Hierarchical lattice stiffened cylindrical shell: Design, high-order vibration theory and composite parameter identification

被引：1
|
作者：
Zhang, Lu [1 ,2 ]
He, Weiping [3 ]
Zhu, Shiyang [3 ]
Lai, Changliang [1 ]
Tao, Yanming [1 ]
Zhu, Hengyi [1 ]
Li, Ming [1 ]
Fan, Hualin [1 ,2 ]
机构：
[1] Nanjing Univ Aeronaut & Astronaut, Res Ctr Lightweight Struct & Intelligent Mfg, Nanjing 210016, Peoples R China
[2] Guilin Univ Elect Technol, Inst Adv Equipment & Struct Technol, Guilin 541004, Peoples R China
[3] Wuhan Second Ship Design & Res Inst, Wuhan 430000, Peoples R China
来源：
COMPOSITE STRUCTURES | 2024年 / 328卷
基金：
中国国家自然科学基金;
关键词：
Hierarchical stiffened cylinder; Vibration theory; Parameter identification; GLOBAL BUCKLING ANALYSIS; BEHAVIOR;
D O I：
10.1016/j.compstruct.2023.117725
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
A carbon fiber reinforced hierarchical lattice stiffened cylindrical shell (HLSCS) was designed and manufactured. Introducing effects of bending and coupling stiffness caused by neutral plane offsetting, an improved smeared stiffener method was proposed to homogenize the HLSCS to an anisotropic continuous cylindrical shell with varying-stiffness. The transverse shear stiffness was predicted by the higher-order shear deformation theory to build a high order vibration theory. Composite parameter identification method of the HLSCS was proposed based on the experimental and theoretical results to identify the composite parameters nondestructively. The method suggests discounted fiber volume fraction and stiffness for the completed HLSCS.
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页数：10
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