustable noise source as target noise source block；
The frequency spectrum parameter of target noise source block is subjected to downgrade processing, and according to the frequency spectrum parameter after downgrade processing to mesh
The acoustical power of mark noise source block is modified.
Specifically, when pass-by noise index does not reach the requirement of preset condition, then it can be by each noise source block
Noise source contribution amount it is descending be ranked up, and determine the maximum adjustable noise of noise source contribution amount in adjustable noise source
Source using the adjustable noise source as target noise source block, and carries out noise reduction process to the target noise source block, namely to this
The acoustical power and frequency spectrum parameter of target noise source block are modified, specifically can be by the target noise to reduce its noise figure
The frequency spectrum parameter of source block reduces on the basis of current spectral parameter and carries out reduction processing, such as reduces by 1~5dB, and according to
Modified frequency spectrum parameter calculates corresponding acoustical power, to determine the modified sound power value of target noise source block.Having
When body is modified, it can also come referring to pre-stored each noise source-acoustical power-frequency spectrum parameter corresponding relationship in database true
It is fixed which grade frequency spectrum parameter is reduced to.For example, the acoustical power of current target noise source block is A1, frequency spectrum parameter is
B1 can then find out making an uproar than current target noise source block according to the noise objective of each noise source stored in database
The noise source of the low level of sound index, if the acoustical power of the noise source is A2, frequency spectrum parameter B2, and by the origin of target noise
Noise objective be revised as A2 and B2, if corresponding vehicle noise objective is still after to the modification of the noise objective of target noise component
It is unsatisfactory for corresponding preset condition, if there is still a need for the noise objectives to the target noise component to modify, which is made an uproar
The noise objective of part part reduces a level again.Wherein, the noise objective of target noise component is modified, namely from number
The target noise component is replaced according to the noise component of a level lower than the noise objective of target noise component is selected in library,
The noise objective (acoustical power and frequency spectrum parameter) of the noise component of a low level is referred to as the noise of target noise component
Mark.
It should also be noted that, can also specifically further determine that the static pass-by noise in pass-by noise index refers to
Which noise objective in mark and operation pass-by noise index does not reach the requirement of preset condition, can be first if both existing
The noise objective of noise component corresponding with static pass-by noise index is optimized, is then referred to again to operation pass-by noise
The noise objective for marking corresponding noise component optimizes.
In addition, when the vehicle noise objective for being unsatisfactory for corresponding preset condition does not include pass-by noise index, then judge be
No includes that internal car noise index then first determines target noise source block to be optimized, and right when including internal car noise index
The noise objective of target noise source block optimizes, then determines target sound proof member, and to the noise of target sound proof member
Index optimizes.
Wherein it is determined that target noise source block to be optimized out, and the noise objective of target noise source block is carried out excellent
The process of change please refers to above-mentioned introduction, and details are not described herein by the application.
It is above-mentioned to determine target sound proof member, and to the process that the noise objective of target sound proof member optimizes, specifically
It can be with are as follows:
Transmission path contribution amount corresponding with each sound proof member is ranked up, transmission path contribution amount is maximum
Sound proof member as target sound proof member；
Improve the sound insulation frequency spectrum parameter and sound insulation quantity of target sound proof member.
Specifically, can be by transmission path contribution amount corresponding with each sound proof member according to sequence from big to small
It is ranked up, the transmission path contribution amount the big, illustrates that soundproof effect is poorer, so at this time that transmission path contribution amount is maximum
Sound proof member is optimized as target sound proof member, and to the noise objective of the target sound proof member.Choosing can specifically be passed through
The sound insulation frequency spectrum parameter for selecting a level higher than the sound insulation frequency spectrum parameter of target sound proof member is modified as the target sound proof member
Sound insulation frequency parameter afterwards, and corresponding sound insulation quantity is calculated according to modified sound insulation frequency spectrum parameter, thus to target sound insulation portion
The sound insulation quantity of part is modified.Also will the target sound proof member be updated to sound insulation the biggish sound proof member of frequency spectrum parameter, and
Its sound insulation quantity is modified accordingly.In practical applications, can insulate against sound by each sound proof member and accordingly frequency spectrum parameter in advance
It is stored into database with oise insulation factor, sound insulation frequency spectrum parameter and oise insulation factor to target sound proof member is being needed to modify
When, then the sound proof member pair of a level higher than the sound insulation frequency spectrum parameter of target sound proof member can be selected directly from database
The target sound proof member is updated, wherein the sound insulation quantity of sound proof member is according to the sound insulation frequency spectrum parameter with the sound proof member
Calculating.
