Based On Numerical Simulation The Stress-strain Analysis And Structural Optimization Of The Refrigerator Door

First half of2011, Hisense Ronshen (Guangdong) Co., Ltd., emergingrefrigerator doing high and low temperature impact test occurs when the door coverbreaking phenomenon, the hidden quality problems or quality problems seriouslyaffected a number of new product development progress, but also the quality of ourproducts there is a big problem hidden. To ensure our products quality, they must benumerical simulation and optimize its structure design. Deformation has been plagueddoor refrigerator manufacturer problem is the deformation mechanism of the researchfocus of many researchers. Refrigerator door as a large volume of large temperaturedifference between inside and outside, especially the large difference between thetemperature difference between inside and outside the refrigerator freezer40degrees,often from the joint office door closed. This not only affects the appearance of therefrigerator, and hot air directly outside through cracks into the refrigeratorcompartment inside the box to increase the heat load, so that power consumptionincreases rapidly. And because indoor moisture increases in the box prone to frost,reducing cooling efficiency of the refrigerator, even more serious is the refrigeratorfresh food storage cannot play a role. Finite element method as a numerical simulationmethod, with the computer and software development has been widely used; it caneffectively solve complex engineering problems, including linear and nonlinearengineering problems.This paper uses the finite element software ABAQUS, the product-BCD268ofthe freezer door as the research object for the door cover cracking, deformation for thedoor to BD188, for example, the finite element method, including the door and coverthe numerical simulation, and analysis structures with local stress too much reason, acomparative analysis on the factors that may affect the stress size. Then for its reasons,we design the optimization of the structure corresponding to compare a variety ofdesign, and through theoretical analysis, numerical calculation, measurement of strain and stress physical prototype validation to select the most reasonable structure designto ensure that the door cover in the work environment will not damaged.