The aero-engine assembly is the terminal and crucial stage in its manufacturing process

characterized by intensive technology

funds and high-quality labor. Assembly simulation provides the important measures to improve manufacturing accuracy

production efficiency and quality level. However

the traditional geometric-level assembly simulation based on design model encountered limitations more and more. Associating the numerous on-site process decision requirement and the development prospective of intelligent assembly production line driven by big data

it is very important and urgent to develop both the physical modeling and simulation upon: from the micro-scale contact of assembled surface to the complex assembling deformation prediction

and the systematic modeling and simulation upon the big data correlation analysis between manufacture and engine performance. This paper makes preliminary analysis and prospect on key technology issues and development of aero-engine assembly simulation

and provides some suggestions.