In addition, sound proof member is usually compoboard sound proof member, need to calculate each group when pre-establishing database
The sound insulation frequency spectrum of plywood sound proof member, wherein the sound insulation frequency spectrum for calculating compoboard sound proof member, which refers to, to be referred in reasonable oise insulation factor
In upper and lower limits, is calculated by the combination to existing various lamina databases and obtain higher compoboard oise insulation factor, it is each
The combination oise insulation factor calculation formula of lamina are as follows:
R=20*log10 (10^ (R1/20)+10^ (R2/20)+...+10^ (Rn/20)), wherein R1, R2 ..., Rn be each
The oise insulation factor of lamina, R are combination oise insulation factor.
Vehicle noise objective decomposition method provided in this embodiment is simply easily operated, on the basis of the above embodiments,
The accuracy for further improving analysis efficiency and vehicle noise objective being decomposed.
On the basis of the above embodiments, the vehicle that the embodiment of the present invention has been correspondingly improved a kind of rail traffic vehicles is made an uproar
Sound index decomposition device, specifically referring to figure 3..The device includes:
Module 31 is obtained, for obtaining the noise objective of each noise component of vehicle in the initial state；
Computing module 32, for according to each noise component noise objective and vehicle noise solver to the car of vehicle
Noise and pass-by noise are calculated, and the predicted value of each vehicle noise objective is obtained；
Judgment module 33, for judging whether the predicted value of each vehicle noise objective is all satisfied corresponding preset condition,
If so, triggering output module 35；If it is not, then triggering modified module 34；
Modified module 34, for the noise to the corresponding noise component of vehicle noise objective for being unsatisfactory for corresponding preset condition
Index is modified, and is updated with the noise component to vehicle, and is triggered and obtained module 31, until each vehicle noise objective
Predicted value be all satisfied corresponding preset condition.
Output module 35, for exporting the noise objective of each noise component current in vehicle.
Further, judgment module 33, specifically for judge each vehicle noise objective predicted value and corresponding vehicle
Whether the difference of noise objective limit value is in corresponding preset range, if so, triggering output module 45；If it is not, then triggering
Modified module 34.
Further, noise component includes noise source block and sound proof member；Computing module 32 is also used to according to each institute
State noise component noise objective calculate noise source contribution amount corresponding with each noise source block and with it is each
The corresponding transmission path contribution amount of the sound proof member.
Further, vehicle noise objective includes internal car noise index and pass-by noise index；
Then, modified module 34 includes:
First judging unit described is unsatisfactory for whether the vehicle noise objective of corresponding preset condition includes outside vehicle for judging
Noise objective, if so, triggering the first modification unit；If it is not, then triggering second judgment unit；
The first modification unit, for determining target noise source block to be optimized, and to target noise source block
Noise objective modify；
Second judgment unit, for judging described whether be unsatisfactory in the vehicle noise objective of corresponding preset condition including vehicle
Interior noise objective, if so, triggering the second modification unit；
Second modification unit, for first determining target noise source block to be optimized, and to target noise source block
Noise objective optimizes, then determines target sound proof member, and optimizes to the noise objective of target sound proof member.
It should be noted that the vehicle noise objective decomposer of rail traffic vehicles provided in this embodiment have with it is upper
The identical beneficial effect of vehicle noise objective decomposition method of the rail traffic vehicles of embodiment offer is stated, and for this implementation
The specific introduction of the vehicle noise objective decomposition method of involved rail traffic vehicles please refers to above method implementation in example
Example, details are not described herein by the application.
On the basis of the above embodiments, the embodiment of the invention also provides a kind of vehicle noises of rail traffic vehicles to refer to
Decomposing system is marked, which includes:
Memory, for storing computer program；
Processor realizes that the vehicle noise objective such as above-mentioned rail traffic vehicles decomposes when for executing computer program
The step of method.
