CN104228471A - Tread pattern pitch design method and device - Google Patents
Tread pattern pitch design method and device Download PDFInfo
- Publication number
- CN104228471A CN104228471A CN201410446988.4A CN201410446988A CN104228471A CN 104228471 A CN104228471 A CN 104228471A CN 201410446988 A CN201410446988 A CN 201410446988A CN 104228471 A CN104228471 A CN 104228471A
- Authority
- CN
- China
- Prior art keywords
- pitch
- joint slope
- slope mode
- length
- pattern
- 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.)
- Granted
Links
Abstract
The invention discloses a tread pattern pitch design method which comprises the following steps: inputting tire perimeter and pattern pitch information; calculating the length and number of each pitch based on an average energy distribution principle according to the input tire perimeter and pattern pitch information; generating a preliminary pitch arrangement mode according to the calculated length and number of each pitch; and evaluating the preliminary pitch arrangement mode based on the average energy distribution principle, and generating a final pitch arrangement mode by changing the pitch arrangement through an evolutionary algorithm. According to the method in the embodiment of the invention, the length and number of each pitch are calculated based on the average energy distribution principle according to the tire perimeter and pattern pitch information so as to generate the preliminary pitch arrangement mode, the preliminary pitch arrangement mode is evaluated, the final pitch arrangement mode is generated by changing the pitch arrangement through the evolutionary algorithm, the cost is low, the efficiency is high, and the tread pattern pitch can be scientifically designed. The invention also discloses a device for designing the tread pattern pitch.
Description
Technical field
The present invention relates to technical field of vehicle, particularly a kind of tire tread pitch design method and device.
Background technology
Common tire tread design is all have the engineer of Pattern Design experience for many years to carry out, and goes out the good tire tread of noiseproof feature, thus reduce the noise of tire according to the Experience Design of himself.But before pattern design, the most important thing is tire tread pitch parameter designing and joint slope design, common method of designing is all dependence experience, and the foundation of science, does not cause wanting further raising, very difficult.
In correlation technique, such as pattern pitch arrangement design, by meeting the constant principle of tire circumference, the initial population of stochastic generation some, then carries out degree of adaptability calculating to each joint slope mode, if meet convergent requirement, then and Output rusults; If do not met the demands, then proceed crossover and mutation, the operations such as inverted order, then recalculate degree of adaptability, then stop until the algebraically meeting convergence requirement or iteration reaches maxim.
But, when the convergence of population does not meet the demands, in the process of carrying out interlace operation, the quantity that pitch often planted by tire probably can change, when pitch length remains unchanged, the girth of tire can change, and in the decorative pattern development process of reality, the pitch length of tire, the quantity of often kind of pitch, the total quantity of tire circumference and pattern pitch is all constant, and what uniquely may change is the spread pattern of pattern pitch.Why there will be so many conditions to limit the change of pitch parameter, coming from tire is a complicated structure, needs to consider abrasion, draining in the process of design, wetland holding power, noise, rolling resistance, road-holding property, the various aspects of performance such as traveling comfort consider, obtain the balance of performance, instead of simple only pay close attention to noiseproof feature, only optimize joint slope and the pitch parameter of so-called " noiseproof feature is best ".
Summary of the invention
The present invention is intended to solve one of technical matters in above-mentioned correlation technique at least to a certain extent.
For this reason, one object of the present invention is the method for designing proposing the tire tread pitch that a kind of efficiency is high, cost is low.
Another object of the present invention is the design apparatus proposing a kind of tire tread pitch.
For achieving the above object, one aspect of the present invention embodiment proposes a kind of method of designing of tire tread pitch, comprise the following steps: input tire circumference and pattern pitch information, wherein, described pattern pitch information comprises: the ratio of the kind of resultant pitch quantity, pitch, minimum pitch length and maximum pitch length; According to tire circumference and the pattern pitch information of input, be evenly distributed based on energy length and the quantity that principle calculates often kind of pitch; Preliminary joint slope mode is generated according to the length of the often kind of pitch calculated and quantity; And be evenly distributed principle based on described energy described preliminary joint slope mode is assessed, generate final joint slope mode to change joint slope by evolution algorithmic.
According to the method for designing of the tire tread pitch that the embodiment of the present invention proposes, by according to input tire circumference and pattern pitch information, length and the quantity that principle calculates often kind of pitch is evenly distributed based on energy, and generate preliminary joint slope mode, and preliminary joint slope mode is assessed, final joint slope mode is generated to change joint slope by evolution algorithmic, cost is low, efficiency is high, solve the defect that dependence experience in correlation technique carries out designing, can the design that tire tread pitch be carried out of science.
