CN113592280A - Guarantee equipment capacity evaluation method based on test flight key production elements - Google Patents

Guarantee equipment capacity evaluation method based on test flight key production elements Download PDF

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CN113592280A
CN113592280A CN202110842719.XA CN202110842719A CN113592280A CN 113592280 A CN113592280 A CN 113592280A CN 202110842719 A CN202110842719 A CN 202110842719A CN 113592280 A CN113592280 A CN 113592280A
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equipment
guarantee
guarantee equipment
time
demand
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CN113592280B (en
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徐太强
王智
李明晏
周正宇
陈伟
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Chengdu Aircraft Industrial Group Co Ltd
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Abstract

The invention discloses a guarantee equipment capacity evaluation method based on a test flight key production element, which relates to the technical field of airport ground guarantee equipment and comprises the following steps: the method comprises the following steps: preliminarily calculating the basic demand of the guarantee equipment by limiting the use intensity of the guarantee equipment; step two: obtaining the maximum synchronous guarantee aircraft number through the satisfaction rate correction; step three: correcting the available probability of the equipment to obtain the corrected demand quantity of the guarantee equipment; step four: the method has the advantages that the method is suitable for airport ground guarantee equipment resource assessment, and the quantity of the guarantee equipment resource demand can be accurately and efficiently obtained.

