CN102974950B - Grouping method for swirler parts and group matching method for swirler assemblies - Google Patents
Grouping method for swirler parts and group matching method for swirler assemblies Download PDFInfo
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Abstract
The invention provides a grouping method for swirler parts and a group matching method for swirler assemblies. The grouping method comprises the following steps: step S1: measuring air flow values of a plurality of sample parts; step S2: ranking the air flow values of the sample parts in a gradually increasing order; step S3: determining the value interval of the air flow values of the sample parts; step S4: determining the number of groups; step S5: determining the increase value of the interval; step S6: dividing the value interval into multiple grouping intervals for dividing the groups according to the increase value of the interval; step S7: determining the group of each to-be-grouped part according to the grouping intervals; and step S8: respectively making the group of each to-be-grouped part on the to-be-grouped part. As the grouping intervals are determined, the groups of the to-be-grouped parts can be determined according to the grouping intervals within which the air flow values of the to-be-grouped parts are, measurement and calculation are not required, the labor intensity of workers is lowered, and the work efficiency is improved.
Description
Technical field
The present invention relates to swirler part combo field, more specifically, relate to a kind of group technology of swirler part and the method for group matching of swirler assembly.
Background technology
Swirler is one of strength member of engine combustion indoor.Swirler provides the air of suitable capacity for firing chamber.Swirler is a strength member on engine.The air-flow produced by swirler is called backflow phenomenon, and the time that the backflow of air-flow makes oil gas stop in firing chamber increases, and ensure that oil gas can mixed combustion better, thus the serviceability of swirler directly affects the combination property of firing chamber.Swirler is made up of two kinds of parts: multiple first part (air cover) and multiple second part (radial-swirler) are welded to form a set of swirler assembly correspondingly.When needing to test through air mass flow after multiple first part and multiple second part combination.In order to ensure that combustor exit temperature is more even, the requirement (deviate scope is ± 1%) of the equal distribution consistency degree of demand fulfillment air mass flow of multiple first part and multiple second part itself, and the requirement (deviate scope is ± 1%) of assembly after multiple first part and the multiple second part combination also distribution consistency degree of demand fulfillment air mass flow.
The group technology of swirler part is not had in prior art.
In prior art, the method for group matching of swirler assembly is:
The first step, first staff gets multiple first part from warehouse, and carries out air mass flow test to multiple first part, obtains the air mass flow value of each first part.Then according to the sequence from small to large of the air mass flow value of multiple first part, multiple first part is divided into many groups, and calculates the 3rd distribution consistency degree of the air mass flow of each first part according to formula (6).Then select multiple first parts of the 3rd distribution consistency degree in deviation allowed band stand-by, warehouse put back to by multiple first parts of the 3rd distribution consistency degree outside deviation allowed band.
Second step, first staff gets multiple second part from warehouse, and carries out air mass flow test to multiple second part, obtains the air mass flow value of each second part.Then according to the sequence from small to large of the air mass flow value of multiple second part, multiple second part is divided into many groups, and calculates the 3rd distribution consistency degree of the air mass flow of each second part according to formula (6).Then select multiple second parts of the 3rd distribution consistency degree in deviation allowed band stand-by, warehouse put back to by multiple second parts of the 3rd distribution consistency degree outside deviation allowed band.
Wherein: t is the 3rd distribution consistency degree of the air mass flow of each first part (or second part); K is the air mass flow value of certain first part (or second part); J is the average air flow value of multiple first part (or second part).
3rd step, is welded to form multiple pairing assembly by stand-by multiple first part and stand-by multiple second part one_to_one corresponding, and carries out air mass flow test to multiple pairing assembly, obtain the assembly air mass flow value of each pairing assembly.Then according to the sequence from small to large of the assembly air mass flow value of multiple pairing assembly, multiple pairing assembly is divided into multiple assembly to be screened, and calculates the second distribution consistency degree of the assembly air mass flow of each assembly to be screened according to formula (5).Then the assembly to be screened of the second distribution consistency degree in deviation allowed band is selected to complete a set swirler assembly.If assembly to be screened does not meet the second distribution consistency degree, need to put back to warehouse.
