Method and device for prediction of maintenance time

A maintenance time, scheduled maintenance technology, applied in the direction of calculation, instrumentation, data processing applications, etc., can solve the problem of reflecting the detailed information of maintenance time design and maintenance operation process of newly developed products, waste of manpower and material resources, lagging discount, etc. problems, to achieve the expected results effective and accurate, reduce material and labor costs, and save costs

Inactive Publication Date: 2017-09-26
BEIHANG UNIV
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Problems solved by technology

Traditional maintenance time estimation methods are mostly based on empirical methods. The estimation method is usually based on previous products or similar products, and by comparing similar functional modules or structures, the maintenance time is estimated by analogy. The estimation process is more dependent on the data of similar products. It is difficult to reflect t

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  • Method and device for prediction of maintenance time
  • Method and device for prediction of maintenance time
  • Method and device for prediction of maintenance time

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Embodiment

[0118] Take the APU (Accelerated Processing Unit, accelerated processor) disassembly process of a passenger aircraft as an example. The APU is installed on the tail wing of the aircraft and is fixed on the bracket by 8 hex head screws. According to the decomposition of maintenance factors in step 1, and the actual maintenance procedures, the simulation and evaluation of the maintenance process in the virtual environment are completed, and the maintenance time is estimated by the MOD method (model method) in the scheduled operation time method as an example. It is assumed that the maintenance task is carried out at the airport in Beijing in winter night. The main steps of APU disassembly are as follows.

[0119] A. Go to the working platform of the support equipment and approach the maintenance target.

[0120] B. Open the 7 hatches

[0121] C. Open the left hatch

[0122] D. Open the right door

[0123] E. Remove the electrical connector

[0124] F. Remove 8 hex head screws

[0125] G....

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Abstract

The present invention discloses a method and device for prediction of maintenance time, and relates to the maintenance time prediction technology field. The method comprises: performing maintenance decomposition of maintenance tasks of products to be maintained, obtaining a plurality of maintenance therbligs; employing a virtual maintenance simulation platform to combine a preset motion time mechanism to obtain the standard maintenance motion time of each maintenance therblig; employing the maintenance factor of a maintenance product, and determining the maintenance correction coefficient of the standard maintenance motion time of each maintenance therblig; and predicting the maintenance time of the products to be maintained according to the maintenance correction coefficient of the standard maintenance motion time of each maintenance therblig.

Description

Technical field [0001] The present invention relates to the technical field of maintenance time prediction, in particular to a method and device for predicting maintenance time. Background technique [0002] Maintenance time is a very important quantitative evaluation factor in product maintainability design. The product maintainability level affects maintenance efficiency and guarantee resources to a certain extent. In the early stage of product design, the maintenance time is estimated to avoid the lag of maintainability design. Traditional maintenance time estimation methods are mostly based on empirical methods. The estimation method usually draws on earlier products or similar products, and compares similar functional modules or structures to predict the maintenance time by analogy. The estimation process is more dependent on the data of similar products. It is difficult to reflect the detailed information and maintenance operation process of the newly developed products in ...

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Application Information

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IPC IPC(8): G06Q10/00G06Q10/06
CPCG06Q10/0639G06Q10/20
Inventor 王维黄敏张威耿杰吕川冯维佳
Owner BEIHANG UNIV
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