| The mechanical system of a turbofan engine plays an important role in the performance, reliability and life of the engine.
This paper introduces the level of the mechanical system in a turbofan engine hierarchy, the mechanical system architecture elements and
their evolution at home and abroad, summarizes the development of related technologies over the past 30 years, and proposes that the
development direction of the related technologies of the system is to build a deeply related system architecture, and with the guidance of
system architecture requirements, systematically coordinate the development in terms of design, materials, manufacturing, testing, etc. This
paper focuses on the analysis of the main gap between the related technologies of China and foreign countries, which is that the existing
system architecture elements are not closely related enough, and the capture of system requirements is incomplete, resulting in the
incomprehensive consideration of the design, material, manufacturing, and verification of components or systems, and the insufficient
progressiveness of some technologies. Suggestions are put forward for the development of turbofan engine mechanical system technology in
China, including optimizing the existing turbofan engine mechanical system architecture, systematically improving traditional mechanical
system technologies under the guidance of system requirements, and developing advanced technologies such as magnetic bearings.
Although deficiencies exist in system architecture rationality and technological advancement of China's turbofan engine mechanical system
technology compared with those from abroad, the abundance of domestic research efforts and the coordinated development under the guid?
ance of the overall planning formulated by relevant national authorities will enable China's turbofan engine mechanical system develop?
ment to reach the international advanced level soon. |