Abstract：Large aircraft assembly has such typical characters as multi-discipline, high precision, complex coordinate
supplier chain, heavy workload, etc. It takes the definitive role during the aircraft deliver cycle, quality and cost control.
Currently, most domestic aircraft manufacturers have adopted model-based definition and assembly simulation technologies,
but the business is still keeping the traditional design and manufacturing separated mode. The advanced digital assembly
engineering application system is not built. This article analyses the digital assembly adoption status in avia-tion
industry, proposes the integrated architecture of combing advanced business management, digital manufacturing engineering
design and assembly simulation & validation. Then key technologies are demonstrated. Based on the architecture,
constructs the engineering application integration environment of assembly plan and simulation combined with advanced
management approaches. Final the application benefits of one large aircraft program are described.
2017, 
