An effective method of optimizing cabin structure of nose-landing gear system based on geometrical stiffness distribution

In this paper, the geometrical stiffness distribution of cabin structure of a certain type of nose-landing gear is optimized under low-order frequency restriction conditions. Sections 1 through 4 of the full paper explain and evaluate our optimization method mentioned in the title, which we believe is effective and whose core consists of: (1) the finite element model of nose-landing gear structure is established; (2) considering the low order frequency properties of the structure, we optimize the structure geometry stiffness distribution, where the optimization parameters and objective are chosen to be component geometrical parameters and minimum structure weight respectively; (3) section 4 presents Tables 1 and 2 and their analysis, thus showing preliminarily that the dynamics behavior of cabin structure is indeed effectively enhanced as well as the minimum structure weight and comparable load carrying capability.