Condensational modelling and experimental analysis for vibration of multilayer hull section

被引:0
|
作者
Gan, Quan [1 ]
Chen, Yuehua [1 ]
Yan, Bin [2 ]
Zheng, Jiahui [1 ]
Niu, Yanhui [1 ]
机构
[1] Ningbo Univ, Fac Maritime & Transportat, Ningbo 315000, Peoples R China
[2] China Ship Sci Res Ctr, Wuxi 214000, Peoples R China
关键词
Vibration characteristics; Multilayer hull section; Condensational modelling; Experimental investigation; FINITE-ELEMENT-METHOD; ENERGY-FLOW-ANALYSIS; MINDLIN PLATES; BUILT-UP; TRANSMISSION; WAVE; BOUNDARY; SYSTEM; BEAM;
D O I
10.1016/j.tws.2024.112733
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
A vibrational modeling approach for the free and forced vibration analysis of multilayer hull section structures with intermediate supports has been introduced, complemented by experimental investigations into the free vibration characteristics of ship hulls. To address the issue of excessively large matrix dimensions in solving large and complex coupled structures, a condensation model is employed to construct the multilayer hull section, and the collocation method is engaged for the coupled solution. To validate the convergence and accuracy of existing methods, comparisons have been made between the natural frequencies, modal shapes, and dynamic responses of the coupled structures with finite element results, and experimental tests have been conducted. The results are found to be effective and accurate, with the modeling process being more straightforward and efficient. Furthermore, the effect of the number of internal decks (layers) and partitioned plates on the structural free vibration characteristics has been studied. It is observed that both the addition of internal decks and the introduction of vertical partitioned plates significantly alter the self-vibration characteristics of the entire hull section, but the first two modal shapes of the hull section remain largely unchanged. Notably, the natural frequency of the hull initially increases and then decreases when internal decks are suddenly added; the low order modes appear on the lower plates not directly connected to the partitioned plates when vertical partitioned plates are suddenly introduced. The method allows for the arbitrary modification of the number and position of decks and partitioned plates, akin to altering material properties. The findings indicate that the presented method can be readily extended to address the vibration issues of hull section structures of arbitrary complex geometries and composite material hull section structures.
引用
收藏
页数:17
相关论文
共 50 条
  • [21] Experimental Modelling and Amplitude-Frequency Response Analysis of a Piecewise Linear Vibration System
    Sun, Yixia
    IEEE ACCESS, 2021, 9 : 4279 - 4290
  • [22] Experimental analysis of an air cavity concept applied on a ship hull to improve the hull resistance
    Butterworth, Jamie
    Atlar, Mehmet
    Shi, Weichao
    OCEAN ENGINEERING, 2015, 110 : 2 - 10
  • [23] Vibration and squeal of a disc brake: modelling and experimental results
    Ouyang, H
    Cao, Q
    Mottershead, JE
    Treyde, T
    PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART D-JOURNAL OF AUTOMOBILE ENGINEERING, 2003, 217 (D10) : 867 - 875
  • [24] Vibration analysis of the rotating multilayer piezoelectric Timoshenko nanobeam
    Mohammadi, M.
    Farajpour, A.
    Moradi, A.
    Hosseini, M.
    ENGINEERING ANALYSIS WITH BOUNDARY ELEMENTS, 2022, 145 : 117 - 131
  • [25] ANALYSIS OF DEFORMATION DISTRIBUTION OF DIFFERENT POINTS OF HULL CROSS-SECTION
    NASSEF, I
    JOURNAL OF SHIP RESEARCH, 1989, 33 (03): : 157 - 161
  • [26] VIBRATION ANALYSIS OF AN UNDERWATER BEAM WITH CIRCULAR SECTION
    KAWATATE, K
    JOURNAL OF SOUND AND VIBRATION, 1978, 59 (01) : 147 - 149
  • [27] Vibration Analysis and Simulation of Mast Section of Hoist
    Luo, Jiman
    Jiang, Yang
    Xing, Zhihui
    METALLURGY TECHNOLOGY AND MATERIALS, 2012, 567 : 3 - 9
  • [28] Analytical analysis of the vibration of propulsion shaft under hull deformation excitations
    Zhang, Cong
    Tian, Zhe
    Yan, Xinping
    JOURNAL OF VIBROENGINEERING, 2016, 18 (01) : 44 - 55
  • [29] Experimental investigation of the thermally induced vibration of a space boom section
    Su XinMing
    Zhang JunHui
    Wang Jing
    Bi YanQiang
    Qie DianFu
    Xiang ZhiHai
    Xue MingDe
    SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY, 2015, 58 (04) : 1 - 9
  • [30] Experimental investigation of the thermally induced vibration of a space boom section
    XinMing Su
    JunHui Zhang
    Jing Wang
    YanQiang Bi
    DianFu Qie
    ZhiHai Xiang
    MingDe Xue
    Science China Physics, Mechanics & Astronomy, 2015, 58 : 1 - 9