For example, processor in the present embodiment is for realizing obtaining making an uproar for each noise component of vehicle in the initial state
Sound index；Noise objective according to each noise component calculates the internal car noise and pass-by noise of vehicle, obtains each
The predicted value of vehicle noise objective；Judge whether the predicted value of each vehicle noise objective is all satisfied corresponding preset condition, if
It is then to enter the noise objective of each noise component current in output vehicle；If it is not, then to being unsatisfactory for corresponding preset condition
The noise objective of the corresponding noise component of vehicle noise objective is modified, and is updated with the noise component to vehicle, and return
Receipt row obtains the step of noise objective of each noise component of vehicle in the initial state, until each vehicle noise objective
Predicted value be all satisfied corresponding preset condition.
On the basis of the above embodiments, the embodiment of the invention also provides a kind of computer readable storage mediums, calculate
It is stored with computer program on machine readable storage medium storing program for executing, such as above-mentioned rail traffic is realized when computer program is executed by processor
The step of vehicle noise objective decomposition method of vehicle.
The computer readable storage medium may include: USB flash disk, mobile hard disk, read-only memory (Read-Only
Memory, ROM), random access memory (Random Access Memory, RAM), magnetic or disk etc. is various to deposit
Store up the medium of program code.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.For device disclosed in embodiment
For, since it is corresponded to the methods disclosed in the examples, so being described relatively simple, related place is said referring to method part
It is bright.
It should also be noted that, in the present specification, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant meaning
Covering non-exclusive inclusion, so that the process, method, article or equipment for including a series of elements not only includes that
A little elements, but also including other elements that are not explicitly listed, or further include for this process, method, article or
The intrinsic element of equipment.In the absence of more restrictions, the element limited by sentence "including a ...", is not arranged
Except there is also other identical elements in the process, method, article or apparatus that includes the element.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (10)
1. a kind of vehicle noise objective decomposition method of rail traffic vehicles characterized by comprising
S110: the noise objective of each noise component of vehicle in the initial state is obtained；
S120: the noise objective according to each noise component counts the internal car noise and pass-by noise of the vehicle
It calculates, obtains the predicted value of each vehicle noise objective；
S130: judging whether the predicted value of each vehicle noise objective is all satisfied corresponding preset condition, if so, into
S150；If it is not, then entering S140；
S140: modifying to the noise objective for the corresponding noise component of vehicle noise objective for being unsatisfactory for corresponding preset condition,
It is updated with the noise component to the vehicle, and returns to S110, until the predicted value of each vehicle noise objective is equal
Meet corresponding preset condition；
S150: the noise objective of each noise component current in the vehicle is exported.
2. the vehicle noise objective decomposition method of rail traffic vehicles according to claim 1, which is characterized in that described to sentence
Whether the predicted value of each vehicle noise objective of breaking is all satisfied the process of corresponding preset condition are as follows:
Whether the difference of the predicted value and corresponding vehicle noise objective limit value that judge each vehicle noise objective is in phase
In the preset range answered, if so, each vehicle noise objective meets corresponding preset condition, if it is not, then each described
Vehicle noise objective is unsatisfactory for corresponding preset condition.
3. the vehicle noise objective decomposition method of rail traffic vehicles according to claim 2, which is characterized in that described to make an uproar
Part part includes noise source block and sound proof member；The method also includes:
Noise objective according to each noise component calculates noise source corresponding with each noise source block
Contribution amount and transmission path contribution amount corresponding with each sound proof member.
4. the vehicle noise objective decomposition method of rail traffic vehicles according to claim 3, which is characterized in that described whole
Vehicle noise objective includes internal car noise index and pass-by noise index；
Then, the noise objective of the described pair of corresponding noise component of vehicle noise objective for being unsatisfactory for corresponding preset condition is modified
Process include:
Whether the vehicle noise objective that corresponding preset condition is unsatisfactory for described in judgement includes pass-by noise index, if so, determining
Target noise source block to be optimized out, and modify to the noise objective of target noise source block；If it is not, then described in judgement
It is unsatisfactory in the vehicle noise objective of corresponding preset condition whether including internal car noise index, if so, first determining to be optimized
Target noise source block, and the noise objective of target noise source block is optimized, then determine target sound proof member, and
The noise objective of target sound proof member is optimized.
