船舶典型结构损耗因子实验及应用
|
摘要
损耗因子是衡量系统阻尼特性并决定其振动能量耗散能力的重要参数,对船舶水下噪声预报分析具有重要影响。针对船舶结构特点,选取内底板、舱壁板和甲板等典型结构建立实验模型,基于瞬态衰减法,对船舶典型结构损耗因子进行测试,分析、掌握其特性规律。在此基础上,开展船舶典型结构损耗因子水下噪声预报应用研究,结果表明,损耗因子对船舶水下噪声预报具有较大影响,尤其高频段水下辐射噪声对损耗因子更为敏感,进行船舶水下噪声预报时需开展相关损耗因子测试。
Loss factor is an important parameter to measure the damping characteristics and determine its vibration energy dissipation capacity of a system. It has a significant influence on underwater noise prediction and analysis of ships. According to the characteristics of ship structure, select the ship typical structures of hull plate, side plate and hull deck as the experimental model, test the ship typical structure loss factor in the method of transient decay, analyze the loss factor characteristics of ship typical structure. Based on all above, carry out the research on the application of loss factor test results in ship underwater noise prediction.The results show that the loss factor has a great influence on ship underwater noise prediction, especially in high-frequency it is quite sensitive and it is necessary to carry out basic parameters test for ship underwater noise prediction.
Loss factor is an important parameter to measure the damping characteristics and determine its vibration energy dissipation capacity of a system. It has a significant influence on underwater noise prediction and analysis of ships. According to the characteristics of ship structure, select the ship typical structures of hull plate, side plate and hull deck as the experimental model, test the ship typical structure loss factor in the method of transient decay, analyze the loss factor characteristics of ship typical structure. Based on all above, carry out the research on the application of loss factor test results in ship underwater noise prediction.The results show that the loss factor has a great influence on ship underwater noise prediction, especially in high-frequency it is quite sensitive and it is necessary to carry out basic parameters test for ship underwater noise prediction.
引文
[1]孙雪荣,朱锡.船舶水下结构噪声的研究概况与趋势[J].振动与冲击,2005,24(1):106–113.Sun Xuerong,Zhu Xi.Survey and tendency of study on the underwater noise of ship structure[J].Journal of Vibration and Shock,2005,24(1):106–113.
[2]程广利,朱石坚,伍先俊.统计能量分析法及其损耗因子确定方法综述[J].船舶工程,2004,26(4):10–15.Cheng Guangli,Zhu Shijian,Wu Xianjun.A summary of statistical energy analysis method and its loss factor’s determination[J].Ship Engineering,2004,26(4):10–15.
[3]张志军,吴闯,庞福振,等.船舶典型结构构件损耗因子试验研究[J].传感器与微系统,2015,34(6):30–32,36.Zhang Zhijun,Wu Chuang,Pang Fuzhen,et al.Research on test of ship typical structure component loss factor[J].Transducer and Microsystem Technologies,2015,34(6):30–32,36.
[4]张红亮,孔宪仁,刘源,等.宽频域的内损耗因子实验辨识方法研究[J].振动与冲击,2013,32(12):179–184.Zhang Hongliang,Kong Xianren,Liu Yuan,et al.Test identification of damping loss factor in a wider frequency range[J].Journal of Vibration and Shock,2013,32(12):179–184.
[5]程广利,关成彬,胡生亮.基于Hilbert变换的结构内损耗因子测试研究[J].噪声与振动控制,2006,26(4):105–107.Cheng Guangli,Guan Chengbin,Hu Shengliang.Study on the measurement of structure’s internal loss factor based on Hilbert transform[J].Noise and Vibration Control,2006,26(4):105–107.
[6]Lyon R H,Maidanik G.Power flow between linearly coupled oscillators[J].Journal of the Acoustical Society of America,1962,34(5):623–639.
[7]顾金桃,盛美萍.稳态损耗因子的衰减法识别研究[J].物理学报,2015,64(18):339–346.Gu Jintao,Sheng Meiping.Estimation of steady loss factor with decay rate method[J].Acta Physica Sinica,2015,64(18):339–346.
[8]宁方华,张建.损耗因子测量的Hilbert变换法[J].山东工程学院学报,2002,16(1):17–20.Ning Fanghua,Zhang Jian.Hilbert transform in loss factor measurement[J].Journal of Shandong Institute of Technology,2002,16(1):17–20.
[9]付喜华.舰船加筋结构声辐射阻尼研究[D].大连:大连理工大学,2008.
[2]程广利,朱石坚,伍先俊.统计能量分析法及其损耗因子确定方法综述[J].船舶工程,2004,26(4):10–15.Cheng Guangli,Zhu Shijian,Wu Xianjun.A summary of statistical energy analysis method and its loss factor’s determination[J].Ship Engineering,2004,26(4):10–15.
[3]张志军,吴闯,庞福振,等.船舶典型结构构件损耗因子试验研究[J].传感器与微系统,2015,34(6):30–32,36.Zhang Zhijun,Wu Chuang,Pang Fuzhen,et al.Research on test of ship typical structure component loss factor[J].Transducer and Microsystem Technologies,2015,34(6):30–32,36.
[4]张红亮,孔宪仁,刘源,等.宽频域的内损耗因子实验辨识方法研究[J].振动与冲击,2013,32(12):179–184.Zhang Hongliang,Kong Xianren,Liu Yuan,et al.Test identification of damping loss factor in a wider frequency range[J].Journal of Vibration and Shock,2013,32(12):179–184.
[5]程广利,关成彬,胡生亮.基于Hilbert变换的结构内损耗因子测试研究[J].噪声与振动控制,2006,26(4):105–107.Cheng Guangli,Guan Chengbin,Hu Shengliang.Study on the measurement of structure’s internal loss factor based on Hilbert transform[J].Noise and Vibration Control,2006,26(4):105–107.
[6]Lyon R H,Maidanik G.Power flow between linearly coupled oscillators[J].Journal of the Acoustical Society of America,1962,34(5):623–639.
[7]顾金桃,盛美萍.稳态损耗因子的衰减法识别研究[J].物理学报,2015,64(18):339–346.Gu Jintao,Sheng Meiping.Estimation of steady loss factor with decay rate method[J].Acta Physica Sinica,2015,64(18):339–346.
[8]宁方华,张建.损耗因子测量的Hilbert变换法[J].山东工程学院学报,2002,16(1):17–20.Ning Fanghua,Zhang Jian.Hilbert transform in loss factor measurement[J].Journal of Shandong Institute of Technology,2002,16(1):17–20.
[9]付喜华.舰船加筋结构声辐射阻尼研究[D].大连:大连理工大学,2008.