In addition, the method for designing of tire tread pitch according to the above embodiment of the present invention can also have following additional technical characteristic:
Further, in one embodiment of the invention, post-processing is carried out to the quantity of often kind of pitch, to obtain the quantity of often kind of pitch of integer.
Further, in one embodiment of the invention, describedly based on described energy average principle, described preliminary joint slope mode to be assessed, generate final joint slope mode to change joint slope by evolution algorithmic, specifically comprise: obtain pitch noise spectrogram according to described preliminary joint slope mode; The performance figure of described preliminary joint slope mode are calculated according to described pitch noise spectrogram; If described performance figure reach pre-set level, then stop assessing and exporting described final joint slope mode, otherwise exchange the pitch of diverse location, different pitch kind in described preliminary joint slope mode, and continue assessment.
In addition, in one embodiment of the invention, said method also comprises: if assessment number of times reaches preset times, then stop assessment.
The present invention on the other hand embodiment proposes a kind of design apparatus of tire tread pitch, it is characterized in that, comprise: load module, for inputting tire circumference and pattern pitch information, wherein, described pattern pitch information comprises: the ratio of the kind of resultant pitch quantity, pitch, minimum pitch length and maximum pitch length; Computing module, for according to the tire circumference inputted and pattern pitch information, is evenly distributed based on energy length and the quantity that principle calculates often kind of pitch; Generation module, for generating preliminary joint slope mode according to the length of often kind of pitch calculated and quantity; And evaluation module, for being evenly distributed principle based on described energy, described preliminary joint slope mode is assessed, generate final joint slope mode to change joint slope by evolution algorithmic.
According to the design apparatus of the tire tread pitch that the embodiment of the present invention proposes, by according to input tire circumference and pattern pitch information, length and the quantity that principle calculates often kind of pitch is evenly distributed based on energy, and generate preliminary joint slope mode, and preliminary joint slope mode is assessed, final joint slope mode is generated to change joint slope by evolution algorithmic, cost is low, efficiency is high, solve the defect that dependence experience in correlation technique carries out designing, can the design that tire tread pitch be carried out of science.
In addition, the design apparatus of tire tread pitch according to the above embodiment of the present invention can also have following additional technical characteristic:
Further, in one embodiment of the invention, said apparatus also comprises: processing module, for carrying out post-processing to the quantity of often kind of pitch, to obtain the quantity of often kind of pitch of integer.
Further, in one embodiment of the invention, said apparatus also comprises: described evaluation module comprises: acquiring unit, for obtaining pitch noise spectrogram according to described preliminary joint slope mode; Calculating unit, for calculating the performance figure of described preliminary joint slope mode according to described pitch noise spectrogram; And output unit, if described performance figure reach pre-set level, for stopping assessing and exporting described final joint slope mode, otherwise for exchanging the pitch of diverse location, different pitch kind in described preliminary joint slope mode, and continue assessment.
In addition, in one embodiment of the invention, described output unit also for: if assessment number of times reach preset times, then stop assessment.
The aspect that the present invention adds and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present invention and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 is the diagram of circuit of the method for designing of tire tread pitch according to an embodiment of the invention;
Fig. 2 is the schematic diagram of random pitch arrangement mode according to an embodiment of the invention;
Fig. 3 is tire pitch noise spectrum diagram according to an embodiment of the invention;
Fig. 4 is the schematic diagram exchanging a pitch according to an embodiment of the invention in joint slope;
Fig. 5 is the schematic diagram of optimum according to an embodiment of the invention joint slope mode;
Fig. 6 is the structural representation of the design apparatus of tire tread pitch according to an embodiment of the invention;
Fig. 7 is the structural representation of the design apparatus of tire tread pitch according to the present invention's specific embodiment; And
Fig. 8 is the structural representation of evaluation module according to an embodiment of the invention.
Detailed description of the invention
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise one or more these features.In describing the invention, the implication of " multiple " is two or more, unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or D score can comprise the first and second features and directly contact, also can comprise the first and second features and not be directly contact but by the other characterisation contact between them.And, fisrt feature second feature " on ", " top " and " above " comprise fisrt feature directly over second feature and oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " comprise fisrt feature directly over second feature and oblique upper, or only represent that fisrt feature level height is less than second feature.