After choosing multiple assembly to be screened, calculate the mean value of the assembly air mass flow value of multiple assembly to be screened, and calculate the second distribution consistency degree of the assembly air mass flow of each assembly to be screened according to formula (5):
Wherein, m is the second distribution consistency degree of the assembly air mass flow of each assembly to be screened; Q is the assembly air mass flow value of some assemblies to be screened; P is the average component air mass flow value of multiple assembly to be screened.
Due to do not meet the part of distribution consistency degree and assembly all needs return stores keeping, also will through above-mentioned combo step when reusing, thus add the labour intensity of staff, reduce work efficiency, consume a large amount of time and efforts, and chaotic, part overstocks that situation is serious, part warehouse-in conflicts with batch managing to produce, thus causes the problems such as staff's difficult management to cause part to place.
Summary of the invention
The present invention aims to provide a kind of group technology of swirler part and the method for group matching of swirler assembly, the problem of intensity of workers high, inefficiency, swirler part and assembly management confusion during to solve swirler combo in prior art.
For solving the problems of the technologies described above, according to an aspect of the present invention, provide a kind of group technology of swirler part, comprising:
Step S1: the air mass flow value measuring multiple sample parts, obtains the air mass flow value of each sample parts;
Step S2; By the air mass flow value of multiple sample parts according to order sequence from small to large;
Step S3: determine that the interval of the air mass flow value of multiple sample parts is for (A, B) according to the result of sequence;
Step S4: number interval being accounted for the number percent determination group of the mean value of B and A according to B and A difference;
Step S5: the interval increment value determining the air mass flow value corresponding to adjacent two different groups;
Step S6: and according to interval increment value, interval is divided between the multiple packet zone for divide group corresponding with group;
Step S7: between the packet zone that the air mass flow value of dividing into groups part falls into, determine each group treating grouping part according to waiting;
Step S8: treat that the group of grouping part is marked at each treating on grouping part respectively by each.
Further, the number of the group of multiple sample parts is determined in step S4 according to following formula (1):
Wherein, C is the number of the group of multiple sample parts; A, B are the interval of the air mass flow value of multiple sample parts;
Interval increment value is determined according to formula (2) in step S5:
Wherein, D is interval increment value; C is the number of the group of multiple sample parts; A, B are the interval of the air mass flow value of multiple sample parts;
Be [(A+m*D), (A+ (m+1) * D)] between the packet zone in step S6, wherein, m is the integer of 0 to C-1, and C is the number of the group of multiple sample parts; D is interval increment value; A, B are the interval of the air mass flow value of multiple sample parts.
Further, also comprise between step S2 and step S3:
Step S21: according to the result of sequence, multiple sample parts is divided into many groups, calculates the average air flow value often organizing sample parts, and calculates the first distribution consistency degree of the air mass flow of each sample parts according to following formula (3):
Wherein: δ
1it is the first distribution consistency degree of the air mass flow of each sample parts; E is the air mass flow value of some sample parts; F is the average air flow value of the sample parts of this some sample parts places group;
Step S22: select the air mass flow value of the sample parts of the first distribution consistency degree in deviation allowed band to determine interval.
Further, the number of the group of multiple sample parts is determined in step S4 according to following formula (4):
Wherein, C is the number of the group of multiple sample parts, and N is the deviation allowed band of the first distribution consistency degree; A, B are the interval of the air mass flow value of multiple sample parts, and r is experience factor;
In step S5 and according to following formula (2) computation interval increment size:
Wherein, D is interval increment value, and N is the deviation allowed band of the first distribution consistency degree; C is the number of the group of multiple sample parts; A, B are the interval of the air mass flow value of multiple sample parts;
Step S6 comprises: between packet zone be
Wherein, D is interval increment value, and m is the integer of 0 to C-1, and C is the number of the group of multiple sample parts; N is the deviation allowed band of the first distribution consistency degree; A, B are the interval of the air mass flow value of multiple sample parts.
