CN109685224A - A kind of management method for formulating engine maintenance decision according to lifetime piece - Google Patents
A kind of management method for formulating engine maintenance decision according to lifetime piece Download PDFInfo
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- CN109685224A CN109685224A CN201811591805.2A CN201811591805A CN109685224A CN 109685224 A CN109685224 A CN 109685224A CN 201811591805 A CN201811591805 A CN 201811591805A CN 109685224 A CN109685224 A CN 109685224A
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- 238000012423 maintenance Methods 0.000 title claims abstract description 140
- 238000007726 management method Methods 0.000 title claims abstract description 17
- 238000004364 calculation method Methods 0.000 claims description 20
- 230000008439 repair process Effects 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 4
- 230000007547 defect Effects 0.000 abstract description 2
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q10/00—Administration; Management
- G06Q10/20—Administration of product repair or maintenance
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q10/00—Administration; Management
- G06Q10/04—Forecasting or optimisation specially adapted for administrative or management purposes, e.g. linear programming or "cutting stock problem"
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q10/00—Administration; Management
- G06Q10/06—Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling
- G06Q10/063—Operations research, analysis or management
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- G06Q50/40—
Abstract
The present invention provides a kind of management method that engine maintenance decision is formulated according to lifetime piece, which solve the management defects of existing aircraft engine maintenance decision, it includes the typing of engine basic data, formulates engine maintenance plan, the minimum maintenance level for extracting engine replacement lifetime piece information, judging each unit body, determines engine maintenance scheme, invention can be widely used in aircraft engine maintenance technical field.
Description
Technical field
The present invention relates to aircraft engine maintenance technical fields, formulate engine dimension according to lifetime piece more particularly, to a kind of
Repair the management method of decision.
Background technique
Aero-engine is major impetus source and the air entraining device of aircraft, is the complicated heating power for integrating mechanical electronic hydraulic
Machinery, meanwhile, aero-engine works in high temperature, high speed and hyperbaric environment, although engine belongs to high reliability equipment,
It can cause biggish security risk to the flight safety of aircraft in wing failure, therefore, for the reliable fortune for guaranteeing aero-engine
Row requires to carry out planned maintenance and maintenance entirely using, therefore, it is necessary to aero-engine in life cycle
Maintenance decision is managed collectively.
As the important component of aircraft, the maintenance of engine accounts for most of airline's operation.How to guarantee to send out
Each unit body maintenance decision is the emphasis of each airline's concern in motivation normal operation and maintenance process, is directed to engine at present
Maintenance program formulate, depend primarily on machine life prediction, and have ignored single lifetime piece replacement restrictive condition to maintenance side
The influence of case can replace restrictive condition from single lifetime piece to formulate the maintenance program of engine for this status.
Summary of the invention
The present invention is provided and a kind of is formulated according to lifetime piece aiming at the management defect of existing aircraft engine maintenance decision
The management method of engine maintenance decision.
For this purpose, the present invention provides a kind of management method for formulating engine maintenance decision according to lifetime piece, including it is following
Step:
Step 1: the typing of engine basic data；
Step 2: formulating engine maintenance plan；
Step 3: extracting engine and replace lifetime piece information；
Step 4: judging the minimum maintenance level of each unit body；
Step 5: determining engine maintenance scheme.