Describe method of designing and the device of the tire tread pitch proposed according to the embodiment of the present invention with reference to the accompanying drawings, describe the method for designing of the tire tread pitch proposed according to the embodiment of the present invention first with reference to the accompanying drawings.With reference to shown in Fig. 1, the method comprises the following steps:
S101, input tire circumference and pattern pitch information, wherein, pattern pitch information comprises: the ratio of the kind of resultant pitch quantity, pitch, minimum pitch length and maximum pitch length.
In one embodiment of the invention, the embodiment of the present invention is first in the process of designing tyre pitch, consider the abrasion of tire, on the basis of the performances such as road-holding property, provide the pattern pitch ratio of recommendation, again in conjunction with the judgement of Pattern Design engineer, determine final pattern pitch ratio, secondly in the process of design pitch parameter, according to the principle of sound of tire tread pitch noise, more wide better based on energy distribution, the principle of energy dispersive peak value, carry out the computing of solving equations, calculate the parameter of pitch, as pitch length, quantity etc., finally in the process of joint slope optimization, fully take into account the balance of the various performance of tire, do not change the pitch length of input, the quantity of often kind of pitch, pitch sum, pitch ratio, and under the condition of tire circumference, namely the method for the different pitch kind of joint slope inner exchanging diverse location is only carried out, the best pattern pitch arrangement mode of noiseproof feature is found with evolution algorithmic, below the design of tire tread pitch is described in detail.
Particularly, in one embodiment of the invention, first carry out information input, namely input tire circumference, resultant pitch quantity, the ratio of minimum pitch length and maximum pitch length and pitch kind.
S102, according to tire circumference and the pattern pitch information of input, is evenly distributed based on energy length and the quantity that principle calculates often kind of pitch.
Further, in one embodiment of the invention, next calculates, namely be evenly distributed based on energy according to the information of input, and the more wide better principle of distribution, by namely carrying out the computing of set of equations in program Interior Solutions set of equations, then can calculate length and the quantity of pattern pitch.The girth of a such as tire is 1800 millimeters, total pitch quantity is 71, the ratio of minimum pitch length and maximum pitch length is 0.71, pitch kind is 4 kinds, principle is evenly distributed based on energy, the pitch length that can calculate decorative pattern is respectively from small to large: 21.7323 millimeters, 24.0579 millimeters, 26.9409 millimeters and 30.6089 millimeters, then the pitch quantity of above-mentioned four kinds of length is respectively 21,19,17,14.
Further, in one embodiment of the invention, according to tire circumference and the pattern pitch information of input, be evenly distributed based on energy length and the quantity that principle calculates often kind of pitch, comprise further: post-processing is carried out to the quantity of often kind of pitch, to obtain the quantity of often kind of pitch of integer.
In an embodiment of the present invention, the pitch number calculated and quantity, it may not be integer, some meeting is with decimal, and the tire pitch quantity of reality can not be decimal, therefore needs to carry out post-processing to the pitch quantity with decimal calculated, such as or manual correction inner in program is to integer, recalculate, make the pitch quantity calculated be integer, meet actual requirement.
S103, generates preliminary joint slope mode according to the length of the often kind of pitch calculated and quantity.
Further, in one embodiment of the invention, the optimization of joint slope is finally carried out.Particularly, first, obtain tire circumference, pitch quantity, the kind of pitch, the quantity of often kind of pitch and length, prepare for optimizing the arrangement of.Secondly, with reference to shown in Fig. 2, generate random joint slope as shown in the figure and preliminary joint slope mode according to the quantity of pitch sum and often kind of pitch.
S104, is evenly distributed principle based on energy and assesses preliminary joint slope mode, generates final joint slope mode to change joint slope by evolution algorithmic.
Further, in one embodiment of the invention, based on energy average principle, preliminary joint slope mode is assessed, generate final joint slope mode to change joint slope by evolution algorithmic, specifically comprise: obtain pitch noise spectrogram according to preliminary joint slope mode; The performance figure of preliminary joint slope mode are calculated according to pitch noise spectrogram; If performance figure reach pre-set level, then stop assessing and exporting final joint slope mode, otherwise exchange the pitch of diverse location in preliminary joint slope mode, different pitch kind, and continue assessment.
Particularly, in one embodiment of the invention, for preliminary joint slope, based on energy average principle, its performance is assessed, namely generates corresponding pitch noise spectrogram according to joint slope mode, calculated the performance figure of joint slope by pitch noise spectrogram.It should be noted that, joint slope mode is distribution more wide better in frequency domain in the drawings, and peak value is more low better.
