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电子设备的抗振性能是影响其工作可靠性的重要因素之一。在振动的环境中,设备中一些抗振性能较差的部件容易发生破坏。例如,有关单位对电子设备通用机柜进行的振动试验表明,振动中插箱最先开始发生破坏,由于插箱的振动响应过大,造成箱板破裂、导轨变形等一系列严重后果。本文以不同边界条件下,带有集中质量的矩形平板为简化模型,从提高刚度及阻尼两个方向研究了改善插箱等主要由平板组成的部件抗振性能的措施。研究的
The anti-vibration performance of electronic equipment is one of the important factors affecting the reliability of its work. In a vibrating environment, some parts of the equipment that have poor anti-vibration properties are prone to damage. For example, the relevant units of general-purpose cabinet for electronic equipment vibration test showed that the first vibration cassette box began to break, due to the vibration response box is too large, resulting in broken box, rail deformation and a series of serious consequences. In this paper, a rectangular plate with a concentrated mass under different boundary conditions is taken as a simplified model. The measures to improve the anti-vibration performance of the main components composed of plates, such as the inserted box, are studied from the aspects of improving the stiffness and damping. Research