Free-vibration Characteristics of Laminated Angle-ply Non-circular Cylindrical Shells

Defence Science Journal

K. N. Khatri¹  M. Ganapathi³  C. T. Sambandam⁴  B. P. Patel³  S. N. Giri²  S. S. Gupta³ 

[1] Directorate of Armament, DRDO HQrs, New Delhi;Centre for Military Airworthiness & Certification, Bangalore;Institute of Armament Technology, Pune;Centre for Airborne Systems, Bangalore

关键词: Laminated shell;    angle-ply;    free vibration;    non-circular;    modes;    finite element;    elliptical cross section;    higher-order shear deformation;   

DOI  :  

学科分类：社会科学、人文和艺术（综合）

来源: Defence Scientific Information & Documentation Centre

【 摘 要 】

This paper deals with the free-vibration behaviour of anisotropic laminated angle-ply noncircular cylindrical shells using finite element approach. The formulation is based on first-order shear deformation theory. The present model accounts for in-plane and rotary inertia effects. A detailed study has been carried out to highlight the effects of shell geometry, cross-sectional properties, lay-up and ply-angles on the natural frequencies of different types of modes of vibration of non-circular elliptical shell structures.

【 授权许可】

Unknown