为改善舰船电子机箱抗振动冲击性能，采用钢丝绳隔振器进行防护设计，安装方式为壁挂式。基于隔振器动态特性理论分析，对其进行振动冲击测试，得到隔振器固有频率、振动传递率、冲击隔离率等特性参数。结果表明，隔振器Z向、X向最大振动传递率小于3，20～60 Hz隔振区振动传递率分别小于0.5和0.71，Y向最大振动传递率大于3，42～60 Hz隔振区振动传递率大于0.67，Z向、X向隔振效果较好，Y向隔振效果较差。轻量级冲击机受到单向冲击激励时，不同方向上都有冲击响应，冲击波引起隔振器谐振，隔振器通过衰减4000～8000 Hz高频冲击能量来实现冲击隔离，冲击隔离率大于93.7%，缓冲性能优异。研究成果可为电子设备舰船环境振动冲击防护设计提供技术支撑。
In order to improve anti-vibration and anti-shock performance of ship electronic chassis, wire rope isolators were used for protective design, and the installation method was wall-mounted. Based on theoretical analysis of dynamic characteristics, vibration and shock test was carried out, and the characteristic parameters of isolators such as natural frequency, vibration transmissibility and shock isolation rate were obtained. The results show that the maximum vibration transmissibility in Z-direction and X-direction is less than 3, and the vibration transmissibility in the 20 to 60 Hz isolation area is less than 0.5 and 0.71, respectively. The maximum vibration transmissibility in Y-direction is greater than 3, and the vibration transmissibility in the 42 to 60 Hz isolation area is greater than 0.67. The vibration isolation efficiency in Z-direction and X-direction is good, and the vibration isolation efficiency in Y-direction is poor. When the lightweight shock machine is excited by unidirectional shock, there is a shock response in different directions, and the shock wave causes the isolators resonance. The isolators realize shock isolation by attenuating the high-frequency shock energy of 4000 to 8000 Hz. The shock isolation rate is greater than 93.7%, and buffer effect is excellent. The research provides technical support for protective design of electronic equipments under ship environment.
2025,47(7): 135-140 收稿日期：2024-6-11
DOI：10.3404/j.issn.1672-7649.2025.07.025
分类号：U661.44
基金项目：装备预研应用创新项目（62602010331）
作者简介：朱曾辉(1990-),男,硕士,高级工程师,研究方向为雷达减振降噪抗冲击设计
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