According to another aspect of the present invention, provide a kind of method for group matching of swirler assembly, comprising:
Step S10; First part of swirler and the second part are divided into groups according to above-mentioned group technology;
Step S20: choose multiple first parts in same group, chooses multiple second parts in same group, and multiple first part and multiple second part are combined pairing correspondingly becomes multiple pairing assembly; Measure the assembly air mass flow value of multiple pairing assembly; By assembly air mass flow value according to order sequence from small to large;
Step S30: according to the assembly air mass flow value after sequence, from multiple pairing assembly, assembly air mass flow is worth ascending order and chooses multiple pairing assembly as multiple assembly to be screened with the swirler assembly that completes a set.
Further, step S30 also comprises step S31:
After choosing multiple assembly to be screened, calculate the mean value of the assembly air mass flow value of multiple assembly to be screened, and calculate the second distribution consistency degree of the assembly air mass flow of each assembly to be screened according to following formula (5):
Wherein, δ
2it is the second distribution consistency degree of the assembly air mass flow of each assembly to be screened; Q is the assembly air mass flow value of some assemblies to be screened; P is the average component air mass flow value of multiple assembly to be screened;
Then the assembly to be screened of the second distribution consistency degree in deviation allowed band is selected to complete a set swirler assembly.
Further, method for group matching also comprises:
Step S40: added by the undesirable assembly to be screened of the second distribution consistency degree in multiple assembly to be screened after not electing the assembly of assembly to be screened as in multiple pairing assembly, repeats step S30, with the swirler assembly that completes a set.
According to group technology of the present invention, measure the air mass flow value of multiple sample parts, and the air mass flow value of multiple sample parts is sorted from small to large, thus determine the interval of multiple sample parts, and the number of interval according to the group determined is divided, thus between the packet zone determining interval increment value and each group, then divide into groups part according to the group determining to treat grouping part between packet zone by waiting, and then group to be marked at and eachly to treat on grouping part, thus complete the process of part grouping.Because the air mass flow value according to sample parts determines between packet zone, thus treat that the air mass flow value of grouping part only needs to fall in packet zone, just can determine the group treating grouping part, and do not need again through measurements and calculations, thus decrease the labour intensity of staff, improve work efficiency.Meanwhile, due to part is divided into groups, thus decrease the working strength of part combo, further increase work efficiency.
Accompanying drawing explanation
The accompanying drawing forming a application's part is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 diagrammatically illustrates the process flow diagram of group technology in the present invention; And
Fig. 2 diagrammatically illustrates the process flow diagram of method for group matching in the present invention.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are described in detail, but the multitude of different ways that the present invention can be defined by the claims and cover is implemented.
As first aspect of the present invention, provide a kind of group technology of swirler part.As shown in Figure 1, group technology comprises:
Step S1: the air mass flow value measuring multiple sample parts, obtains the air mass flow value of each sample parts;
Step S2; By the air mass flow value of multiple sample parts according to order sequence from small to large;
Step S3: determine that the interval of the air mass flow value of multiple sample parts is for (A, B) according to the result of sequence;
Step S4: number interval being accounted for the number percent determination group of the mean value of B and A according to B and A difference;
Step S5: the interval increment value determining the air mass flow value corresponding to adjacent two different groups;
Step S6: and according to interval increment value, interval is divided between the multiple packet zone for divide group corresponding with group;
Step S7: between the packet zone that the air mass flow value of dividing into groups part falls into, determine each group treating grouping part according to waiting;
Step S8: treat that the group of grouping part is marked at each treating on grouping part respectively by each.
According to group technology of the present invention, need to determine between packet zone according to the air mass flow value of multiple sample parts, then only need according to waiting between the packet zone that the air mass flow value of dividing into groups part falls into, determine each group treating grouping part, thus decrease and treat to each the step that grouping part calculates, thus alleviate the labour intensity of staff, improve work efficiency.Due to each part after grouping being marked with group, thus can choosing in same group according to the group of part when staff chooses part, thus improve the work efficiency of swirler combo, alleviate the labour intensity of staff.
