Journal ArticleDOI
Dynamic stability of rotating cantilever composite thin walled twisted plate with initial geometric imperfection under in-plane load
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TLDR
In this article, the critical buckling load and dynamic instability of the rotating cantilever cross ply laminate thin walled twisted plate with exponential function type initial geometric imperfection are investigated for the first time.Abstract:
The initial geometric imperfections in manufacturing structure are unavoidable. Critical buckling load and dynamic instability of the rotating cantilever cross ply laminate thin walled twisted plate with exponential function type initial geometric imperfection are investigated for the first time. The mode shapes are obtained by using Rayleigh-Ritz method and shallow shell theory including the influence of rotational speed and imperfection. Based on the Lagrange equations and the obtained mode shape function, motion equations considering the first three modes of the system are derived. The mode shapes, critical loads and dynamic instability obtained in present have been verified by comparing them with other researcher results. The detail studies about the effect of rotating speed, twisted angle, stacking sequence and imperfection factors of the rotating thin walled twisted plate subjected to the in-plane load on the static critical buckling load and dynamic instability are carried out.read more
Citations
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Posted ContentDOI
Nonlinear Vibrations of Rotating Pretwisted Composite Blade Reinforced by Functionally Graded Graphene Platelets Under Combined Aerodynamic Load and Air Flow in Tip Clearance
X. J. Gu,Wen Zhang,Y. F. Zhang +2 more
TL;DR: In this article, the primary resonance and nonlinear vibrations of the functionally graded graphene platelet (FGGP)-reinforced rotating pretwisted composite blade under combined the external and multiple parametric excitations are investigated with three different distribution patterns.
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Nonlinear forced vibration of in-plane bi-directional functionally graded materials rectangular plate with global and localized geometrical imperfections
TL;DR: In this article, the authors investigated the nonlinear vibration of the in-plane bi-directional functionally graded (BDFG) plate with global and localized geometrical imperfection subjected to a transverse harmonic excitation.
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TL;DR: In this article, the authors investigated the complex nonlinear vibrations and internal resonance of the rotating blade subjected to the aerodynamic force, which is simplified to a pretwisted rotating cantilever rectangular plate with the varying cross-section and varying rotating speed.
Journal ArticleDOI
Free Vibrations of Functionally Graded Graphene-Reinforced Composite Blades with Varying Cross-Sections
TL;DR: In this paper, free vibrations of functionally graded (FG) graphene-reinforced composite blades with varying cross-sections are investigated considering the cantilever boundary conditions, the free vibrations are investigated.
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TL;DR: In this paper, dynamic stability analysis is carried out for a rotating tapered cantilever beam made of bi-directional functionally graded (BDFG) materials with time-dependent rotating velocity.
References
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Book
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Journal ArticleDOI
Nonlinear vibration of metal foam cylindrical shells reinforced with graphene platelets
Yan Qing Wang,Chao Ye,Jean W. Zu +2 more
TL;DR: In this paper, a nonlinear vibration analysis of metal foam circular cylindrical shells reinforced with graphene platelets is performed, and the results demonstrate that GPL reinforced metal foam (GPLRMF) shells exhibit hardening-spring vibration characteristics.
Journal ArticleDOI
Vibration behaviors of functionally graded rectangular plates with porosities and moving in thermal environment
Yan Qing Wang,Jean W. Zu +1 more
TL;DR: In this article, a study on the vibrations of functionally graded material (FGM) rectangular plates with porosities and moving in thermal environment was conducted, where the porosity distribution of the FGM plates was taken into account by using von Karman nonlinear plate theory.
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