Description

Guarantee equipment capacity evaluation method based on test flight key production elements
Technical Field
The invention relates to the technical field of airport ground guarantee equipment, in particular to a guarantee equipment capacity evaluation method based on a test flight key production element.
Background
The airport ground support equipment is a general name of equipment serving an airport to ensure the normal operation of an airplane. The device comprises unloading and loading (passengers, goods and mail and luggage), refueling, cleaning, examination and maintenance, charging, supplying (water and food) and airplane push-and-pull equipment on the airport, such as airplane tractors, refueling trucks (bolts and wells), water supply vehicles, air-conditioning vehicles, lifting platform vehicles, ferry vehicles, air source vehicles, power vehicles, ground power supplies, passenger gangways, automatic lifting boarding vehicles, boarding bridges, special delivery trucks, food vehicles and sewage vehicles. In addition, in order to ensure the safe operation of the airplane on the airport, field maintenance and detection equipment (such as cleaning vehicles, snow blowers, glue removing vehicles, grass cutters, pavement friction coefficient testing vehicles and the like), bird repelling equipment and the like are also required to be equipped.
Equipment resources are important for ensuring base-level maintenance and airplane production tests in the whole debugging stage, scientific optimization of equipment resource allocation can effectively solve the problems of insufficient and excessive equipment resources at present, and can shorten equipment maintenance waiting time, reduce expenditure consumption and greatly improve equipment maintenance efficiency. By looking up the equipment maintenance support resource configuration optimization documents in recent years, the method is mainly suitable for the resource configuration process of army-level equipment, the phenomena of dynamic quantity change, high service frequency, long period and the like of equipment resource service objects of a factory exist, if the existing model is used for evaluating airport ground support equipment, the quantity of the required equipment resource cannot be accurately and efficiently obtained, and evaluation planning cannot be well carried out on airport ground support equipment resources.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a guarantee equipment capacity evaluation method based on a test flight key production element, so as to achieve the effect of accurately and efficiently obtaining the required quantity of airport ground guarantee equipment resources.
In order to solve the technical problems, the invention adopts the following technical scheme:
a guarantee equipment capacity evaluation method based on test flight key production elements comprises the following steps:
the method comprises the following steps: the basic demand of the security equipment is preliminarily calculated by limiting the use intensity of the security equipment, and the calculation formula is as follows:
Figure RE-GDA0003261632780000021
and rho is less than 1;
in the above formula, rho is the intensity of the equipment, lambdagFrequency of maintenance for failure of secured product, lambdazThe frequency, t, of the safeguard device being required for normal use of the aircraftgTo ensure maintenance time for equipment failure, tzTo ensure mean time of the plant process, tsSigma is the fault rate of a single finished product for the total working time of the year, and c is the basic demand of the guarantee equipment;
step two: and obtaining the maximum synchronous guarantee aircraft number through the satisfaction rate correction, wherein the calculation formula is as follows:
Figure RE-GDA0003261632780000022
Figure RE-GDA0003261632780000023
Figure RE-GDA0003261632780000024
in the above formula, PETo satisfy the rate, m1Securing the number of aircraft for maximum synchronization, tdFor all process times of a single aircraft, P0For the probability that no airplane needs the guarantee of the guarantee equipment, the definition of other parameter factors is consistent with that in the step one;
step three: and correcting the available probability of the equipment to obtain the corrected demand quantity of the guarantee equipment, wherein the calculation formula is as follows:
Figure RE-GDA0003261632780000031
Figure RE-GDA0003261632780000032
in the above formula, PkIs the device availability probability, teAs the equipment unavailable time, m2The definition of other parameter factors is consistent with that in the second step for the corrected demand quantity of the guarantee equipment;
step four: and correcting again by using the multi-site system to obtain the final guarantee equipment demand, wherein the calculation formula is as follows:
m3＝m2+n；
in the above formula, m3And n is an outgoing parallel task site for finally guaranteeing the equipment demand.
Preferably, in step one, the guaranteed finished product failure repair frequency λgThe failure rate of a single finished product sigma is the number of times the finished product is used before lead sealing is finished, and the number of finished products of a single airplane matched with the number of finished products of the single airplane is the annual output of the airplane.
Preferably, in step one, the normal use of the aircraft requires the frequency λ of the safeguarding devicezThe number of times the guaranteed equipment is required in the process is the annual aircraft production.
Preferably, in step three, the device is unavailable for time teMaintenance time + scheduled maintenance time + trouble shooting time + turnaround time.
The invention has the beneficial effects that:
1. the method establishes a set of brand-new guarantee equipment resource evaluation model suitable for the whole machine debugging stage, and can directly obtain the final guarantee equipment demand through the model.
2. Lambda required in the model established by the inventiong、λz、tg、tz、tsThe factors can be directly obtained, and the equipment failure trend prediction and the equipment unavailable time t are added into the established modeleThe proportion factor effectively optimizes the evaluation process, and the scheduling element of the debugging stage is added in the established model limiting condition, so that the method can ensureThe high utilization rate of the equipment resources is ensured, a multi-region parallel work element, namely an outgoing parallel task site n, is added into the established model limiting conditions, the availability rate of the equipment resources is effectively ensured, and the final guarantee equipment demand can be accurately and efficiently obtained through multiple corrections.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments.
Examples
The embodiment provides a guarantee equipment capacity evaluation method based on a test flight key production element, which comprises the following steps:
the method comprises the following steps: the basic demand of the security equipment is preliminarily calculated by limiting the use intensity of the security equipment, and the calculation formula is as follows:
Figure RE-GDA0003261632780000041
and rho is less than 1;
in the above formula, rho is the intensity of the equipment, lambdagFrequency of maintenance for failure of secured product, lambdazThe frequency, t, of the safeguard device being required for normal use of the aircraftgTo ensure maintenance time for equipment failure, tzTo ensure mean time of the plant process, tsSigma is the fault rate of a single finished product for the total working time of the year, and c is the basic demand of the guarantee equipment;
in the formula, λ isg、λz、tg、tz、tsThe factors can be directly obtained, the variables are few, the calculation is accurate, reasonable and efficient, and the applicability is good;
step two: and obtaining the maximum synchronous guarantee aircraft number through the satisfaction rate correction, wherein the calculation formula is as follows:
Figure RE-GDA0003261632780000042
Figure RE-GDA0003261632780000051
Figure RE-GDA0003261632780000052
in the above formula, PETo satisfy the rate, m1Securing the number of aircraft for maximum synchronization, tdFor all process times of a single aircraft, P0For the probability that no airplane needs the guarantee of the guarantee equipment, the definition of other parameter factors is consistent with that in the step one;
by the formula
Figure RE-GDA0003261632780000053
The basic demand c of the equipment can be corrected and guaranteed, the formula represents that the equipment can be allocated through a production scheduling plan, and the use requirement can be met to the maximum extent;
step three: and correcting the available probability of the equipment to obtain the corrected demand quantity of the guarantee equipment, wherein the calculation formula is as follows:
Figure RE-GDA0003261632780000054
Figure RE-GDA0003261632780000055
in the above formula, PkIs the device availability probability, teAs the equipment unavailable time, m2The definition of other parameter factors is consistent with that in the second step for the corrected demand quantity of the guarantee equipment;
since the equipment is not used for a long period of time and there is a time for maintenance, regular inspection, maintenance, and turnover (the equipment is transported to a use area), it is necessary to make this part impossibleThe actual available time of the equipment can be obtained by time removal, so that the equipment failure trend prediction and the equipment unavailable time t are introducedeThe proportion factor effectively optimizes the evaluation process;
step four: and correcting again by using the multi-site system to obtain the final guarantee equipment demand, wherein the calculation formula is as follows:
m3＝m2+n；
in the above formula, m3And n is an outgoing parallel task site for finally guaranteeing the equipment demand.
It should be noted that, a lot of locations need to be guaranteed in a factory, the period is long, each location carries part of the guaranteed equipment, if the part of the guaranteed equipment is not filled in the factory, the resources of the guaranteed equipment in the factory are insufficient, and normal production cannot be maintained, based on this, the outgoing parallel task location n is increased, and the final guaranteed equipment demand m can be obtained accurately by revising the location again3。
Specifically, in the step one, the failure maintenance frequency lambda of the guaranteed finished productgThe failure rate of a single finished product sigma is the number of times the finished product is used before lead sealing is finished, and the number of finished products of a single airplane matched with the number of finished products of the single airplane is the annual output of the airplane.
In particular, in step one, the normal use of the aircraft requires the frequency λ of the safeguarding devicezThe number of times the guaranteed equipment is required in the process is the annual aircraft production.
Specifically, in step three, the device unavailable time teMaintenance time + scheduled maintenance time + trouble shooting time + turnaround time.
The invention establishes a brand-new guarantee equipment resource evaluation model suitable for the whole machine debugging stage, and the final guarantee equipment demand can be directly obtained through the model, wherein the lambda is required in the established modelg、λz、tg、tz、tsThe factors can be directly obtained, and the equipment failure trend prediction and the equipment unavailable time t are added into the established modeleThe ratio factor effectively optimizes the evaluation process, and the scheduling element of the debugging stage is added in the established model limiting condition, so that the method canThe high utilization rate of equipment resources can be guaranteed, a multi-region parallel work element, namely an outgoing parallel task site n, is added into the established model limiting conditions, the availability rate of the equipment resources is effectively guaranteed, basic demand of the guaranteed equipment is obtained through calculation of the use intensity of the guaranteed equipment, and the quantity of equipment demands is corrected through rate-meeting correction, equipment available probability correction and multi-site use correction, so that the final demand of the guaranteed equipment is accurately and efficiently obtained.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.