Determining in the process between packet zone, first the air mass flow value measuring multiple sample parts is needed, then the air mass flow value of multiple sample parts is sorted from small to large, thus determine the interval of multiple sample parts, the number of interval according to the group determined then is needed to divide, determine interval increment value, thus between the packet zone determining each group.
In a preferred embodiment in the present invention, in step S4, determine the number of the group of multiple sample parts according to following formula (1):
Wherein, C is the number of the group of multiple sample parts; A, B are the interval of the air mass flow value of multiple sample parts;
Interval increment value is determined according to following formula (2) in step S5:
Wherein, D is interval increment value; C is the number of the group of multiple sample parts; A, B are the interval of the air mass flow value of multiple sample parts;
Be that [wherein, m is the integer of 0 to C-1, and C is the number of the group of multiple sample parts for (A+m*D), (A+ (m+1) * D) between the packet zone in step S6; D is interval increment value; A, B are the interval of the air mass flow value of multiple sample parts.
Wherein, formula (1) by
Obtain after s abbreviation
Determining multiple sample
After the interval of this part, determine the number of the group of multiple sample parts according to formula (1), and the number of interval by the group determined is divided, thus determine interval increment value, and then between the packet zone just can determining multiple sample parts.
Such as: interval is (4.1,4.7), A=4.1, B=4.7,
So, the number of the group of multiple sample parts is determined: C={(4.7-4.1 according to formula (1))/[(4.7+4.1)/2] } * 100={(4.7-4.1)/[(4.7+4.1)/2] } * 100=12, thus determine multiple sample parts to be divided into 12 groups.
So, calculate the interval increment value of the air mass flow value corresponding to adjacent two different groups according to formula (2): D=(B-A)/C*100=0.05, thus determine that interval increment value is 0.05,
So, determine between packet zone:
One group [4.1,4.15), two groups [4.15,4.2), three groups [4.2,4.25), four groups [4.25,4.3), five groups [4.3,4.35), six groups [4.35,4.4) seven group [4.4,4.45), eight groups [4.45,4.5), nine group [4.5,4.55), ten groups [4.55,4.6), 11 group [4.6,4.65), 12 groups [4.65,4.7].
Such as, now have an air mass flow value treating grouping part to be 4.23, then can learn according between packet zone, this treats that grouping part should be divided into the 3rd group.
In another preferred embodiment in the present invention, group technology also comprises:
Also comprise between step S2 and step S3:
Step S21: according to the result of sequence, multiple sample parts is divided into many groups, calculates the average air flow value often organizing sample parts, and calculates the first distribution consistency degree of the air mass flow of each sample parts according to following formula (3):
Wherein: δ
1it is the first distribution consistency degree of the air mass flow of each sample parts; E is the air mass flow value of some sample parts; F is the average air flow value of the sample parts of this some sample parts places group;
Step S22: select the air mass flow value of the sample parts of the first distribution consistency degree in deviation allowed band (deviate scope is ± 1%) to determine interval.
Can screen multiple sample parts according to step S21 and step S22, select the air mass flow value of the sample parts of selection first distribution consistency degree in deviation allowed band to determine interval.
Such as, 994 sample parts are screened, the air mass flow value scope (4 of 994 sample parts, 5), first by the air mass flow value order sequence from small to large of 994 sample parts according to 994 sample parts, then 994 sample parts are one group with adjacent every 14 parts to divide into groups, are divided into 14 groups.
