响应传导函数在船舶机械噪声预报中的应用及实验验证

周军伟;何琳;徐荣武;崔立林;

振动与冲击 ›› 2014, Vol. 33 ›› Issue (22) : 78-82.

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PDF(1513 KB)
振动与冲击 ›› 2014, Vol. 33 ›› Issue (22) : 78-82.
论文

响应传导函数在船舶机械噪声预报中的应用及实验验证

  • 周军伟1,2,何琳1,2,徐荣武1,2,崔立林1,2
作者信息 +

The Practical Application and Experimental Verification of Transmissibility Function in Ship Mechanical Noise Prediction

  • ZHOU Jun-wei1,2, HE Lin1,2, XU Rong-wu1,2, CUI Li-lin1,2
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摘要

根据线性时不变系统自身具备的响应传导特性,将力-响应的传递函数模型转化为响应-响应的传导函数模型用于船舶机械噪声预报。从理论上推导了传导函数法用于响应预报的约束条件,分析了其应用于船舶机械噪声实时预报的可行性。给出传导函数的求解方法—工况联合法,并对其应用条件进行了分析论证。双层圆柱壳体模型试验结果表明传导函数法应用于近场和远场机械噪声预报时均具有较高的精确度。

Abstract

The traditional response estimation model is based on force-response relationship. According to the transmissibility concept in linear time invariant system, a new response estimation method-transmissibility function (TF) method is provided based on response-response relationship. First, the principle of the method is interpreted in mathematic formula and the restriction condition is presented. Then, an engineering technique called operational conditions combination is presented for calculating the transmissibility function (TF) of vibration responses, and the guideline on how to devise the scheme of working conditions is discussed. Finally, the performance of the developed transmissibility function method is validated by a cylindrical double-shell exciting experiment.

关键词

机械噪声 / 实时预报 / 频响函数 / 传导函数 / 激励源 / 工况联合

Key words

mechanical noise / real-time prediction / frequency response function (FRF) / transmissibility function (TF) / exciting force / operational conditions combination

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导出引用
周军伟;何琳;徐荣武;崔立林;. 响应传导函数在船舶机械噪声预报中的应用及实验验证[J]. 振动与冲击, 2014, 33(22): 78-82
ZHOU Jun-wei;HE Lin;XU Rong-wu;CUI Li-lin;. The Practical Application and Experimental Verification of Transmissibility Function in Ship Mechanical Noise Prediction[J]. Journal of Vibration and Shock, 2014, 33(22): 78-82

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