Wherein, in one embodiment of the invention, with reference to shown in Fig. 3, Fig. 3 is the result schematic diagram that namely tire pitch noise spectrum diagram is assessed, Fig. 3 also can be called harmonic spectrum, transverse axis represents harmonic order number, the longitudinal axis represents the amplitude size of each order harmonics, during corresponding to tire rolling, and the watt level of the noise that pitch sends, and with all harmonic waves, maximum amplitude is relevant, and wherein, amplitude is larger, larger therefore maximum from the figure amplitude size of pitch noise of tire, can judge the pitch noise performance quality of tire.Secondly, high amplitude peaks quantity is more, and the pitch noise performance of tire is worse.For the foregoing reasons, the embodiment of the present invention needs to find peak value low, and the joint slope mode that high number of peaks is few, because joint slope mode is similar to astronomical figure, artificial method can not realize, so the embodiment of the present invention changes joint slope by evolution algorithmic, to generate final joint slope mode.
Further, in one embodiment of the invention, assessed the performance of this kind of pitch, if reach expected value and pre-set level requirement, then stopped calculating namely stopping assessment, otherwise carry out the operation exchanging pitch.Particularly, with reference to shown in Fig. 4, diverse location in this joint slope of random exchange, the pitch of different pitch kind is to produce new joint slope, and newly-generated joint slope is assessed, after performance figure reach pre-set level, stop exchanging, namely Output rusults exports optimum distance arrangement mode such as shown in Fig. 5, and draws to result.
Further, in one embodiment of the invention, said method also comprises: also comprise: if assessment number of times reaches preset times, then stop assessment.Namely say, when the number of times calculated reaches setting value, but when also not having the performance figure of joint slope mode can reach pre-set level, also stop calculating, prompting is found less than result.
The principle that the embodiment of the present invention is evenly distributed based on energy, by separating a series of set of equations, calculating tire tread pitch design parameter, and being calculated in a large number by evolution algorithmic, obtain the optimal alignment of tire tread pitch, thus can the design that tire tread pitch be carried out of science.Particularly; the design plan that the design of Conventional wisdom is not necessarily optimum; usually also need by a large amount of experiment tests; the work such as amendment; and the pattern pitch parameter of embodiment of the present invention design is through the calculating of science, deal with problems, so the method for designing of the embodiment of the present invention does not need a large amount of experiment tests in the source produced from noise; the work such as amendment, the expense that the decorative pattern greatly the saved exploitation cycle is in earlier stage a large amount of with saving.In addition, in correlation technique, joint slope is also determine by the method for experience usually, but pitch quantity is more, the mode of composition joint slope is magnanimity, and will select the good joint slope of noiseproof feature from so many joint slope, be by virtue of experience only impossible, so the embodiment of the present invention develops be optimized calculating with evolution algorithmic, the arrangement searching out noiseproof feature the best comes, and greatly saves time and expense, improves design efficiency.
According to the method for designing of the tire tread pitch that the embodiment of the present invention proposes, by according to input tire circumference and pattern pitch information, length and the quantity that principle calculates often kind of pitch is evenly distributed based on energy, and generate preliminary joint slope mode, and the performance figure of preliminary joint slope mode are calculated according to pitch noise spectrogram, to assess joint slope mode, thus generate final joint slope mode by evolution algorithmic change joint slope, cost is low, efficiency is high, solve the defect that dependence experience in correlation technique carries out designing, can the design carrying out tire tread pitch of science.
Next describes the design apparatus of the tire tread pitch proposed according to the embodiment of the present invention with reference to the accompanying drawings.With reference to described in Fig. 6, this device 100 comprises: load module 10, computing module 20, generation module 30 and evaluation module 40.
Wherein, load module 10 is for inputting tire circumference and pattern pitch information, and wherein, pattern pitch information comprises: the ratio of the kind of resultant pitch quantity, pitch, minimum pitch length and maximum pitch length.Computing module 20, for according to the tire circumference inputted and pattern pitch information, is evenly distributed based on energy length and the quantity that principle calculates often kind of pitch.The length of often kind of pitch that generation module 30 calculates for basis and quantity generate preliminary joint slope mode.Evaluation module 40 is assessed preliminary joint slope mode for being evenly distributed principle based on energy, generates final joint slope mode to change joint slope by evolution algorithmic.