Preferably, step 1 is main is realized by following steps:
Engine type model is as follows:
Entyp={ ID, name }
Wherein ID be engine type globally unique identifier, by 36 bit digitals, upper and lower case letter and underscore rent at,
Name is engine type title, this model is used to nonproductive poll engine type information；
Engine mockup is as follows:
ENGINE={ esn, basicInfo }
Wherein esn is the globally unique identifier of engine, and basicInfo is other essential informations of engine, this model is used
Carry out nonproductive poll engine information；
Engine type structural model is as follows:
EnStructure={ ID, entype, pid, name, onumber, type, basicinfo }
Wherein ID is the globally unique identifier of engine type structure, is rented by 36 bit digitals, upper and lower case letter and underscore
At entype indicates that engine type, pid indicate that father node ID, name indicate that nodename, onumber indicate the position of node
It sets or piece number, type indicates node type, if type is position, onumber record position number, if type is it
He, then onumber records piece number, and basicInfo is other essential informations of engine type structure, this model is used to nonproductive poll
Engine maintenance scheme information；
Engine life part model is as follows:
LLP={ ID, llpname, llpnum, llpsn, unitname, unitnum, leftcycle, basicinfo }
Wherein ID be engine life part globally unique identifier, by 36 bit digitals, upper and lower case letter and underscore rent at,
Llpname is lifetime piece title, and llpnum is lifetime piece piece number, and llpsn is lifetime piece serial number, and unitnum is cell cube piece number,
Unitname is cell cube title, and leftcycle is lifetime piece remaining life, and basicinfo is other basic informations of lifetime piece,
This model is used to auxiliary establishing engine maintenance scheme information；
Cell cube maintenance level model is as follows:
UnitOrder=ID, entype, unitname, unitnum, workorder, standardlever,
basicinfo}
Wherein ID is the globally unique identifier of cell cube maintenance level, is rented by 36 bit digitals, upper and lower case letter and underscore
At entype is engine type information, and unitname is cell cube title, and unitnum is cell cube piece number, workorder
For the maintenance level title of cell cube, standardlevel is the standardization rank of cell cube maintenance level, and basicinfo is
The other information of cell cube maintenance level, this model are used to auxiliary establishing engine maintenance scheme information；
The replaceable lifetime piece model of cell cube is as follows:
UnitLLp=ID, entype, unitname, unitnum, standardlevel, llpname, llpnum,
basicinfo}
Wherein ID is the globally unique identifier of the replaceable lifetime piece of cell cube, by 36 bit digitals, upper and lower case letter and lower stroke
It is engine type information that line, which is rented into, entype, and unitname is cell cube title, and unitnum is cell cube piece number,
Standardlevel is the standardization rank of cell cube maintenance level, and llpname is lifetime piece title, and llpnum is lifetime piece
Piece number, basicinfo are the other information of the replaceable lifetime piece of cell cube, this model is used to auxiliary establishing engine maintenance scheme
Information；
Engine maintenance scheme model is as follows:
ENGINEREPAIR=id, esn, repairdate, removedate, maintscope, unitorder,
llpleft,basicinfo}
Wherein ID is the globally unique identifier of engine maintenance scheme, is rented by 36 bit digitals, upper and lower case letter and underscore
Be engine mark at, esn, repairdate indicate engine into factory's maintenance time, removedate indicates engine
The time is removed, maintscope indicates the complete machine maintenance range of this engine maintenance, and unitorder indicates that this engine is tieed up
The maintenance level of each unit body is repaired, llpleft indicates that the least life of lifetime piece, basicInfo are engine maintenance scheme
Other essential informations, this model be used to nonproductive poll engine maintenance scheme information；
It is as follows that engine maintenance replaces lifetime piece model:
EngineLLp=ID, llpname, llpnum, llpsn, unitname, unitnum, leftcycle,
basicinfo}
Wherein ID be engine maintenance replace lifetime piece globally unique identifier, by 36 bit digitals, upper and lower case letter and under
Scribing line is rented at llpname is lifetime piece title, and llpnum is lifetime piece piece number, and llpsn is lifetime piece serial number, and unitnum is single
First body piece number, unitname are cell cube title, and leftcycle is lifetime piece remaining life, and basicInfo is engine maintenance
Other essential informations of lifetime piece are replaced, this model is used to nonproductive poll engine maintenance scheme information.
Preferably, step 2 is main is realized by following steps:
According to engine practical operation situation, maintenance project is formulated for the engine that plan repairs, setting is started
Machine removes the indexs such as date, the minimum remaining life of lifetime piece, with this come each lifetime piece remaining longevity when predicting that engine removes
Life.
Preferably, step 3 is main is realized by following steps:
Determine engine first removes the date, if system is not set, can not carry out lifetime piece predicting residual useful life,
Calculation method is as follows:
Check whether that the expectation lifetime piece least life provided with engine can not carry out the longevity if system is not set
The comparison of part remaining life is ordered, calculation method is as follows:
Then according to the date is removed, the remaining life that each unit body on engine reaches this date is calculated, in this, as sentencing
The basic condition whether disconnected lifetime piece needs replacing, calculation method are as follows:
The expectation lifetime piece least life finally formulated according to maintenance program, judges which lifetime piece needs replacing, and adds
Enter into maintenance program, calculation method is as follows:
Preferably, step 4 is main is realized by following steps:
The replaceable lifetime piece information of query unit body first, if inquiry less than, can not carry out cell cube maintenance grade
It does not predict, calculation method is as follows:
Then inquire whether the lifetime piece is replaced in the replacement lifetime piece information of maintenance program, calculation method is as follows:
If having found the replacement information of lifetime piece, the cell cube in the replaceable lifetime piece information of cell cube is repaired into grade
Not as the cell cube maintenance level in maintenance program, calculation method is as follows:
if(unitLLp！=null)
returnunitLLP.getStandardlevel()；
}。
Preferably, step 5 is main is realized by following steps:
The minimum maintenance level of engine each unit body according to obtained in step 4, based on this, according to practical feelings
Condition properly increases cell cube maintenance level, according to the whole repair of single engine and entire fleet in practical O&M,
Final maintenance program is modified, system recommendation scheme is as amendment reference.
