舰船机械振动噪声监测预报系统设计

以舰船机械噪声的监测预报为目的，依据舰船模型结构振动传递特性的试验分析，提出噪声预报的模型与方法。再利用虚拟仪器开发工具LabVIEW，进行舰船机械噪声监测预报系统的软、硬件设计。依据舰船机舱中的各种主、辅机的实测振动数据，得到船体表面各个虚拟传感器以及有限数量的实际传感器的振动响应数据，实现舰船机械噪声的连续监测与预报，并能针对机械噪声的异常情况或声学故障进行提示与报警。

Virtual Design of Monitoring and Forecasting System of Warship's Underwater Noise

The model and method for monitoring and forecasting the underwater noise induced by the warship itself is proposed on the base of experimental analysis of the vibration transmission law of the warship＇s model. Using software LabVIEW, the software and hardware of the monitoring and forecasting system are designed. According to the measured data of the diesel engine and the auxiliary machineries in the ship＇s power cabin, the response data of the virtual transducers and real transducers attached to the surface of the ship＇s body is simulated. The successive monitoring and forecasting of the underwater noises are realized. And the abnormal machinery noises can also be identified and alarmed.