鱼雷楔环连接结构模态特性研究

王 升; 尹韶平; 王 中; 郭 君; 张志民

doi:10.11993/j.issn.2096-3920.2017.05.010

鱼雷楔环连接结构模态特性研究

doi: 10.11993/j.issn.2096-3920.2017.05.010

王升^1,2,
尹韶平¹,
王中^1,2,
郭君¹,
张志民¹

1.
中国船舶重工集团公司第705研究所, 陕西西安, 710077
2.
水下信息与控制重点实验室, 陕西西安, 710077

详细信息

作者简介:
王升(1992-), 男, 在读硕士, 主要研究方向为鱼雷总体技术.

中图分类号: TJ630.3; TP391.9
计量
- 文章访问数: 812
- HTML全文浏览量: 1
- PDF下载量: 490
- 被引次数: 0
出版历程
- 收稿日期: 2017-06-08
- 修回日期: 2017-07-14
- 刊出日期: 2017-12-20

Study on Modal Characteristic of Torpedo's Wedge-ring Connection Structure

1.
The 705 Research Institute, China Shipbuilding Industry Corporation, Xi′an 710077, China
2.
Science and Technology on Underwater Information and Control Laboratory, Xi′an 710077, China

摘要

摘要: 测试鱼雷全雷自由模态时, 存在楔环连接刚度对全雷各阶模态频率的影响程度不同的现象, 为了解其模态特性, 研究了其自由边界状态下的非线性特性, 并从模态灵敏度的角度分析了楔环连接结构的模态特性。通过有限元仿真计算和不同激励力下的自由模态试验发现, 随着激励力的增大, 鱼雷舱段壳体自由模态频率减小, 楔环连接结构的接触刚度变小, 具有非线性特性; 对于同一阶模态频率, 鱼雷舱段壳体模态频率对于楔环连接结构的刚度灵敏度越大, 楔环连接刚度的改变对于舱段壳体模态频率的影响就越大。该结果可为设计鱼雷壳体结构及其环境适应性提供参考。
- 鱼雷 /
- 楔环连接结构 /
- 模态仿真 /
- 非线性 /
- 模态试验 /
- 模态灵敏度
Abstract: To solve the problem that in the free modal test of whole torpedo, the wedge-ring connection stiffness imposes different influences on its modal frequencies, this paper studies the nonlinear characteristic in free boundary condition, and analyzes the modal characteristic based on modal sensitivity. Finite element simulation and free modal test under different exciting forces are conducted to reveal the modal characteristic. The result shows that with the increase of the exciting force, the torpedo cabin shell’s modal frequency and the contact stiffness of the wedge-ring connection structure decrease with obvious nonlinear characteristic; For the same order of modal frequency, the higher the sensitivity of modal frequency to connection stiffness is, the greater the influence of connection stiffness change on modal frequency becomes. This research may provide a reference for designs of torpedo′s shell structure and environmental adaptability.
- torpedo /
- wedge-ring connection structure /
- modal simulation /
- nonlinearity /
- modal test /
- modal sensitivity

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参考文献(10)

[1]	尹韶平, 刘瑞生. 鱼雷总体技术[M]. 北京: 国防工业出版社, 2011.
[2]	刘青林, 胡绍全, 徐有刚. 楔环连接结构动态特性的试验与分析[J]. 噪声与振动控制, 2011, 31(4): 42-45. Liu Qing-lin, Hu Shao-quan, Xu You-gang. Experimental Study on Dynamic Character of Ring-wedge Connection Structure[J]. Noise and Vibration Control, 2011, 31(4): 42-45.
[3]	刘青林, 胡绍全. 从模态参数变化研究楔形环连接结构的非线性[J]. 振动工程学报, 2004, 17(z2): 698-700. Liu Qing-lin, Hu Shao-quan. A Research on the Nonlinear Character of the Ringed-Wedge Connetion Structure by the Change of the Modal Parameters[J]. Journal of vibration Engineering, 2004, 17(z2): 698-700.
[4]	马锐磊, 尹韶平, 曹小娟, 等. 鱼雷楔环连接结构等效刚度建模与模态分析[J]. 舰船科学技术, 2014, 36(2): 143-147. Ma Rui-lei, Yin Shao-ping, Cao Xiao-juan, et al. Research on Finite Element Modeling and Modal Analysis of Torpedo’s Wedged-ring Connection Structure[J]. Ship Science and Technology, 2014, 36(2): 143-147.
[5]	赵荣国. 楔环连接结构静力接触行为与动力学特性研究[D]. 北京: 中国工程物理研究院, 2004.
[6]	方同, 薛璞. 振动理论及应用[M]. 西安: 西北工业大学出版社, 2010.
[7]	曹树谦, 张文德, 萧龙翔. 振动结构模态分析[M]. 天津: 天津出版社, 2014.
[8]	Friswell M I, Mottershead J E. Finite Element Model Updating in Structural Dynamics[M]. London: Kluwer Academic Publishers, 1995.
[9]	严海, 马锐磊, 梁跃, 等. 基于模态参数的水下航行器楔环结构有限元模型修正[J]. 鱼雷技术, 2016, 24(2): 87-93. Yan Hai, Ma Rui-lei, Liang Yue, et al. Finite Element Modal Correction for Wedge-ring connection Structure of Underwater Vehicle Based on Modal Parameters[J]. Torpedo Technology, 2016, 24(2): 87-93.
[10]	杨传武, 王安稳. 超空泡水下航行体振动特性分析[J]. 海军工程大学学报, 2008, 20(4): 30-32. Yang Chuan-wu, Wang An-wen. Vibration of Super-caviting Underwater Vehicles[J]. Journal of Naval University of Engineering, 2008, 20(4): 30-32.