The present invention proposes a kind of method for formulating maintenance program for the cell cube lifetime piece of engine, basic data: builds
The information model of vertical engine basic data, including engine, engine structure, cell cube lifetime piece, and carry out real-time update；
Upper layer data: generating engine maintenance scheme, and as basic data updates, as a result changes at any time；For the formulation of maintenance program
Important evidence is provided, the single unit body lifetime piece maintenance condition of engine is combined, from the maintenance decision of engine complete machine with
And the comprehensive maintenance program for formulating engine of maintenance decision of engine each unit body, it is provided with for the maintenance decision of engine
The management method of effect effectively raises engine maintenance efficiency.
Detailed description of the invention
Fig. 1 is integrated stand composition of the invention；
Fig. 2 is the flow chart that the present invention program formulates；
Fig. 3 is to extract replacement lifetime piece information flow chart；
Fig. 4 is the minimum maintenance level flow chart of judging unit body.
Specific embodiment
The specific embodiment that the present invention will be described in detail with reference to the accompanying drawings.
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, engine maintenance decision is formulated according to lifetime piece the present invention provides a kind of
Management method, comprising the following steps:
Step 1: the typing of engine basic data:
The management of essential information is realized using relevant database, including engine type information, engine information, is started
Machine type structure information, engine life part information, cell cube maintenance level information, the replaceable lifetime piece information of cell cube, hair
Motivation maintenance program, engine maintenance replace lifetime piece information, this part mainly provides the clothes of the data query based on relational model
Business and the service of basic data increment；The replaceable lifetime piece information of cell cube maintenance level information, cell cube and engine structure are believed
Close association is ceased, the incidence relation between three is established, convenient for the lifetime piece information of query unit body.
In essential information, the essential information of engine type and engine is initially set up, engine maintenance side is used as
The basis that case is formulated.
Then the lifetime piece information for establishing engine type structural information and engine, by these information in a manner of auto correlation
Storage, enables entire engine structure to be shown and be managed with tree structure, the main information of engine type structure has
Nodename, father node, node type, node species, position/piece number, quantity etc., the main information of engine life part has hair
Motivation serial number, unit body position, lifetime piece piece number, lifetime piece serial number, lifetime piece title, data time, remaining life and other
Time cyclical information.
Resettle the maintenance level information of cell cube and the replaceable lifetime piece information of cell cube, by these information with start
Machine type structure information is associated, and the main information of cell cube maintenance level has engine type, unit body position, cell cube
Title, maintenance level etc., the main information of the replaceable lifetime piece of cell cube have engine type, unit body position, cell cube name
Title, cell cube maintenance level, lifetime piece piece number etc..
Finally establish the maintenance program of engine, the final result that storage is determined according to lifetime piece, including engine maintenance
The lifetime piece information to be replaced, and be applied in practice in conjunction with actual conditions.
