scholarly journals Topological magnetic solitons on a paraboloidal shell

2015 ◽  
Vol 379 (1-2) ◽  
pp. 47-53 ◽  
Author(s):  
Priscila S.C. Vilas-Boas ◽  
Ricardo G. Elias ◽  
Dora Altbir ◽  
Jakson M. Fonseca ◽  
Vagson L. Carvalho-Santos
Keyword(s):  
Paraboloidal Shell

Distributed Modal Voltages of Nonlinear Paraboloidal Shells With Distributed Neurons

2004 ◽  
Vol 126 (1) ◽  
pp. 47-53 ◽  
Author(s):  
H. S. Tzou ◽  
J. H. Ding
Keyword(s):  
Dynamic Responses ◽  
Dynamic State ◽  
Structural Components ◽  
Shells Of Revolution ◽  
Membrane Component ◽  
Fully Integrated ◽  
In Situ Sensors ◽  
Membrane Components ◽  
Paraboloidal Shell

Effective health monitoring and distributed control of advanced structures depends on accurate measurements of dynamic responses of elastic structures. Conventional sensors used for structural measurement are usually add-on “discrete” devices. Lightweight distributed thin-film piezoelectric neurons fully integrated (laminated or embedded) with structural components can serve as in-situ sensors monitoring structure’s dynamic state and health status. This study is to investigate modal voltages and detailed signal contributions of linear or nonlinear paraboloidal shells of revolution laminated with piezoelectric neurons. Signal generation of distributed neuron sensors laminated on paraboloidal shells is defined first, based on the open-voltage assumption and Maxwell’s principle. The neuron signal of a linear paraboloidal shell is composed of a linear membrane component and a linear bending component; the signal of a nonlinear paraboloidal shell is composed of nonlinear and linear membrane components and a linear bending component due to the von Karman geometric nonlinearity. Signal components and distributed modal voltages of linear and nonlinear paraboloidal shells with various curvatures and thickness are investigated.

Experiments on vibration control of a piezoelectric laminated paraboloidal shell

2017 ◽  
Vol 82 ◽  
pp. 279-295 ◽  
Author(s):  
Honghao Yue ◽  
Yifan Lu ◽  
Zongquan Deng ◽  
Hornsen Tzou
Keyword(s):  
Vibration Control ◽  
Paraboloidal Shell

scholarly journals Application of First-order Shear Deformation Theory on Vibration Analysis of Stepped Functionally Graded Paraboloidal Shell with General Edge Constraints

Materials ◽  
2018 ◽  
Vol 12 (1) ◽  
pp. 69 ◽  
Author(s):  
Fuzhen Pang ◽  
Haichao Li ◽  
Fengmei Jing ◽  
Yuan Du
Keyword(s):  
Shear Deformation ◽  
Deformation Theory ◽  
Jacobi Polynomials ◽  
Shear Deformation Theory ◽  
Functionally Graded ◽  
Good Convergence ◽  
First Order ◽  
Edge Conditions ◽  
Doubly Curved ◽  
Paraboloidal Shell

The paper introduces a semi-analytical approach to analyze free vibration characteristics of stepped functionally graded (FG) paraboloidal shell with general edge conditions. The analytical model is established based on multi-segment partitioning strategy and first-order shear deformation theory. The displacement components along axial direction are represented by Jacobi polynomials, and the Fourier series are utilized to express displacement components in circumferential direction. Based on penalty method about spring stiffness technique, the general edge conditions of doubly curved paraboloidal shell can be easily simulated. The solutions about doubly curved paraboloidal shell were solved by approach of Rayleigh–Ritz. Convergence study about boundary parameters, Jacobi parameters et al. are carried out, respectively. The comparison with published literatures, FEM and experiment results show that the present method has good convergence ability and excellent accuracy.

Modal sensing and control of paraboloidal shell structronic system

2018 ◽  
Vol 100 ◽  
pp. 647-661 ◽  
Author(s):  
Honghao Yue ◽  
Yifan Lu ◽  
Zongquan Deng ◽  
Hornsen Tzou
Keyword(s):  
Paraboloidal Shell ◽  
And Control

Spatially Distributed Signals of Nonlinear Paraboloidal Shells With Distributed Neurons

2001 ◽  
Author(s):  
H. S. Tzou ◽  
J. H. Ding
Keyword(s):  
Dynamic Responses ◽  
Dynamic State ◽  
Structural Components ◽  
Shells Of Revolution ◽  
Fully Integrated ◽  
Spatially Distributed ◽  
In Situ Sensors ◽  
Membrane Components ◽  
Paraboloidal Shell

Abstract Effective health monitoring and distributed control of advanced structures depends on accurate measurements of dynamic responses of elastic structures. Conventional sensors used for structural measurement are usually add-on “discrete” devices. Lightweight distributed thin-film piezoelectric neurons fully integrated (laminated or embedded) with structural components can serve as in-situ sensors monitoring structure’s dynamic state and health status. This study is to investigate modal voltages and detailed signal contributions of linear or nonlinear paraboloidal shells of revolution laminated with piezoelectric neurons. Signal generation of distributed neuron sensors laminated on paraboloidal shells is defined first, based on the open-voltage assumption and Maxwell’s principle. The neuron signal of a linear paraboloidal shell is composed of a linear membrane component and a linear bending component; the signal of a nonlinear paraboloidal shell governed by the von Karman geometric nonlinearity is composed of nonlinear and linear membrane components and a linear bending component. Signal components and distributed modal voltages of linear and nonlinear paraboloidal shells with various curvatures and thickness are investigated.

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