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The modeling method for vibration characteristics analysis of composite laminated rotationally stiffened shell.
Shi, Dong; Zhang, Hong; Ding, Yiqun; Yang, Changrun; Cheng, Tianlin.
Afiliación
  • Shi D; VMTT INDUSTRY CO., LTD, Chongqing, PR China.
  • Zhang H; College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, PR China.
  • Ding Y; Jiangsu Key Laboratory of Precision and Micro-Manufacturing Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, PR China.
  • Yang C; College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, PR China.
  • Cheng T; College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, PR China.
PLoS One ; 19(6): e0299586, 2024.
Article en En | MEDLINE | ID: mdl-38889193
ABSTRACT
The composite laminated rotationally stiffened shell is widely applied in aviation, aerospace, ship, machinery and other fields. To investigate the vibration characteristics of composite laminated rotationally stiffened shells with varying elastic boundary conditions, a modeling method of composite laminated rotationally stiffened shells is established. Firstly, the first-order shear deformation theory (FSDT) and the modified Fourier series method are effectively applied to establish the allowable displacement function of the composite laminated rotationally stiffened shell. Secondly, the energy function of composite laminated rotationally stiffened shell is established, and the simulation of complex elastic boundary and coupling boundary is realized by using artificial virtual spring technology. Thirdly, the Rayleigh-Ritz method is used to solve the energy function. Finally, the vibration characteristics of composite laminated rotationally stiffened shells are obtained and analyzed. In the analysis of numerical results, the fast and uniform convergence of analysis modeling and the accuracy of the calculated results are verified. On this basis, the effect of some important parameters such as thickness-to-radius ratio and length-to-radius ratio of shell, boundary spring stiffness values, cone apex angle, thickness and width of laminated beams, number of stiffeners on the vibration characteristics of composite laminated rotationally stiffened shell is studied. In theory, it makes up for the vibration characteristics analysis of composite laminated rotationally stiffened shells. In practical application, it guides the noise reduction design of related structures.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Vibración Idioma: En Revista: PLoS One Asunto de la revista: CIENCIA / MEDICINA Año: 2024 Tipo del documento: Article Pais de publicación: Estados Unidos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Vibración Idioma: En Revista: PLoS One Asunto de la revista: CIENCIA / MEDICINA Año: 2024 Tipo del documento: Article Pais de publicación: Estados Unidos