Particularly, in one embodiment of the invention, the embodiment of the present invention is first in the process of designing tyre pitch, consider the abrasion of tire, on the basis of the performances such as road-holding property, provide the pattern pitch ratio of recommendation, again in conjunction with the judgement of Pattern Design engineer, determine final pattern pitch ratio, secondly in the process of design pitch parameter, according to the principle of sound of tire tread pitch noise, more wide better based on energy distribution, the principle of energy dispersive peak value, carry out the computing of solving equations, calculate the parameter of pitch, as pitch length, quantity etc., finally in the process of joint slope optimization, fully take into account the balance of the various performance of tire, do not change the pitch length of input, the quantity of often kind of pitch, pitch sum, pitch ratio, and under the condition of tire circumference, namely the method for the different pitch kind of joint slope inner exchanging diverse location is only carried out, the best pattern pitch arrangement mode of noiseproof feature is found with evolution algorithmic, below the design of tire tread pitch is described in detail.
Wherein, in one embodiment of the invention, first carry out information input, namely input tire circumference, resultant pitch quantity, the ratio of minimum pitch length and maximum pitch length and pitch kind.
Further, in one embodiment of the invention, next calculates, namely be evenly distributed based on energy according to the information of input, and the more wide better principle of distribution, by namely carrying out the computing of set of equations in program Interior Solutions set of equations, then can calculate length and the quantity of pattern pitch.The girth of a such as tire is 1800 millimeters, total pitch quantity is 71, the ratio of minimum pitch length and maximum pitch length is 0.71, pitch kind is 4 kinds, principle is evenly distributed based on energy, the pitch length that can calculate decorative pattern is respectively from small to large: 21.7323 millimeters, 24.0579 millimeters, 26.9409 millimeters and 30.6089 millimeters, then the pitch quantity of above-mentioned four kinds of length is respectively 21,19,17,14.
Further, in one embodiment of the invention, with reference to shown in Fig. 7, said apparatus 100 also comprises: processing module 50.Wherein, processing module 50 for carrying out post-processing to the quantity of often kind of pitch, to obtain the quantity of often kind of pitch of integer.
In an embodiment of the present invention, the pitch number calculated and quantity, it may not be integer, some meeting is with decimal, and the tire pitch quantity of reality can not be decimal, therefore needs to carry out post-processing to the pitch quantity with decimal calculated, such as or manual correction inner in program is to integer, recalculate, make the pitch quantity calculated be integer, meet actual requirement.
Further, in one embodiment of the invention, the optimization of joint slope is finally carried out.Particularly, first, obtain tire circumference, pitch quantity, the kind of pitch, the quantity of often kind of pitch and length, prepare for optimizing the arrangement of.Secondly, with reference to shown in Fig. 2, generate random joint slope as shown in the figure and preliminary joint slope mode according to the quantity of pitch sum and often kind of pitch.
Further, in one embodiment of the invention, with reference to shown in Fig. 8, evaluation module 40 comprises: acquiring unit 41, calculating unit 42 and output unit 43.
Wherein, acquiring unit 41 is for obtaining pitch noise spectrogram according to preliminary joint slope mode.Calculating unit 42 is for calculating the performance figure of preliminary joint slope mode according to pitch noise spectrogram.If performance figure reach pre-set level, then output unit 43 is for stopping assessing and exporting final joint slope mode, otherwise output unit 43 is for exchanging the pitch of diverse location in preliminary joint slope mode, different pitch kind, and continues assessment.
Particularly, in one embodiment of the invention, for preliminary joint slope, based on energy average principle, its performance is assessed, namely generates corresponding pitch noise spectrogram according to joint slope mode, calculated the performance figure of joint slope by pitch noise spectrogram.It should be noted that, joint slope mode is distribution more wide better in frequency domain in the drawings, and peak value is more low better.
Wherein, in one embodiment of the invention, with reference to shown in Fig. 3, Fig. 3 is the result schematic diagram that namely tire pitch noise spectrum diagram is assessed, Fig. 3 also can be called harmonic spectrum, transverse axis represents harmonic order number, the longitudinal axis represents the amplitude size of each order harmonics, during corresponding to tire rolling, and the watt level of the noise that pitch sends, and with all harmonic waves, maximum amplitude is relevant, and wherein, amplitude is larger, larger therefore maximum from the figure amplitude size of pitch noise of tire, can judge the pitch noise performance quality of tire.Secondly, high amplitude peaks quantity is more, and the pitch noise performance of tire is worse.For the foregoing reasons, the embodiment of the present invention needs to find peak value low, and the joint slope mode that high number of peaks is few, because joint slope mode is similar to astronomical figure, artificial method can not realize, so the embodiment of the present invention changes joint slope by evolution algorithmic, to generate final joint slope mode.
