摘要
以计算多体动力学理论为指导,以水下爆炸试验时高速摄像机光测手段的应用为背景,设计了高速摄像机的抗冲隔振系统,建立了高速摄像机抗冲隔振系统的多体动力学模型;建模过程引入缩比模型试验数据,提高了模型的可靠性。基于该模型,分析了水下爆炸冲击因子为0.4时抗冲隔振系统的动态特性,结果表明抗冲隔振系统具有良好的缓冲效果,满足高速摄像机的抗冲击指标,通过试验验证了抗冲隔振系统设计的正确性。其中抗冲隔振系统的设计、建模、校核及分析方法不失一般性,可应用于其它电子设备。
With the instruction of the computational multi-body dynamics theory,taking optical measurement application in high-speed camera under underwater explosion tests as the background,the anti-shock and vibration isolation system of the high-speed camera was designed,then the multi-body dynamic model for the system was constructed. The reliability of the modeling process based on the scale model test data was improved. Based on the model,the dynamic characteristics of the system were analyzed under the underwater explosion test condition with the shock factor of 0. 4. The results showed that the designed system has a good buffering effect and the system meets the anti-shock requirements of the high-speed camera; the design correctness of the system is validated with tests; the design,modeling and analysis method here can be widely applied in other electronic equipments.
引文
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