14 air mass flow values of getting first group of part are example, calculate the first distribution consistency degree δ of the air mass flow of each sample parts according to formula (3)
1, such as: the δ of the air mass flow value of first part in the air mass flow value of first group of part
1=1.36%, then the sample parts representated by first part air mass flow value can not meet the deviation of the first distribution consistency degree, and thus this part needs to put back to warehouse.Such as: the δ of the air mass flow value of the 8th part of the air mass flow value of first group of part
1=0.96%, then the sample parts representated by air mass flow value of the 8th part can meet the deviation of the first distribution consistency degree, and thus this part needs to retain, for determining interval.As stated above, calculate the first distribution consistency degree δ 1 of 994 parts successively, and put back to warehouse according to the part judged not meeting deviation requirement, the air mass flow value of the part met the demands is preserved.Such as, after judging, there are 920 data to remain, according to the air mass flow value corresponding to 920 parts, determine interval.
Such as interval is (4.1,4.7) A=4.1, B=4.7.
Preferably, the number of the group of multiple sample parts is determined in step S4 according to following formula (4):
Wherein, C is the number of the group of multiple sample parts, and N is the deviation allowed band of the first distribution consistency degree; A, B are the interval of the air mass flow value of multiple sample parts, and r is experience factor;
In step S5 and according to following formula (2) computation interval increment size:
Wherein, D is interval increment value, and N is the deviation allowed band of the first distribution consistency degree; C is the number of the group of multiple sample parts; A, B are the interval of the air mass flow value of multiple sample parts;
Step S6 comprises: between packet zone be
Wherein, D is interval increment value, and m is the integer of 0 to C-1, and C is the number of the group of multiple sample parts; N is the deviation allowed band of the first distribution consistency degree; A, B are the interval of the air mass flow value of multiple sample parts.
Wherein, formula (4) by
Obtain after abbreviation
Preferably, experience factor r=2.
So, determine the number of the group of multiple sample parts according to formula (4): C={{(B-A)/[(B+A)/2] }/r}/± N=6 thus determine multiple sample parts to be divided into 6 groups.
So, calculate the interval increment value of the air mass flow value corresponding to adjacent two different groups according to formula (2): D=(B-A)/C=0.1, thus determine that interval increment value is 0.1.
So, determine between packet zone:
One group [4.1,4.2), two groups [4.2,4.3), three groups [4.3,4.4), four groups [4.4,5), five groups [4.5,4.6), six groups [4.6,4.7].
Such as, now have an air mass flow value treating grouping part to be 4.23, then can learn according between packet zone, this treats that grouping part should be divided into second group.
In prior art, the air mass flow value of part is filled in papery tables of data, because papery data are not easily preserved, thus when loss of data just will affect the use of part.And in the present invention, the group of the air mass flow value of part is marked on part, thus make the air mass flow Value Data persistence of part, facilitate staff to use.
As second aspect of the present invention, provide a kind of method for group matching of swirler assembly.As shown in Figure 2, method for group matching comprises:
Step S10; First part of swirler and the second part are divided into groups according to above-mentioned group technology;
Step S20: choose multiple first parts in same group, chooses multiple second parts in same group, and multiple first part and multiple second part are combined pairing correspondingly becomes multiple pairing assembly; Measure the assembly air mass flow value of multiple pairing assembly; By assembly air mass flow value according to order sequence from small to large;
Step S30: according to the assembly air mass flow value after sequence, from multiple pairing assembly, assembly air mass flow is worth ascending order and chooses multiple pairing assembly as multiple assembly to be screened with the swirler assembly that completes a set.
According to method for group matching, first the first part and the second part are divided into groups according to above-mentioned group technology respectively.Such as, the first part is divided into 6 groups, the second part is divided into 3 groups.Now, need to take out multiple part from the first part of same group for subsequent use, such as from first group, choose multiple part, multiple part can certainly be chosen from second group, the part that group is different can not be used with, but the part itself that group is different does not have the differentiation of quality, as long as what select is the part of same group.Then, need from selecting multiple second part, be still will choose from same group, the second part of different group can not be used with.Afterwards, multiple first part and multiple second part are matched correspondingly.