Engine type model is as follows:
Entyp={ ID, name }
Wherein ID be engine type globally unique identifier, by 36 bit digitals, upper and lower case letter and underscore rent at,
Name is engine type title, this model is used to nonproductive poll engine type information；
Engine mockup is as follows:
ENGINE={ esn, basicInfo }
Wherein esn is the globally unique identifier of engine, and basicInfo is other essential informations of engine, this model is used
Carry out nonproductive poll engine information；
Engine type structural model is as follows:
EnStructure={ ID, entype, pid, name, onumber, type, basicinfo }
Wherein ID is the globally unique identifier of engine type structure, is rented by 36 bit digitals, upper and lower case letter and underscore
At entype indicates that engine type, pid indicate that father node ID, name indicate that nodename, onumber indicate the position of node
It sets or piece number, type indicates node type, if type is position, onumber record position number, if type is it
He, then onumber records piece number, and basicInfo is other essential informations of engine type structure, this model is used to nonproductive poll
Engine maintenance scheme information；
Engine life part model is as follows:
LLP={ ID, llpname, llpnum, llpsn, unitname, unitnum, leftcycle, basicinfo }
Wherein ID be engine life part globally unique identifier, by 36 bit digitals, upper and lower case letter and underscore rent at,
Llpname is lifetime piece title, and llpnum is lifetime piece piece number, and llpsn is lifetime piece serial number, and unitnum is cell cube piece number,
Unitname is cell cube title, and leftcycle is lifetime piece remaining life, and basicinfo is other basic informations of lifetime piece,
This model is used to auxiliary establishing engine maintenance scheme information；
Cell cube maintenance level model is as follows:
UnitOrder=ID, entype, unitname, unitnum, workorder, standardlever,
basicinfo}
Wherein ID is the globally unique identifier of cell cube maintenance level, is rented by 36 bit digitals, upper and lower case letter and underscore
At entype is engine type information, and unitname is cell cube title, and unitnum is cell cube piece number, workorder
For the maintenance level title of cell cube, standardlevel is the standardization rank of cell cube maintenance level, and basicinfo is
The other information of cell cube maintenance level, this model are used to auxiliary establishing engine maintenance scheme information；
The replaceable lifetime piece model of cell cube is as follows:
UnitLLp=ID, entype, unitname, unitnum, standardlevel, llpname, llpnum,
basicinfo}
Wherein ID is the globally unique identifier of the replaceable lifetime piece of cell cube, by 36 bit digitals, upper and lower case letter and lower stroke
It is engine type information that line, which is rented into, entype, and unitname is cell cube title, and unitnum is cell cube piece number,
Standardlevel is the standardization rank of cell cube maintenance level, and llpname is lifetime piece title, and llpnum is lifetime piece
Piece number, basicinfo are the other information of the replaceable lifetime piece of cell cube, this model is used to auxiliary establishing engine maintenance scheme
Information；
Engine maintenance scheme model is as follows:
ENGINEREPAIR=id, esn, repairdate, removedate, maintscope, unitorder,
llpleft,basicinfo}
Wherein ID is the globally unique identifier of engine maintenance scheme, is rented by 36 bit digitals, upper and lower case letter and underscore
Be engine mark at, esn, repairdate indicate engine into factory's maintenance time, removedate indicates engine
The time is removed, maintscope indicates the complete machine maintenance range of this engine maintenance, and unitorder indicates that this engine is tieed up
The maintenance level of each unit body is repaired, llpleft indicates that the least life of lifetime piece, basicInfo are engine maintenance scheme
Other essential informations, this model be used to nonproductive poll engine maintenance scheme information；
It is as follows that engine maintenance replaces lifetime piece model:
EngineLLp=ID, llpname, llpnum, llpsn, unitname, unitnum, leftcycle,
basicinfo}
Wherein ID be engine maintenance replace lifetime piece globally unique identifier, by 36 bit digitals, upper and lower case letter and under
Scribing line is rented at llpname is lifetime piece title, and llpnum is lifetime piece piece number, and llpsn is lifetime piece serial number, and unitnum is single
First body piece number, unitname are cell cube title, and leftcycle is lifetime piece remaining life, and basicInfo is engine maintenance
Other essential informations of lifetime piece are replaced, this model is used to nonproductive poll engine maintenance scheme information.
Step 2: formulate engine maintenance plan:
According to engine practical operation situation, maintenance project is formulated for the engine that plan repairs, setting is started
Machine removes the indexs such as date, the minimum remaining life of lifetime piece, with this come each lifetime piece remaining longevity when predicting that engine removes
Life.
Step 3: it extracts engine and replaces lifetime piece information:
Determine engine first removes the date, if system is not set, can not carry out lifetime piece predicting residual useful life,
Calculation method is as follows:
Check whether that the expectation lifetime piece least life provided with engine can not carry out the longevity if system is not set
The comparison of part remaining life is ordered, calculation method is as follows:
Then according to the date is removed, the remaining life that each unit body on engine reaches this date is calculated, in this, as sentencing
The basic condition whether disconnected lifetime piece needs replacing, calculation method are as follows:
The expectation lifetime piece least life finally formulated according to maintenance program, judges which lifetime piece needs replacing, and adds
Enter into maintenance program, calculation method is as follows:
Step 4: judge the minimum maintenance level of each unit body:
When formulating engine maintenance scheme, each lifetime piece minimum longevity to be achieved after determining engine maintenance is first had to
Life, system disposably extract the lifetime piece information needed replacing, i.e. remaining when lifetime piece according to the lifetime piece least life of setting
When the remaining service life is lower than the least life being arranged, then it is assumed that the lifetime piece needs replacing.
