Multi-objective Optimization Of The Vibration Absorber With Simple Cell Mapping Algorithm

The dynamics vibration absorber(DVA)in industrial production,including aircraft landing gear,automobile suspension system and high rise building.During the designing of the vibration absorber for the main system,the stress of the input,the effect of the absorber and the consumption of the control energy should be taken into consideration.In this paper,the simple cell mapping(SCM)method is used to solve the muti-objective optimization problem(MOP)of the vibration absorber for the aircraft landing gear,the automobile suspension system and the high rise building.A twodegree of freedom linear system is composed in this paper.The MOP of vibration absorber for different use are defined.The simple cell mapping(SCM)method is used to do the global searching in the designing space of the MOP to find the optimal solutions.The DVA is used to protect the primary structure during its vibration.In view of the former researchers’ work and conclusions,the MOP of the DVA under different excitations are defined.For the high rise building under different excitation,namely wind and earthquake wave,two different means of designing and asmbling of DVA is promosed.The MOP for each working condition is defined.For the aircraft landing gear and the automobile suspension system,in order to match the real working condition,the road roughness is defined as the random excitation.SCM is used to find the Pareto set and Pareto front for MOP in this paper.By comparing the power spectral density function of primary system with and without optimization,the stability of the SCM to solve the dynamical problems is proved.