5. the vehicle noise objective decomposition method of rail traffic vehicles according to claim 4, which is characterized in that described true
Target noise source block to be optimized is made, and to the process that the noise objective of target noise source block optimizes are as follows:
Noise source contribution amount corresponding with each noise source block is ranked up, it is maximum to obtain noise source contribution amount
Adjustable noise source as target noise source block；
The frequency spectrum parameter of the target noise source block is subjected to downgrade processing, and according to the frequency spectrum parameter after downgrade processing to institute
The acoustical power for stating target noise source block is modified.
6. the vehicle noise objective decomposition method of rail traffic vehicles according to claim 5, which is characterized in that described true
Target sound proof member is made, and to the process that the noise objective of target sound proof member optimizes are as follows:
Transmission path contribution amount corresponding with each sound proof member is ranked up, transmission path contribution amount is maximum
Sound proof member as target sound proof member；
Improve the sound insulation frequency spectrum parameter and corresponding sound insulation quantity of the target sound proof member.
7. a kind of vehicle noise objective decomposer of rail traffic vehicles characterized by comprising
Module is obtained, for obtaining the noise objective of each noise component of vehicle in the initial state；
Computing module, for according to each noise component noise objective and vehicle noise solver to the vehicle of the vehicle
Interior noise and pass-by noise are calculated, and the predicted value of each vehicle noise objective is obtained；
Judgment module, for judging whether the predicted value of each vehicle noise objective is all satisfied corresponding preset condition, if
It is then to trigger output module；If it is not, then triggering modified module；
The modified module refers to for the noise to the corresponding noise component of vehicle noise objective for being unsatisfactory for corresponding preset condition
Mark is modified, and is updated with the noise component to the vehicle, and triggers the acquisition module, until each vehicle
The predicted value of noise objective is all satisfied corresponding preset condition；
The output module, for exporting the noise objective of each noise component current in the vehicle.
8. the vehicle noise objective decomposer of rail traffic vehicles according to claim 7, which is characterized in that described to sentence
Disconnected module, specifically for judging the predicted value of each vehicle noise objective and the difference of corresponding vehicle noise objective limit value
Whether in corresponding preset range, if so, triggering the output module；If it is not, then triggering the modified module.
9. a kind of vehicle noise objective decomposing system of rail traffic vehicles characterized by comprising
Memory, for storing computer program；
Processor realizes the rail vehicle as described in claim 1 to 6 any one when for executing the computer program
Vehicle noise objective decomposition method the step of.
10. a kind of computer readable storage medium, which is characterized in that be stored with computer on the computer readable storage medium
Program realizes the rail traffic vehicles as described in claim 1 to 6 any one when the computer program is executed by processor
Vehicle noise objective decomposition method the step of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811287512.5A CN109323872A (en) | 2018-10-31 | 2018-10-31 | A kind of vehicle noise objective decomposition method, the apparatus and system of rail traffic vehicles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811287512.5A CN109323872A (en) | 2018-10-31 | 2018-10-31 | A kind of vehicle noise objective decomposition method, the apparatus and system of rail traffic vehicles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109323872A true CN109323872A (en) | 2019-02-12 |
Family
