Research On A Case-Based Assistant Decision System For Civil Aircraft Maintenance Review Board Report

The maintenance review board report which is authorized by the authority is revised as the lowest maintenance/inspection standard for a certain kind of transportation aircraft and engines, and is the basement or framework for the operator to develop its mainte-nance project. The research of Civil Aircraft maintenance review board report assistance decision-making system Based on CBR can provide information on assistant decision for the Civil Aircraft maintenance review board report revise staff to improve the efficiency and intelligent level of the revising.At first this thesis researches the maintenance task assistance revising method based on CBR,which is the core problem of this thesis, and the theoretical direction and the core arithmetic method of the assistant Decision System for Maintenance Review Board Re-port system come from it. First the chapter two introduces maintenance task type and CBR method in summary. Then introduces the method of maintenance task decision and character-type field matching technology. Then gives a fuzziness method of group deci-sion-making to decide attribution power. At last establish the model of the landing gear module in ATA chapter 32, and the results show good by taking examples for these mod-els.After that, this thesis researches achieve method of maintenance review board report casebank and reliability casebank. First introduces the method of collection and ar-rangement of case data. Then introduces the key technology of casebank achievement, the achievement and update method of data dictionary. At last introduces the design and structure of casebank.And analysis data quality problem in casebank, and account for the importance of data cleaning, and expound the theorem of data cleaning, and at last establish two methods of data cleaning.At last develop the software of Civil Aircraft maintenance review board report assis-tance decision-making system on the base of researches above. In this part, introduce software requirement, function, structure, database design and interface design.