Pairing assembly after pairing is carried out assembly air mass flow value measure, and according to the order that assembly air mass flow value is measured from small to large, pairing assembly is sorted.Then according to the result of sequence, multiple assembly to be screened is chosen.Such as, have 50 pairing assemblies, and the order that 50 pairing assemblies are measured from small to large according to assembly air mass flow value is sorted, choose front 14 pairing assemblies as assembly to be screened.
Preferably, in a preferred embodiment, step S30 also comprises step S31:
After choosing multiple assembly to be screened, calculate the mean value of the assembly air mass flow value of multiple assembly to be screened, and calculate the second distribution consistency degree of the assembly air mass flow of each assembly to be screened according to following formula (5):
Wherein, δ
2it is the second distribution consistency degree of the assembly air mass flow of each assembly to be screened; Q is the assembly air mass flow value of some assemblies to be screened; P is the average component air mass flow value of multiple assembly to be screened;
Then the assembly to be screened of the second distribution consistency degree in deviation allowed band is selected to complete a set swirler assembly.
Such as, choose 14 pairing assemblies as assembly to be screened, calculate the mean value of the assembly air mass flow value of these 14 assemblies to be screened, and calculate the second distribution consistency degree δ of the assembly air mass flow of each assembly to be screened according to formula (5)
2, the δ of such as, first assembly to be screened in 14 assemblies to be screened
2=1.54%, then the assembly air mass flow value of this first assembly to be screened can not meet the deviation of the second distribution consistency degree, and thus this first assembly to be screened needs to put back to warehouse.Such as, the δ of the 3rd assembly to be screened
2=0.8%, then the assembly air mass flow value of the 3rd assembly to be screened can meet the deviation of the second distribution consistency degree, and thus the 3rd assembly to be screened should remain, for the swirler assembly that completes a set.After the assembly some to be screened in assembly to be screened is eliminated, need the assembly also not carrying out choosing in the pairing assembly screened for substituting from pairing assembly.
Further, method for group matching also comprises:
Step S40: added by the undesirable assembly to be screened of the second distribution consistency degree in multiple assembly to be screened after not electing the assembly of assembly to be screened as in multiple pairing assembly, repeats step S30, with the swirler assembly that completes a set.
Need wait for subsequent use after the undesirable assembly to be screened of second distribution consistency degree is put back to warehouse in multiple assembly to be screened, when again screening, this assembly repeats step S30 by with other not screened assemblies, again judge whether the deviation of satisfied second distribution consistency degree, till this assembly to be screened meets the deviation of the second distribution consistency degree, thus the swirler assembly that completes a set.
These are only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. a group technology for swirler part, is characterized in that, comprising:
Step S1: the air mass flow value measuring multiple sample parts, obtains the air mass flow value of each described sample parts;
Step S2; By the air mass flow value of described multiple sample parts according to order sequence from small to large;
Step S3: determine that according to the result of described sequence the interval of the air mass flow value of described multiple sample parts is for (A, B);
Step S4: number interval being accounted for the number percent determination group of the mean value of described B and A according to described B and A difference;
Step S5: the interval increment value determining the air mass flow value corresponding to adjacent two different groups;
Step S6: and according to described interval increment value, described interval is divided between the multiple packet zone for divide described group corresponding with described group;
Step S7: according between the described packet zone that the air mass flow value of part of waiting to divide into groups falls into, determine each described in wait to divide into groups the group of part;
Step S8: the group of part of waiting described in each to divide into groups is marked at respectively each described in treat on grouping part.
2. group technology according to claim 1, is characterized in that,
Determine the number of the group of described multiple sample parts according to following formula (1) in described step S4:
Wherein, C is the number of the group of described multiple sample parts; A, B are the described interval of the air mass flow value of described multiple sample parts;
Described interval increment value is determined according to following formula (2) in described step S5:
Wherein, D is described interval increment value; C is the number of the group of described multiple sample parts; A, B are the described interval of the air mass flow value of described multiple sample parts;
Be [(A+m*D), (A+ (m+1) * D)] between the described packet zone in described step S6,
Wherein, m is the integer of 0 to C-1, and C is the number of the group of described multiple sample parts; D is described interval increment value; A, B are the described interval of the air mass flow value of described multiple sample parts.