Claims (4)

1. A guarantee equipment capacity evaluation method based on test flight key production elements is characterized by comprising the following steps:
the method comprises the following steps: the basic demand of the security equipment is preliminarily calculated by limiting the use intensity of the security equipment, and the calculation formula is as follows:
Figure RE-FDA0003261632770000011
and rho is less than 1;
in the above formula, rho is the intensity of the equipment, lambdagFrequency of maintenance for failure of secured product, lambdazThe frequency, t, of the safeguard device being required for normal use of the aircraftgTo ensure maintenance time for equipment failure, tzTo ensure mean time of the plant process, tsSigma is the fault rate of a single finished product for the total working time of the year, and c is the basic demand of the guarantee equipment;
step two: and obtaining the maximum synchronous guarantee aircraft number through the satisfaction rate correction, wherein the calculation formula is as follows:
Figure RE-FDA0003261632770000012
Figure RE-FDA0003261632770000013
Figure RE-FDA0003261632770000014
in the above formula, PETo satisfy the rate, m1Securing the number of aircraft for maximum synchronization, tdFor all process times of a single aircraft, P0For the probability that no airplane needs the guarantee of the guarantee equipment, the definition of other parameter factors is consistent with that in the step one;
step three: and correcting the available probability of the equipment to obtain the corrected demand quantity of the guarantee equipment, wherein the calculation formula is as follows:
Figure RE-FDA0003261632770000021
Figure RE-FDA0003261632770000022
in the above formula, PkIs the device availability probability, teAs the equipment unavailable time, m2The definition of other parameter factors is consistent with that in the second step for the corrected demand quantity of the guarantee equipment;
step four: and correcting again by using the multi-site system to obtain the final guarantee equipment demand, wherein the calculation formula is as follows:
m3＝m2+n；
in the above formula, m3For finally ensuring the demand of the equipmentAnd n is an outgoing parallel task site.
2. The method for evaluating the capability of the guaranteed equipment based on the test flight key production elements as claimed in claim 1, wherein in the step one, the guaranteed finished product fault maintenance frequency λgThe failure rate of a single finished product sigma is the number of times the finished product is used before lead sealing is finished, and the number of finished products of a single airplane matched with the number of finished products of the single airplane is the annual output of the airplane.
3. The method for evaluating the capability of the guarantee equipment based on the test flight key production element as claimed in claim 2, wherein in the step one, the frequency λ of the guarantee equipment is required by the normal use of the airplanezThe number of times the guaranteed equipment is required in the process is the annual aircraft production.
4. The method for evaluating the capability of guarantee equipment based on the test flight key production elements as claimed in claim 1, wherein the equipment unavailable time t is determined in step threeeMaintenance time + scheduled maintenance time + trouble shooting time + turnaround time.
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100017241A1 (en) * 2007-05-31 2010-01-21 Airbus France Method, system, and computer program product for a maintenance optimization model
CN108053036A (en) * 2017-10-17 2018-05-18 中国人民解放军海军工程大学 A kind of Large Complex Equipment Maintenance Support Capability Assessment method
CN110490445A (en) * 2019-08-13 2019-11-22 成都飞机工业（集团）有限责任公司 A kind of military secret is taken a flight test complete period integrated supportability dynamic evaluation model
CN110991793A (en) * 2019-10-25 2020-04-10 中国飞行试验研究院 Aviation security equipment identification resource allocation method

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