Iterative design of aircraft airframe components and assemblies

Abstract

The rationale for the purpose of this article is the need to reduce the weight of aircraft structures while increasing strength, as well as reducing the time spent on design. Weight reduction leads to an increase in the take-off weight of the aircraft, which has a positive effect on the efficiency of the aviation complex. This method consists in iterative modeling of loads acting on the structure in CAM programs. The iterative design method is applicable at all stages of the development of airframe units. It allows you to see the areas with the lowest and highest stresses. The underloaded parts of the structure are lightened, and the overloaded ones are strengthened. Thus, the refinement of geometric parameters is achieved, and it also becomes possible to optimize the cons.The iterative method makes it possible to reduce the design time of components and assemblies, to obtain a more perfect design in terms of mass and strength characteristics, as well as to automate the process of developing components and assemblies using hardware and software tools. The approaches proposed in this paper make it possible to create an electronic product layout that can be used throughout the entire product life cycle, which reduces the amount of human, material and financial resources used.