Further, in one embodiment of the invention, assessed the performance of this kind of pitch, if reach expected value and pre-set level requirement, then stopped calculating namely stopping assessment, otherwise carry out the operation exchanging pitch.Particularly, with reference to shown in Fig. 4, diverse location in this joint slope of random exchange, the pitch of different pitch kind is to produce new joint slope, and newly-generated joint slope is assessed, after performance figure reach pre-set level, stop exchanging, namely Output rusults exports optimum distance arrangement mode such as shown in Fig. 5, and draws to result.
Further, in one embodiment of the invention, output unit 43 also for: if assessment number of times reach preset times, then stop assessment.Namely say, when the number of times calculated reaches setting value, but when also not having the performance figure of joint slope mode can reach pre-set level, also stop calculating, prompting is found less than result.
The principle that the embodiment of the present invention is evenly distributed based on energy, by separating a series of set of equations, calculating tire tread pitch design parameter, and being calculated in a large number by evolution algorithmic, obtain the optimal alignment of tire tread pitch, thus can the design that tire tread pitch be carried out of science.Particularly; the design plan that the design of Conventional wisdom is not necessarily optimum; usually also need by a large amount of experiment tests; the work such as amendment; and the pattern pitch parameter of embodiment of the present invention design is through the calculating of science, deal with problems, so the method for designing of the embodiment of the present invention does not need a large amount of experiment tests in the source produced from noise; the work such as amendment, the expense that the decorative pattern greatly the saved exploitation cycle is in earlier stage a large amount of with saving.In addition, in correlation technique, joint slope is also determine by the method for experience usually, but pitch quantity is more, the mode of composition joint slope is magnanimity, and will select the good joint slope of noiseproof feature from so many joint slope, be by virtue of experience only impossible, so the embodiment of the present invention develops be optimized calculating with evolution algorithmic, the arrangement searching out noiseproof feature the best comes, and greatly saves time and expense, improves design efficiency.
According to the design apparatus of the tire tread pitch that the embodiment of the present invention proposes, by according to input tire circumference and pattern pitch information, length and the quantity that principle calculates often kind of pitch is evenly distributed based on energy, and generate preliminary joint slope mode, and the performance figure of preliminary joint slope mode are calculated according to pitch noise spectrogram, to assess joint slope mode, thus generate final joint slope mode by evolution algorithmic change joint slope, cost is low, efficiency is high, solve the defect that dependence experience in correlation technique carries out designing, can the design carrying out tire tread pitch of science.
Describe and can be understood in diagram of circuit or in this any process otherwise described or method, represent and comprise one or more for realizing the module of the code of the executable instruction of the step of specific logical function or process, fragment or part, and the scope of the preferred embodiment of the present invention comprises other realization, wherein can not according to order that is shown or that discuss, comprise according to involved function by the mode while of basic or by contrary order, carry out n-back test, this should understand by embodiments of the invention person of ordinary skill in the field.
In flow charts represent or in this logic otherwise described and/or step, such as, the sequencing list of the executable instruction for realizing logic function can be considered to, may be embodied in any computer-readable medium, for instruction execution system, device or equipment (as computer based system, comprise the system of treater or other can from instruction execution system, device or equipment fetch instruction and perform the system of instruction) use, or to use in conjunction with these instruction execution systems, device or equipment.With regard to this specification sheets, " computer-readable medium " can be anyly can to comprise, store, communicate, propagate or transmission procedure for instruction execution system, device or equipment or the device that uses in conjunction with these instruction execution systems, device or equipment.The example more specifically (non-exhaustive list) of computer-readable medium comprises following: the electrical connection section (electronics package) with one or more wiring, portable computer diskette box (magnetic device), random access memory (RAM), read-only memory (ROM) (ROM), erasablely edit read-only memory (ROM) (EPROM or flash memory), fiber device, and portable optic disk read-only memory (ROM) (CDROM).In addition, computer-readable medium can be even paper or other suitable media that can print described program thereon, because can such as by carrying out optical scanning to paper or other media, then carry out editing, decipher or carry out process with other suitable methods if desired and electronically obtain described program, be then stored in computer storage.
Should be appreciated that each several part of the present invention can realize with hardware, software, firmware or their combination.In the above-described embodiment, multiple step or method can with to store in memory and the software performed by suitable instruction execution system or firmware realize.Such as, if realized with hardware, the same in another embodiment, can realize by any one in following technology well known in the art or their combination: the discrete logic with the logic gates for realizing logic function to data-signal, there is the special IC of suitable combinatory logic gate circuit, programmable gate array (PGA), field programmable gate array (FPGA) etc.
