阻抗分析法在船舶结构动力响应分析中的应用研究
发布时间：2018-12-15 13:36
【摘要】：针对设备动力参数未知,设备基座振动加速度给定情况,提出阻抗分析法解决设备振动激励载荷下的船舶结构动力分析问题。基于理论分析,提出阻抗分析法,实现设备对基座的振动能量采取振动加速度激励作为输入,进而分析结构动力响应;通过舱段结构动力分析验证方法的有效性,并讨论不同加载方式对结构动力响应的影响规律,研究表明,该方法应用于结构声振分析是可行的,且加载方式对结构响应影响较大;在此基础上,将阻抗分析法应用于水下航行器水下声辐射研究,分析水下航行器声场周向分布规律。结果表明激励频率较低时水下航行器水下声场呈对称分布,随着频率提高,其对称性逐渐下降。
[Abstract]:In view of the unknown dynamic parameters of the equipment and the given vibration acceleration of the equipment base, the impedance analysis method is proposed to solve the dynamic analysis problem of the ship structure under the vibration excitation load of the equipment. Based on the theoretical analysis, the impedance analysis method is proposed to realize that the vibration acceleration excitation is used as input to the vibration energy of the base, and then the dynamic response of the structure is analyzed. The validity of the method is verified by the dynamic analysis of the cabin structure, and the influence of different loading modes on the dynamic response of the structure is discussed. The results show that the method is feasible for the acoustic vibration analysis of the structure. The loading mode has a great influence on the structure response. On this basis, the impedance analysis method is applied to the underwater acoustic radiation research of underwater vehicle, and the circumferential distribution rule of underwater vehicle sound field is analyzed. The results show that the underwater acoustic field of the underwater vehicle exhibits symmetrical distribution when the excitation frequency is low, and the symmetry decreases gradually with the increase of the frequency.
【作者单位】： 哈尔滨工程大学船舶工程学院;中国人民解放军92857部队;
【基金】：国家自然科学基金项目(51209052) 黑龙江省青年科学基金资助项目(QC2011C013) 上海交通大学海洋工程国家重点实验室基金(1307) 工信部高技术船舶项目 中央高校基本科研业务费资助项目(HEUCF140117) 国防预研项目(4010403010103) 中国博士后基金(2014M552661)
【分类号】：U661.4
，
本文编号：2380748
[Abstract]:In view of the unknown dynamic parameters of the equipment and the given vibration acceleration of the equipment base, the impedance analysis method is proposed to solve the dynamic analysis problem of the ship structure under the vibration excitation load of the equipment. Based on the theoretical analysis, the impedance analysis method is proposed to realize that the vibration acceleration excitation is used as input to the vibration energy of the base, and then the dynamic response of the structure is analyzed. The validity of the method is verified by the dynamic analysis of the cabin structure, and the influence of different loading modes on the dynamic response of the structure is discussed. The results show that the method is feasible for the acoustic vibration analysis of the structure. The loading mode has a great influence on the structure response. On this basis, the impedance analysis method is applied to the underwater acoustic radiation research of underwater vehicle, and the circumferential distribution rule of underwater vehicle sound field is analyzed. The results show that the underwater acoustic field of the underwater vehicle exhibits symmetrical distribution when the excitation frequency is low, and the symmetry decreases gradually with the increase of the frequency.
【作者单位】： 哈尔滨工程大学船舶工程学院;中国人民解放军92857部队;
【基金】：国家自然科学基金项目(51209052) 黑龙江省青年科学基金资助项目(QC2011C013) 上海交通大学海洋工程国家重点实验室基金(1307) 工信部高技术船舶项目 中央高校基本科研业务费资助项目(HEUCF140117) 国防预研项目(4010403010103) 中国博士后基金(2014M552661)
【分类号】：U661.4
，
本文编号：2380748
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