Object-oriented models for aero-engine assembly

Wang, Chengen; Yu, Hong; Zhang, Wenlei

doi:10.1504/ijims.2010.033943

Cited by 3 publications

(3 citation statements)

References 14 publications

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“…In brief, in order to generate expert knowledge to guide assembly operations, it is necessary to build an assembly information model that can integrate information from the CAD model and the assembly process. Currently, there are several approaches to model assembly process information, including objectoriented model (Wang et al 2010), XML-based model (Bao et al 2013), Petri network-based model (Yang, Han, and Pan 2014), and ontology-based model (Sayed and Lohse 2014). Specifically, the object-oriented model is difficult to handle the information interaction between heterogeneous systems.…”

Section: Introductionmentioning

confidence: 99%

KGAssembly: Knowledge graph-driven assembly process generation and evaluation for complex components

Zhou

Bao

Chen

et al. 2021

International Journal of Computer Integrated Manufacturing

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The semantic information of process documents for the assembly of complex components plays an important role in the guidance of assembly operations and the feasibility evaluation of process plans. There are many types of semantic elements contained in assembly process documents. The semantic relationship between assembly elements is complex. Additionally, there is a lack of effective modeling method to deal with the implicit associative semantic knowledge that exists among existing assembly process cases. In this case, it is a great challenge to use the professional knowledge in assembly process documents to guide the intelligent decision-making of assembly process planning and the intelligent analysis of assembly process enforceability evaluation. In this paper, a knowledge graph-driven assembly process generation and evaluation method for complex components is proposed. An APKG (assembly process knowledge graph) model is built. A distributed graph embedding-based model SKGCN (sequence knowledge graph convolutional network) is designed to generate assembly process planning. Furthermore, model and knowledge dual-driven evaluation method for assembly sequences is presented. It provides assembly expert knowledge support for the evaluation method of interference detection of assembly sequence based on point cloud assembly feature recognition. Finally, the approach is evaluated by assembling an aeroengine compressor rotor.

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Section: Introductionmentioning

confidence: 99%

KGAssembly: Knowledge graph-driven assembly process generation and evaluation for complex components

Zhou

Bao

Chen

et al. 2021

International Journal of Computer Integrated Manufacturing

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“…Fifty-six percent of the A-level failures in F100, F110, F404, AL31F, and other third-generation fighters occurred as a result od vibration. The rotor is the core component of an aeroengine, and it is also the key source of vibration for the engine [3,4]. Among them, owing to the uneven material of the rotor itself and the asymmetry of the structure, the unbalanced excitation force generated by the rotor centroid shifting the axis of rotation after assembly is an important reason for the vibration of the aero engine [5].…”

Section: Introductionmentioning

confidence: 99%

Research on Vibration Suppression Method Based on Coaxial Stacking Measurement

Sun

Chen

et al. 2021

Mathematics

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A dynamic analysis model of the unbalanced vibration response of a single-rotor system is established to study the corresponding mechanism of the unbalanced excitation force and vibration response caused by the deviation of the rotor mass centroid in this paper, and finally to achieve the combined rotor vibration suppression. First, the installation of multi-stage rotors during vibration was studied, and the rotor mass centroid transfer model in the rotating coordinate system was established to obtain the unbalanced excitation force vectors of the rotors at all levels based on the traditional stacking assembly method and axiality measurement. Second, the rotor unbalance excitation force vectors were substituted at all levels to establish the finite element analysis model of the single-rotor system. Finally, a simulation analysis was carried out for the stacking assembly of the three-stage rotor, and the rotor test piece was used for the vibration experiment. The results show that the optimal assembly phase of the multi-stage rotor obtained by the dynamic analysis model of the unbalanced vibration response of the single-rotor system can effectively suppress the vibration of the combined rotor.

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“…Aero-Engine assembly process is the turnover flow program that parts, components, big components, unit bodies, and accessories form an engine, which includes the formulation of the Process scheme, the planning of the process, etc . [1] . The traditional engine assembly process design mainly depends on the process engineer's technical level, experience, and understanding of the engine's two-dimensional drawings and other data.…”

Section: Introductionmentioning

confidence: 99%

Research on Application of Engine Assembly Process Design Based on Assembly Simulation Technology

Liu¹,

Liu²,

Zhao³

et al. 2018

dtcse

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This paper summarized the problems existing in the traditional assembly process design, and analyzed the advantages and applications of assembly simulation technology. In order to address the real issues of aero-engine production, a novel assembly process applied to assembly simulation platform was established by the combination of the professional knowledge of Aero-Engine Assembly and assembly simulation technology. The convenience for aero-engine assembly process design was brought by the key technologies in flow of three-dimensional process planning, interference checking, ergonomics simulation, working state analysis, simulation Video and interactive Graphical with examples of assembly simulation technology application introducing. The conclusion that the success rate of assembly process design will be greatly improved and the assembly operators can be provided efficient assembly guidance when the assembly simulation technology used to engine assembly process design in the simulation platform, was proved with examples of engine assembly engineering.

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Object-oriented models for aero-engine assembly

Cited by 3 publications

References 14 publications

KGAssembly: Knowledge graph-driven assembly process generation and evaluation for complex components

KGAssembly: Knowledge graph-driven assembly process generation and evaluation for complex components

Research on Vibration Suppression Method Based on Coaxial Stacking Measurement

Research on Application of Engine Assembly Process Design Based on Assembly Simulation Technology

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