ID=65259924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811287512.5A Pending CN109323872A (en) | 2018-10-31 | 2018-10-31 | A kind of vehicle noise objective decomposition method, the apparatus and system of rail traffic vehicles |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109323872A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110502844A (en) * | 2019-08-27 | 2019-11-26 | 中车株洲电力机车有限公司 | A kind of optimum design method of rail traffic vehicles noisy digit model machine |
| CN111931291A (en) * | 2020-07-27 | 2020-11-13 | 中国第一汽车股份有限公司 | Noise index decomposition method considering cost |
| CN112163274A (en) * | 2020-09-25 | 2021-01-01 | 中车长春轨道客车股份有限公司 | Low-noise optimization design method and system in vehicle |
| CN112287551A (en) * | 2020-10-30 | 2021-01-29 | 重庆长安汽车股份有限公司 | Driving performance system level index decomposition method based on whole vehicle conceptual model |
| CN112818539A (en) * | 2021-01-29 | 2021-05-18 | 中车青岛四方机车车辆股份有限公司 | Sound insulation design method and sound insulation design system for window |
| CN113190968A (en) * | 2021-04-06 | 2021-07-30 | 潍柴动力股份有限公司 | Method and device for determining noise development index of subsystem to be updated in whole vehicle |
| CN113358211A (en) * | 2021-05-28 | 2021-09-07 | 徐工集团工程机械有限公司 | Noise testing method and device |
| CN114547929A (en) * | 2022-01-19 | 2022-05-27 | 中国民用航空飞行学院 | Acoustic index decomposition method for rail train body composite structure |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101271022A (en) * | 2008-05-15 | 2008-09-24 | 上海交通大学 | Transmission path detecting system for vehicle system structure vibration and noise |
| KR20100054381A (en) * | 2008-11-14 | 2010-05-25 | 한양대학교 산학협력단 | Analysis system of transfer path for vibration/noise and analysis method of transfer path for vibration/noise |
| CN103630232A (en) * | 2013-10-29 | 2014-03-12 | 南车青岛四方机车车辆股份有限公司 | Noise source identifying and testing method for high speed train |
| CN105222886A (en) * | 2015-08-31 | 2016-01-06 | 华南理工大学 | A kind of method carrying high-precision operating mode Transfer path analysis of improvement |
| CN106153185A (en) * | 2016-06-15 | 2016-11-23 | 铁道第三勘察设计院集团有限公司 | Source Spectrum computational methods are divided in high-speed railway noise source |
| CN106996828A (en) * | 2017-05-04 | 2017-08-01 | 安徽江淮汽车集团股份有限公司 | The method for predicting the in-car noise contribution amount size of accelerating mode |
| CN107745721A (en) * | 2017-10-16 | 2018-03-02 | 中车唐山机车车辆有限公司 | EMUs Low Noise Design method |
| CN107860596A (en) * | 2017-12-13 | 2018-03-30 | 西南交通大学 | A kind of vehicle body of railway vehicle air-borne sound path contributions recognition methods |
-
2018
- 2018-10-31 CN CN201811287512.5A patent/CN109323872A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101271022A (en) * | 2008-05-15 | 2008-09-24 | 上海交通大学 | Transmission path detecting system for vehicle system structure vibration and noise |
| KR20100054381A (en) * | 2008-11-14 | 2010-05-25 | 한양대학교 산학협력단 | Analysis system of transfer path for vibration/noise and analysis method of transfer path for vibration/noise |
| CN103630232A (en) * | 2013-10-29 | 2014-03-12 | 南车青岛四方机车车辆股份有限公司 | Noise source identifying and testing method for high speed train |
| CN105222886A (en) * | 2015-08-31 | 2016-01-06 | 华南理工大学 | A kind of method carrying high-precision operating mode Transfer path analysis of improvement |
| CN106153185A (en) * | 2016-06-15 | 2016-11-23 | 铁道第三勘察设计院集团有限公司 | Source Spectrum computational methods are divided in high-speed railway noise source |
| CN106996828A (en) * | 2017-05-04 | 2017-08-01 | 安徽江淮汽车集团股份有限公司 | The method for predicting the in-car noise contribution amount size of accelerating mode |
| CN107745721A (en) * | 2017-10-16 | 2018-03-02 | 中车唐山机车车辆有限公司 | EMUs Low Noise Design method |
| CN107860596A (en) * | 2017-12-13 | 2018-03-30 | 西南交通大学 | A kind of vehicle body of railway vehicle air-borne sound path contributions recognition methods |
Non-Patent Citations (1)
| Title |
|---|
| 白海飞: "动车组噪声振动传递路径测试与分析", 《中国优秀硕士学位论文全文数据库•工程科技Ⅱ辑》 * |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110502844A (en) * | 2019-08-27 | 2019-11-26 | 中车株洲电力机车有限公司 | A kind of optimum design method of rail traffic vehicles noisy digit model machine |
