Retraction and extension characteristic simulation of aircraft landing gear/hydraulic system

The hydraulic system of aircraft landing gear has the characteristics of great change of operating environment, more operatin g status and complex structure, while the traditional engineering method adopts experience to carry out parameter presetting an d test to adjust the parameter. So applying computer digital simulation technology to the design, improvement or development of aircraft hydraulic system can effectively improve the design efficiency and reduce the cost. In order to study the retraction and extension characteristics of landing gear/hydraulic system, a digital model of landing gear/hydraulic system is built bas ed on AMEsim simulation software. Compared with other models, it adopts a new load calculation method and simulation method, and can reflect the real component characteristics and pipeline characteristics in the model. Through the comparison of on-board data, it is proved that the model can be used as an important basis for the design and further study of landing gear/hydraulic system.