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6609992 
Journal Article 
Clamping Analysis and Design of a Package of a Microwave Oven 
Lee, BY; 손병삼 
2009 
26 
3 
113-121 
KJD:ART001321149 
Behavior of a package of a microwave oven under the clamping condition is evaluated by testsand the finite element analyses. PAM-CRASH software is used for the finite element analyses.Results of the analyses are compared with those of the tests and accuracy is shown to befavorable. Under the clamping condition of the original design, severe deformation occurs and animproved design of the outer case and upper EPS(Expandable Poly Styrene) is proposed toreduce it. Face beads of the outer case are introduced and shape of the upper EPS is modified toreduce the deformation resulting from the clamping load. The improved design model is analyzedand its deformation is shown to be satisfactory. A prototype is produced according to theimproved design and tests are performed. Results of the clamping test of the prototype show thatthe plastic deformation is removed totally.