Those skilled in the art are appreciated that realizing all or part of step that above-described embodiment method carries is that the hardware that can carry out instruction relevant by program completes, described program can be stored in a kind of computer-readable recording medium, this program perform time, step comprising embodiment of the method one or a combination set of.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing module, also can be that the independent physics of unit exists, also can be integrated in a module by two or more unit.Above-mentioned integrated module both can adopt the form of hardware to realize, and the form of software function module also can be adopted to realize.If described integrated module using the form of software function module realize and as independently production marketing or use time, also can be stored in a computer read/write memory medium.
The above-mentioned storage medium mentioned can be read-only memory (ROM), disk or CD etc.
In the description of this specification sheets, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and describe embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, those of ordinary skill in the art can change above-described embodiment within the scope of the invention when not departing from principle of the present invention and aim, revising, replacing and modification.
Claims (8)
1. a method of designing for tire tread pitch, is characterized in that, comprises the following steps:
Input tire circumference and pattern pitch information, wherein, described pattern pitch information comprises: the ratio of the kind of resultant pitch quantity, pitch, minimum pitch length and maximum pitch length;
According to tire circumference and the pattern pitch information of input, be evenly distributed based on energy length and the quantity that principle calculates often kind of pitch;
Preliminary joint slope mode is generated according to the length of the often kind of pitch calculated and quantity; And
Be evenly distributed principle based on described energy to assess described preliminary joint slope mode, generate final joint slope mode to change joint slope by evolution algorithmic.
2. the method for claim 1, is characterized in that, the described tire circumference according to input and pattern pitch information, is evenly distributed length and the quantity that principle calculates often kind of pitch, comprises further based on energy:
Post-processing is carried out to the quantity of often kind of pitch, to obtain the quantity of often kind of pitch of integer.
3. the method for claim 1, is characterized in that, describedly assesses described preliminary joint slope mode based on described energy average principle, generates final joint slope mode, specifically comprise to change joint slope by evolution algorithmic:
Pitch noise spectrogram is obtained according to described preliminary joint slope mode;
The performance figure of described preliminary joint slope mode are calculated according to described pitch noise spectrogram;
If described performance figure reach pre-set level, then stop assessing and exporting described final joint slope mode, otherwise exchange the pitch of diverse location, different pitch kind in described preliminary joint slope mode, and continue assessment.
4. method as claimed in claim 3, is characterized in that, also comprise: if assessment number of times reaches preset times, then stop assessment.
5. a design apparatus for tire tread pitch, is characterized in that, comprising:
Load module, for inputting tire circumference and pattern pitch information, wherein, described pattern pitch information comprises: the ratio of the kind of resultant pitch quantity, pitch, minimum pitch length and maximum pitch length;
Computing module, for according to the tire circumference inputted and pattern pitch information, is evenly distributed based on energy length and the quantity that principle calculates often kind of pitch;
Generation module, for generating preliminary joint slope mode according to the length of often kind of pitch calculated and quantity; And
Evaluation module, assesses described preliminary joint slope mode for being evenly distributed principle based on described energy, generates final joint slope mode to change joint slope by evolution algorithmic.
6. device as claimed in claim 5, is characterized in that, also comprise: processing module, for carrying out post-processing to the quantity of often kind of pitch, to obtain the quantity of often kind of pitch of integer.
7. device as claimed in claim 5, it is characterized in that, described evaluation module comprises:
Acquiring unit, for obtaining pitch noise spectrogram according to described preliminary joint slope mode;
Calculating unit, for calculating the performance figure of described preliminary joint slope mode according to described pitch noise spectrogram; And
Output unit, if described performance figure reach pre-set level, for stopping assessing and exporting described final joint slope mode, otherwise for exchanging the pitch of diverse location, different pitch kind in described preliminary joint slope mode, and continues assessment.
