Transient Impact Dynamics of Electronic Cabinet

doi:10.16183/j.cnki.jsjtu.2019.S1.020

Abstract

Abstract: A finite element model of a shipboard electric cabinet was established, and the vibration signals in different areas under the impact state were simulated by using the transient dynamic analysis method in Abaqus. The effect of the thickness of box bracket and stand columns on the impact response of cabinet was analyzed as well. The results show that the column, box, bracket and cover of the cabinet are sensitive areas of cabinet, and tend to generate high amplitude vibration. Since different areas of cabinet floor exhibit different responses to impact behavior, the vibration signals transmit to different parts of cabinet are different. As the height increases, the normal displacement and vibration intensity of box decrease gradually. The asymmetry of front and rear of cabinet system is the main reason for difference of vibration intensity between the different areas of cabinet top and front and rear columns. In addition, the thicknesses of bracket and column also have strong influence on the impact response of cabinet. The results can provide the theoretical basis for the reasonable design of impact resistance of cabinet structure.

Key words: cabinet; impact; finite element analysis; transient dynamic

CLC Number:

TP 391

WANG Dongwei,LIU Mingxing,WU Xiao,YANG Rui,DAI Jun’an. Transient Impact Dynamics of Electronic Cabinet[J]. Journal of Shanghai Jiaotong University, 2019, 53(Sup.1): 109-117.

References

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