The replaceable lifetime piece information of query unit body first, if inquiry less than, can not carry out cell cube maintenance grade
It does not predict, calculation method is as follows:
Then inquire whether the lifetime piece is replaced in the replacement lifetime piece information of maintenance program, calculation method is as follows:
If having found the replacement information of lifetime piece, the cell cube in the replaceable lifetime piece information of cell cube is repaired into grade
Not as the cell cube maintenance level in maintenance program, calculation method is as follows:
if(unitLLp！=null)
returnunitLLP.getStandardlevel()；
}
Cell cube replaces lifetime piece information regulation when lifetime piece replacement, the maintenance level that cell cube must reach, i.e.,
When lifetime piece replacement, the maintenance level of cell cube cannot be below defined maintenance level, and system can be more according to cell cube
The replacement lifetime piece information for changing lifetime piece information and maintenance program determines the minimum maintenance level of each cell cube, in this, as system
Determine the important evidence of engine maintenance scheme.
Step 5: determine engine maintenance scheme:
The minimum maintenance level of engine each unit body according to obtained in step 4 based on this can be according to reality
Situation properly increases cell cube maintenance level, to meet actual demand, often to comprehensively consider single engine in practical O&M
With the whole repair of entire fleet, therefore final maintenance program can be modified, and system recommendation scheme is as amendment ginseng
It examines.
Only as described above, only specific embodiments of the present invention, when the model that cannot be limited the present invention with this and implement
It encloses, therefore the displacement of its equivalent assemblies, or according to equivalent changes and modifications made by the invention patent protection scope, should still belong to this hair
The scope that bright claims are covered.
Claims (6)
1. a kind of management method for formulating engine maintenance decision according to lifetime piece, which comprises the following steps:
Step 1: the typing of engine basic data；
Step 2: formulating engine maintenance plan；
Step 3: extracting engine and replace lifetime piece information；
Step 4: judging the minimum maintenance level of each unit body；
Step 5: determining engine maintenance scheme.
2. the management method according to claim 1 for formulating engine maintenance decision according to lifetime piece, it is characterised in that institute
It is main by following steps realization to state step 1:
Engine type model is as follows:
Entyp={ ID, name }
Wherein ID is the globally unique identifier of engine type, is rented by 36 bit digitals, upper and lower case letter and underscore at name is
Engine type title, this model are used to nonproductive poll engine type information；
Engine mockup is as follows:
ENGINE={ esn, basicInfo }
Wherein esn is the globally unique identifier of engine, and basicInfo is other essential informations of engine, this model is used to auxiliary
Help inquiry engine information；
Engine type structural model is as follows:
EnStructure={ ID, entype, pid, name, onumber, type, basicinfo }
Wherein ID be engine type structure globally unique identifier, by 36 bit digitals, upper and lower case letter and underscore rent at,
Entype indicate engine type, pid indicate father node ID, name indicate nodename, onumber indicate node position or
Person's piece number, type indicate node type, if type be position, onumber record position number, if type be other,
Onumber records piece number, and basicInfo is other essential informations of engine type structure, this model starts for nonproductive poll
Machine maintenance program information；
Engine life part model is as follows:
LLP={ ID, llpname, llpnum, llpsn, unitname, unitnum, leftcycle, basicinfo }
Wherein ID be engine life part globally unique identifier, by 36 bit digitals, upper and lower case letter and underscore rent at,
Llpname is lifetime piece title, and llpnum is lifetime piece piece number, and llpsn is lifetime piece serial number, and unitnum is cell cube piece number,
Unitname is cell cube title, and leftcycle is lifetime piece remaining life, and basicinfo is other basic informations of lifetime piece,
This model is used to auxiliary establishing engine maintenance scheme information；
Cell cube maintenance level model is as follows:
UnitOrder={ ID, entype, unitname, unitnum, workorder, standardlever, basicinfo }
Wherein ID be cell cube maintenance level globally unique identifier, by 36 bit digitals, upper and lower case letter and underscore rent at,
Entype is engine type information, and unitname is cell cube title, and unitnum is cell cube piece number, and workorder is single
The maintenance level title of first body, standardlevel are the standardization rank of cell cube maintenance level, and basicinfo is unit
The other information of body maintenance level, this model are used to auxiliary establishing engine maintenance scheme information；
The replaceable lifetime piece model of cell cube is as follows:
UnitLLp=ID, entype, unitname, unitnum, standardlevel, llpname, llpnum,
basicinfo}
Wherein ID is the globally unique identifier of the replaceable lifetime piece of cell cube, is rented by 36 bit digitals, upper and lower case letter and underscore