8. device as claimed in claim 7, is characterized in that, described output unit also for: if assessment number of times reaches preset times, then stop assessment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410446988.4A CN104228471B (en) | 2014-09-03 | 2014-09-03 | Tyre tread pitch design method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410446988.4A CN104228471B (en) | 2014-09-03 | 2014-09-03 | Tyre tread pitch design method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104228471A true CN104228471A (en) | 2014-12-24 |
| CN104228471B CN104228471B (en) | 2016-12-07 |
Family
ID=52217731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410446988.4A Active CN104228471B (en) | 2014-09-03 | 2014-09-03 | Tyre tread pitch design method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104228471B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109871632A (en) * | 2019-03-01 | 2019-06-11 | 万力轮胎股份有限公司 | A kind of method, apparatus that tread pattern pitch automatically generates, system and equipment |
| WO2021128227A1 (en) * | 2019-12-26 | 2021-07-01 | 山东玲珑轮胎股份有限公司 | Method for numerical evaluation and optimization of tire wear performance |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0629519A1 (en) * | 1993-06-10 | 1994-12-21 | Bridgestone Corporation | Method of determining a pitch arrangement of a tire |
| US6230112B1 (en) * | 1996-12-27 | 2001-05-08 | Bridgestone Corporation | Pneumatic tire designing method |
| US20070175565A1 (en) * | 2006-01-27 | 2007-08-02 | Brown Jack E Jr | Continuous variable pitching methods |
| CN102159409A (en) * | 2008-09-18 | 2011-08-17 | 株式会社普利司通 | Method of designing tire and tire |
-
2014
- 2014-09-03 CN CN201410446988.4A patent/CN104228471B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0629519A1 (en) * | 1993-06-10 | 1994-12-21 | Bridgestone Corporation | Method of determining a pitch arrangement of a tire |
| US6230112B1 (en) * | 1996-12-27 | 2001-05-08 | Bridgestone Corporation | Pneumatic tire designing method |
| US20070175565A1 (en) * | 2006-01-27 | 2007-08-02 | Brown Jack E Jr | Continuous variable pitching methods |
| CN102159409A (en) * | 2008-09-18 | 2011-08-17 | 株式会社普利司通 | Method of designing tire and tire |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109871632A (en) * | 2019-03-01 | 2019-06-11 | 万力轮胎股份有限公司 | A kind of method, apparatus that tread pattern pitch automatically generates, system and equipment |
| CN109871632B (en) * | 2019-03-01 | 2023-06-16 | 万力轮胎股份有限公司 | Method, device, system and equipment for automatically generating tread pattern pitch |
| WO2021128227A1 (en) * | 2019-12-26 | 2021-07-01 | 山东玲珑轮胎股份有限公司 | Method for numerical evaluation and optimization of tire wear performance |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104228471B (en) | 2016-12-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Koor et al. | Optimization of pump efficiencies with different pumps characteristics working in parallel mode | |
| CN109977460A (en) | A kind of multi-objective optimization design of power method based on vehicle body section parameter | |
| Saldarriaga et al. | Determination of optimal location and settings of pressure reducing valves in water distribution networks for minimizing water losses | |
| CN102855359A (en) | Optimized design method for variable-thickness rims of automobile wheels | |
| CN105868428A (en) | Springback compensation method of stamped part | |
| CN104228471A (en) | Tread pattern pitch design method and device | |
| KR102574244B1 (en) | A method and apparatus for generating future demand forecast data based on attention mechanism | |
| Germani et al. | A method for the estimation of the economic and ecological sustainability of production lines | |
| De Paola et al. | An application of the Harmony-Search Multi-Objective (HSMO) optimization algorithm for the solution of pump scheduling problem | |
| KR102037219B1 (en) | Design method of single channel pump that can change output according to the impeller redesign | |
| Wang et al. | Utilizing variant differentiation to mitigate manufacturing complexity in mixed-model assembly systems | |
| Kawauchi et al. | A new approach to production regularity assessment in the oil and chemical industries | |
| CN109213098A (en) | Adjust method, apparatus, electronic equipment and the computer-readable medium of operating parameter | |
| CN115391913A (en) | Simulation method and device based on meshless finite element, electronic equipment and medium | |
| CN105739476A (en) | Product control method and product control device with configurable workshop processes and technology | |
| CN102750454B (en) | A kind of hydrogen consumption predicted value acquisition methods, Apparatus and system | |
| Eck et al. | A simulation-optimization approach for reducing background leakage in water systems | |
| Latifi et al. | Upgrading the reliability of water distribution networks through optimal use of pressure-reducing valves | |
| CN112464525A (en) | Method for determining initiation and expansion of wheel rail crack | |
| CN106599448A (en) | Dynamic reliability-based gear system tolerance optimization calculation method | |
| US20040199444A1 (en) | Method of characterizing financial benefits based upon input operational parameters having uncertainties | |
| CN105643944A (en) | 3D Printer stability control method and control system | |
| CN101086770A (en) | Accumulation prediction method of spare part requirement | |
| JP4528962B2 (en) | Design support method | |
| JP6725380B2 (en) | Optimization calculation device, optimization calculation method, and program |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |