| The paper described the building process of model that can identify the shock-absorber parameter of landing gear and at the same times optimize performance of system. In this paper, there are also some debate, it include identifying parameter which can not be measured, such as the air polytropic exponent and the orifice discharge coefficient of shock-absorber. By analyzing the landing gear system's dynamics model and shock-absorber model that author build, the landing gear's dynamics equation, kinematics equation and force balance equation are built, the factors that will influence the shock-absorber performance of landing gear are also debated. Finally a design method that can analyze and optimize the shock-absorber performance of landing gear is given to us, by this way the parameter identification of shock-absorber with load and capability optimization of landing gear's system are integrated. In the end, this design method is used on practice work, by application, it proves availability and success. |
