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Research on Key Technology for Digital Assembly Based on Aero-engine

Author: XuYanFeng
Tutor: YangHaiCheng
School: Northwestern Polytechnical University
Course: Aviation Aerospace Manufacturing Engineering
Keywords: Aircraft engine Assembly digitized OpenGL Resume Matching Parts
CLC: V263
Type: Master's thesis
Year: 2006
Downloads: 401
Quote: 7
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Abstract


The assembly is the last link in the manufacturing process, but also one of the most important manufacturing sectors. Have an important impact in the existing aero engine design and processing technology level conditions, the quality and efficiency of the assembly for the quality, performance and production efficiency of the engine. Aero-engine assembly work is done by hand, the level of accuracy and stability of the assembly or not depends on the skill level of the assembly workers and operating experience. A number of aviation engine parts, model specifications similar to the complexity of the assembly process, the wrong equipment, drain installation phenomena have occurred, seriously affecting the quality and efficiency of the assembly. In this paper, for the study of aero-engine, for the purpose of the assembly process to guide and manage assembly digitization of certain key technologies aimed at improving the quality and efficiency of the aero-engine assembly assembly digitized system. The main contents of this paper include: drawback for assembly workers assembled according to the assembly process specification paper and two-dimensional assembly diagram intuitive the CAD environment information extraction methods and three-dimensional parts browsing technology from CAD software STL model of export parts and assembly sequence and path in OpenGL for display on the part model, to use OpenGL animation engine assembly process combined with multi-threaded, can visually guide the assembly workers for assembly. 2 for paper assembly is used in the enterprise resume management disadvantages not conducive, analysis of the structural characteristics of the assembly resume, the establishment of the data structure of the universal electronic form management assembly resume information into structured data, can be easily to query statistics, the electronic management of the assembly resume. 3, the lack of effective control of the status quo against the state of the assembly process of the implementation of the enterprise, will resume in the assembly process and assembly inspection information associated, as control of the assembly process node information to achieve quality control and progress control of the assembly process. 4 Part optional process, the design of the interface with the ERP software SAP, the pinion gear, the driven gear and the superstructure combination radial gap and end clearance, for example, the establishment of the mathematical model of the selective assembly to achieve a a matching algorithm based on genetic algorithm, can be an effective solution to the problem of selective assembly parts instance validation.

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CLC: > Aviation, aerospace > Aviation > Aeronautical Manufacturing Technology > Aero-engine manufacturing
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