| CN111931291A (en) * | 2020-07-27 | 2020-11-13 | 中国第一汽车股份有限公司 | Noise index decomposition method considering cost |
| CN111931291B (en) * | 2020-07-27 | 2022-10-28 | 中国第一汽车股份有限公司 | Noise index decomposition method considering cost |
| CN112163274B (en) * | 2020-09-25 | 2021-08-06 | 中车长春轨道客车股份有限公司 | Low-noise optimization design method and system in vehicle |
| CN112163274A (en) * | 2020-09-25 | 2021-01-01 | 中车长春轨道客车股份有限公司 | Low-noise optimization design method and system in vehicle |
| CN112287551A (en) * | 2020-10-30 | 2021-01-29 | 重庆长安汽车股份有限公司 | Driving performance system level index decomposition method based on whole vehicle conceptual model |
| CN112287551B (en) * | 2020-10-30 | 2022-04-08 | 重庆长安汽车股份有限公司 | Driving performance system level index decomposition method based on whole vehicle conceptual model |
| CN112818539A (en) * | 2021-01-29 | 2021-05-18 | 中车青岛四方机车车辆股份有限公司 | Sound insulation design method and sound insulation design system for window |
| CN113190968A (en) * | 2021-04-06 | 2021-07-30 | 潍柴动力股份有限公司 | Method and device for determining noise development index of subsystem to be updated in whole vehicle |
| CN113190968B (en) * | 2021-04-06 | 2022-08-23 | 潍柴动力股份有限公司 | Method and device for determining noise development index of subsystem to be updated in whole vehicle |
| CN113358211A (en) * | 2021-05-28 | 2021-09-07 | 徐工集团工程机械有限公司 | Noise testing method and device |
| CN113358211B (en) * | 2021-05-28 | 2024-04-30 | 江苏徐工国重实验室科技有限公司 | Noise testing method and device |
| CN114547929A (en) * | 2022-01-19 | 2022-05-27 | 中国民用航空飞行学院 | Acoustic index decomposition method for rail train body composite structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109323872A (en) | A kind of vehicle noise objective decomposition method, the apparatus and system of rail traffic vehicles | |
| Li et al. | Battery SOC constraint comparison for predictive energy management of plug-in hybrid electric bus | |
| DE102014102819B4 (en) | Method of operating a hybrid vehicle | |
| CN105404746B (en) | A kind of reliability design approach of long slope sections | |
| CN1991845A (en) | Interdynamic virtual realizing method for tunnel compound monitoring control | |
| WO2022061944A1 (en) | Vehicle interior low noise optimization design method, and system | |
| DE102012200108A1 (en) | Information display system and method | |
| WO2013034729A1 (en) | Method for controlling energy distribution processes in a vehicle | |
| CN104184795A (en) | Safe driving method and system based on mobile terminal | |
| CN201947305U (en) | Disposal site monitor device for waste soil truck | |
| CN104851280A (en) | Vehicle driving control method, device, system and related equipment | |
| DE102015200402A1 (en) | A system and method for controlling battery performance based on predicted battery energy usage | |
| US10311170B2 (en) | System for providing infrastructure impacts on an urban area | |
| CN102963353A (en) | Hybrid power system energy management method based on neural network | |
| CN114139846A (en) | Metro carbon accounting and carbon neutralization evaluation system and evaluation method | |
| WO2021213889A1 (en) | Method for low-noise charging of motor vehicles, and motor vehicle | |
| Hao et al. | Deeply integrated vehicle dynamic and powertrain operation for efficient plug-in hybrid electric bus | |
| CN105930943A (en) | Method and device for predicting driving risk | |
| Derakhshan et al. | Optimized fuzzy controller for a power–torque distribution in a hybrid vehicle with a parallel configuration | |
| CN105752084B (en) | A kind of new-energy automobile energy optimizing method | |
| CN112927493A (en) | Scheduling calculation method for unmanned bus mode | |
| CN105946795A (en) | Vehicle key learning method and system | |
| DE102019210808A1 (en) | Forward-looking operation of a recharging infrastructure for electric vehicles | |
| AT524003B1 (en) | METHOD FOR PREDICTIVE CONTROL OF A DRIVE SYSTEM | |
| DE102015009316A1 (en) | A method for controlling a passenger compartment air conditioning of a hybrid vehicle, in particular a hybrid utility vehicle |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190212 |
|
| RJ01 | Rejection of invention patent application after publication |