3. group technology according to claim 1, is characterized in that,
Also comprise between described step S2 and described step S3:
Step S21: according to the result of described sequence, is divided into many groups by described multiple sample parts, calculates the average air flow value often organizing described sample parts, and calculates the first distribution consistency degree of the air mass flow of each described sample parts according to following formula (3):
Wherein: δ
1it is the first distribution consistency degree of the air mass flow of each described sample parts; E is the air mass flow value of some described sample parts; F is the average air flow value of the described sample parts of this some described sample parts places group;
Step S22: select the air mass flow value of the described sample parts of described first distribution consistency degree in deviation allowed band to determine described interval.
4. group technology according to claim 3, is characterized in that,
Determine the number of the group of described multiple sample parts according to following formula (4) in described step S4:
Wherein, C is the number of the group of described multiple sample parts, and N is the deviation allowed band of described first distribution consistency degree; A, B are the described interval of the air mass flow value of described multiple sample parts, and r is experience factor;
Described interval increment value is calculated according to following formula (2) in step S5:
Wherein, D is interval increment value, and N is the deviation allowed band of described first distribution consistency degree; C is the number of the group of described multiple sample parts; A, B are the described interval of the air mass flow value of described multiple sample parts;
Step S6 comprises: between described packet zone be
Wherein, D is described interval increment value, and m is the integer of 0 to C-1, and C is the number of the group of described multiple sample parts; N is the deviation allowed band of described first distribution consistency degree; A, B are the described interval of the air mass flow value of described multiple sample parts.
5. a method for group matching for swirler assembly, is characterized in that, comprising:
Step S10; First part of swirler and the second part group technology according to any one of claim 1 to 4 are divided into groups;
Step S20: choose multiple first parts in same group, chooses multiple second parts in same group, and described multiple first part and described multiple second part are combined pairing correspondingly becomes multiple pairing assembly; Measure the assembly air mass flow value of described multiple pairing assembly; By described assembly air mass flow value according to order sequence from small to large;
Step S30: according to the described assembly air mass flow value after sequence, from described multiple pairing assembly, assembly air mass flow is worth ascending order and chooses multiple pairing assembly as multiple assembly to be screened with the swirler assembly that completes a set.
6. method for group matching according to claim 5, is characterized in that,
Described step S30 also comprises step S31:
After choosing multiple described assembly to be screened, calculate the mean value of the assembly air mass flow value of multiple described assembly to be screened, and calculate the second distribution consistency degree of the assembly air mass flow of each described assembly to be screened according to following formula (5):
Wherein, δ
2it is the second distribution consistency degree of the assembly air mass flow of each described assembly to be screened; Q is the assembly air mass flow value of some described assemblies to be screened; P is the average component air mass flow value of described multiple assembly to be screened;
Then the assembly described to be screened of described second distribution consistency degree in deviation allowed band is selected to complete a set swirler assembly.
7. method for group matching according to claim 6, is characterized in that, described method for group matching also comprises:
Step S40: added by the undesirable described assembly to be screened of the second distribution consistency degree described in described multiple assembly to be screened after not electing the assembly of assembly to be screened as in described multiple pairing assembly, repeats step S30, with the swirler assembly that completes a set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210483047.9A CN102974950B (en) | 2012-11-23 | 2012-11-23 | Grouping method for swirler parts and group matching method for swirler assemblies |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210483047.9A CN102974950B (en) | 2012-11-23 | 2012-11-23 | Grouping method for swirler parts and group matching method for swirler assemblies |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102974950A CN102974950A (en) | 2013-03-20 |
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Address after: 412002 Dong Jiaduan, Zhuzhou, Hunan Patentee after: China Hangfa South Industrial Co. Ltd. Address before: 412002 Dong Jiaduan, Zhuzhou, Hunan Patentee before: China Southern Airlines Industry (Group) Co., Ltd. |