Volume 17 Issue 2
Apr.  2022
Turn off MathJax
Article Contents
PENG C G, ZHANG S Y, ZHANG G J. Study on acoustic vibration similarity law of complex stiffened cone-cylinder combined shell[J]. Chinese Journal of Ship Research, 2022, 17(2): 165–172 doi: 10.19693/j.issn.1673-3185.02232
Citation: PENG C G, ZHANG S Y, ZHANG G J. Study on acoustic vibration similarity law of complex stiffened cone-cylinder combined shell[J]. Chinese Journal of Ship Research, 2022, 17(2): 165–172 doi: 10.19693/j.issn.1673-3185.02232

Study on acoustic vibration similarity law of complex stiffened cone-cylinder combined shell

doi: 10.19693/j.issn.1673-3185.02232
  • Received Date: 2020-12-21
  • Rev Recd Date: 2021-03-07
  • Available Online: 2022-04-05
  • Publish Date: 2022-04-20
    © 2022 The Authors. Published by Editorial Office of Chinese Journal of Ship Research. Creative Commons License
    This is an Open Access article distributed under the terms of the Creative Commons Attribution 4.0 International License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
  •   Objective  Due to the difficulty of accurately converting the experimental results of acoustic radiation and vibration from scale models of complex stiffened combined shells into prototypes, the acoustic vibration similarity laws of this type of combined shell are studied in order to provide a basis for scale model experimental research on the acoustic vibration of such underwater structures.   Method  First, a complex stiffened cone-cylinder combined shell model and its scale model are constructed by shell element reinforcement simulation. Next, based on the hybrid finite element method-boundary element method (FEM-BEM) method, the acoustic vibration response of the combined shell is calculated. Combined with the model experiment, the accuracy of the calculated response of the complex shell structure using the hybrid FEM-BEM method is then verified. Finally, the acoustic vibration similarity laws of the complex stiffened cone-cylinder combined shell are studied systematically.   Results  The vibration modal frequency of the complex combined shell is in inverse proportion to the geometric scale ratio with the model under the same material parameter boundary conditions and excitation force, while the vibration modal in the corresponding frequency is the same. Under conditions of the same excitation force, the vibration response of the combined shell is also in inverse proportion to the geometric scale ratio, whereas the acoustic pressure is in inverse proportion to the product of the geometric scale ratio and measurement distance of the shell. The radiation efficiency and acoustic directivity of the scale model and prototype are the same.   Conclusion  The stiffened cone-cylinder combined shell shows good acoustic and vibration similarity under similar conditions to those of the model, and the model constructed using shell element reinforcement simulation is more consistent with the experimental results.
  • loading
  • [1]
    董晓明. 新一代水面舰艇作战系统发展理念及途径[J]. 中国舰船研究, 2015, 10(1): 1–6. doi: 10.3969/j.issn.1673-3185.2015.01.001

    DONG X M. Development concepts and approaches of the next generation combat system for surface combatant ships[J]. Chinese Journal of Ship Research, 2015, 10(1): 1–6 (in Chinese). doi: 10.3969/j.issn.1673-3185.2015.01.001
    [2]
    李瀚钦, 方斌. 水下结构振动与声辐射相似机理综述[C]//第十届武汉地区船舶与海洋工程研究生学术论坛论文集. 武汉: 武汉理工大学, 2017: 10.

    LI H Q, FANG B. A summary of the similar mechanism of vibration and acoustic radiation of underwater structures[C]// Proceedings of the 10th Wuhan Academic Forum on Ship and Ocean Engineering. Wuhan: Wuhan University of Technology, 2017: 10 (in Chinese).
    [3]
    COUTINHO C P, BAPTISTA A J, RODRIGES J D. Modular approach to structural similitude[J]. International Journal of Mechanical Sciences, 2018, 135: 294–312. doi: 10.1016/j.ijmecsci.2017.11.005
    [4]
    BALAWI S, SHAHID O, MULLA M A. Similitude and scaling laws-static and dynamic behaviour beams and plates[J]. Procedia Engineering, 2015, 114: 330–337. doi: 10.1016/j.proeng.2015.08.076
    [5]
    俞孟萨, 吴永兴, 吕世金. 加肋圆柱壳声学相似性试验[J]. 中国造船, 2002, 43(2): 50–57. doi: 10.3969/j.issn.1000-4882.2002.02.008

    YU M S, WU Y X, LV S J. Experimental investigation on acoustic similarity of stiffened cylindrical shells[J]. Shipbuilding of China, 2002, 43(2): 50–57 (in Chinese). doi: 10.3969/j.issn.1000-4882.2002.02.008
    [6]
    白长玉. 相似理论在振动筛系列化设计中的应用[D]. 济南: 济南大学, 2015.

    BAI C Y. Application of similarity theory in vibrating screen series design[D]. Ji'nan: Ji'nan University, 2015 (in Chinese).
    [7]
    PETRONE G, MANFREDONIA M, DE ROSA S, et al. Structural similitudes of stiffened cylinders[J]. Mathematics and Mechanics of Solids, 2019, 24(3): 527–541. doi: 10.1177/1081286517745722
    [8]
    施傲, 路波, 杨党国, 等. 弹性空腔声振耦合试验相似动力学特性分析[J]. 航空动力学报, 2018, 33(11): 2611–2619.

    SHI A, LU B, YANG D G, et al. Analysis of similar dynamic characteristics of vibro-acoustic experiment for elastic cavity[J]. Journal of Aerospace Power, 2018, 33(11): 2611–2619 (in Chinese).
    [9]
    荣吉利, 范博超, 程修妍, 等. 火箭整流罩声振环境缩比特性研究[J]. 宇航学报, 2019, 40(8): 870–877. doi: 10.3873/j.issn.1000-1328.2019.08.003

    RONG J L, FAN B C, CHENG X Y, et al. Research on scaling characteristics of sound-vibration environment of rocket fairing[J]. Journal of Astronautics, 2019, 40(8): 870–877 (in Chinese). doi: 10.3873/j.issn.1000-1328.2019.08.003
    [10]
    杨德森, 王三德, 时胜国, 等. 水下复杂壳体的声学相似性研究[J]. 哈尔滨工程大学学报, 2005, 26(2): 174–178, 183. doi: 10.3969/j.issn.1006-7043.2005.02.008

    YANG D S, WANG S D, SHI S G, et al. Study of acoustical similitude of a submerged complex shell[J]. Journal of Harbin Engineering University, 2005, 26(2): 174–178, 183 (in Chinese). doi: 10.3969/j.issn.1006-7043.2005.02.008
  • ZG2232_en.pdf
  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索

    Figures(8)  / Tables(3)

    Article Metrics

    Article Views(494) PDF Downloads(56) Cited by()
    Proportional views
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return