Abstract: During the development of a certain type of refrigerator, the deformation problem of the bottom beam of the package drop test has been unable to be effectively solved. By simulating the drop technology and simulating the test process, it is found that the structure strength and packaging structure of the bare refrigerator are a pair of contradictions. The bottom beam of this refrigerator has long span and poor impact resistance. It is difficult to solve the deformation problem of the bottom beam simply by optimizing the packaging structure. By optimizing the bottom beam and packaging structure, the plastic deformation of the bottom beam is reduced from 0.7% to 0.13% the reduction rate is 78.6% which is 0.4% lower than the reference equivalent plastic strain. The deformation problem of the bottom beam of this type of refrigerator is effectively solved.

Key words: Bottom beam deformation, Drop simulation, Structural optimization