At, entype is engine type information, and unitname is cell cube title, and unitnum is cell cube piece number,
Standardlevel is the standardization rank of cell cube maintenance level, and llpname is lifetime piece title, and llpnum is lifetime piece
Piece number, basicinfo are the other information of the replaceable lifetime piece of cell cube, this model is used to auxiliary establishing engine maintenance scheme
Information；
Engine maintenance scheme model is as follows:
ENGINEREPAIR=id, esn, repairdate, removedate, maintscope, unitorder, llpleft,
basicinfo}
Wherein ID be engine maintenance scheme globally unique identifier, by 36 bit digitals, upper and lower case letter and underscore rent at,
Esn is engine mark, repairdate indicate engine into factory's maintenance time, removedate indicates removing for engine
Time, maintscope indicate the complete machine maintenance range of this engine maintenance, and unitorder indicates that this engine maintenance is each
The maintenance level of a cell cube, llpleft indicate that the least life of lifetime piece, basicInfo are its of engine maintenance scheme
His essential information, this model are used to nonproductive poll engine maintenance scheme information；
It is as follows that engine maintenance replaces lifetime piece model:
EngineLLp={ ID, llpname, llpnum, llpsn, unitname, unitnum, leftcycle, basicinfo }
Wherein ID is the globally unique identifier that engine maintenance replaces lifetime piece, by 36 bit digitals, upper and lower case letter and underscore
It rents into, llpname is lifetime piece title, and llpnum is lifetime piece piece number, and llpsn is lifetime piece serial number, and unitnum is cell cube
Piece number, unitname are cell cube title, and leftcycle is lifetime piece remaining life, and basicInfo is engine maintenance replacement
Other essential informations of lifetime piece, this model are used to nonproductive poll engine maintenance scheme information.
3. the management method according to claim 1 for formulating engine maintenance decision according to lifetime piece, it is characterised in that institute
It is main by following steps realization to state step 2:
According to engine practical operation situation, maintenance project is formulated for the engine that plan repairs, sets engine
The indexs such as date, the minimum remaining life of lifetime piece are removed, with this come each lifetime piece remaining life when predicting that engine removes.
4. the management method according to claim 1 for formulating engine maintenance decision according to lifetime piece, it is characterised in that institute
It is main by following steps realization to state step 3:
Determine engine first removes the date, if system is not set, can not carry out lifetime piece predicting residual useful life, calculates
Method is as follows:
Check whether that the expectation lifetime piece least life provided with engine can not carry out lifetime piece if system is not set
The comparison of remaining life, calculation method are as follows:
Then according to the date is removed, the remaining life that each unit body on engine reaches this date is calculated, in this, as judging the longevity
The basic condition whether life part needs replacing, calculation method are as follows:
The expectation lifetime piece least life finally formulated according to maintenance program, judges which lifetime piece needs replacing, and be added to
In maintenance program, calculation method is as follows:
5. the management method according to claim 1 for formulating engine maintenance decision according to lifetime piece, it is characterised in that institute
It is main by following steps realization to state step 4:
The replaceable lifetime piece information of query unit body first, if inquiry is less than it is pre- can not to carry out cell cube maintenance level
It surveys, calculation method is as follows:
Then inquire whether the lifetime piece is replaced in the replacement lifetime piece information of maintenance program, calculation method is as follows:
If having found the replacement information of lifetime piece, the cell cube maintenance level in the replaceable lifetime piece information of cell cube is made
For the cell cube maintenance level in maintenance program, calculation method is as follows:
if(unitLLp！=null)
return unitLLP.getStandardlevel()；
}。
6. the management method according to claim 5 for formulating engine maintenance decision according to lifetime piece, it is characterised in that institute
It is main by following steps realization to state step 5:
The minimum maintenance level of engine each unit body according to obtained in step 4 is fitted according to the actual situation based on this
When improving cell cube maintenance level, according to the whole repair of single engine and entire fleet in practical O&M, to most
Whole maintenance program is modified, and system recommendation scheme is as amendment reference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811591805.2A CN109685224A (en) | 2018-12-20 | 2018-12-20 | A kind of management method for formulating engine maintenance decision according to lifetime piece |
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| CN201811591805.2A CN109685224A (en) | 2018-12-20 | 2018-12-20 | A kind of management method for formulating engine maintenance decision according to lifetime piece |
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Cited By (2)
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Application publication date: 20190426 |