Thermal Post-Buckling and Vibration Analysis of Composite Conical Shell Structures Using Layerwise Theory

Roh, Jae Kyu; Woo, Ji-Hye; Lee, In

doi:10.1080/01495730802540031

Cited by 15 publications

(5 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…There are three methods to study the vibration characteristics: simulation analysis method [15][16][17], theoretical analysis method [18] and experimental analysis method [19]. The simulation analysis method is to analyze the vibration characteristics after solving the characteristic value of the finite element analysis of the structure [20][21][22]. Therefore, it is widely used in analyzing vibration characteristics of complex mechanical systems.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Vibration Characteristics of Electro-hydraulic 3-UPS/S Parallel Stabilized Platform

Yuan

Wang

Pang

et al. 2023

Preprint

View full text Add to dashboard Cite

With the development of fluid power transmission and control and control technology, using electro-hydraulic driven can significantly improve the load-carrying capacity, stiffness, and control accuracy of the stabilization platforms. However, compared to mechanical driven, electro-hydraulic driven parallel stabilization platform needs to consider the stiffness and damping of the fluid, as well as the coupling effect between the fluid and the structure, making the modal and dynamic response characteristics of the mechanism more complex. Aiming at the above problems, taking the electro-hydraulic driven 3-UPS/S parallel stable platform as the research object, considering the hinge stiffness, the vibration characteristic equation of the mechanism was established by using the virtual work principle. Then the variation characteristics of natural frequency and vibration response with the position of mechanism were analyzed basing on the dynamic equation. Finally, the correctness of the model was verified by modal test and Runge-Kutta methods. This study can provide a theoretical basis for the dynamic design of electro-hydraulic driven parallel mechanisms.

show abstract

Section: Introductionmentioning

confidence: 99%

Analysis of Vibration Characteristics of Electro-hydraulic 3-UPS/S Parallel Stabilized Platform

Yuan

Wang

Pang

et al. 2023

Preprint

View full text Add to dashboard Cite

show abstract

“…Many authors have addressed nonlinear forced vibrations of TCSs (Krysko et al, 2005; Roh et al, 2008; Shul’ga and Bogdanov, 2003). In this context, Chen and Dai (2009) studied nonlinear forced vibration of rotating TCSs.…”

Section: Introductionmentioning

confidence: 99%

Combination resonance analysis of imperfect functionally graded conical shell resting on nonlinear viscoelastic foundation in thermal environment under multi-excitation

Aris

Ahmadi

2021

Journal of Vibration and Control

View full text Add to dashboard Cite

In this work, nonlinear forced vibrations of truncated conical shells are presented using a semi-analytical method. The material properties are varied along the thickness direction as a power law distribution. The functionally graded truncated conical shells are exposed to external harmonic load and placed in the thermal environment and have an initial imperfection. Furthermore, the functionally graded truncated conical shells rests on generalized nonlinear viscoelastic foundations which consisted of a Winkler and Pasternak foundation parameters augmented by a Kelvin–Voigt viscoelastic model and a nonlinear cubic stiffness. The fundamental equations are extracted using first-order shear deformation theory in conjunction with nonlinear von Kármán relationships. The partial differential equations of truncated conical shells are reduced through Galerkin’s method, and the result is extracted using the multiple scales method. To analyze the resonance analyses, a two-term external excitation is considered. In this regard, various secondary resonances are investigated, and finally, the analyses about combination resonances are represented. To investigate the presented approach, a comparison study is performed with those addressed by other researchers. To analyze the nonlinear combination resonance behavior of truncated conical shells, the effect of geometrical characteristics, material properties, power law index, thermal effects, external load amplitude, and initial imperfection are examined. Finally, the steady-state responses of the nonlinear system are analyzed. As one of the most interesting results, the softening behavior of truncated conical shells with inverse quadratic distribution is the most, and for the quadratic distribution is the least.

show abstract

“…In most research works published in the literature, it is assumed that the fibers are laid out in the meridional and circumferential directions. [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18] Figure 1 shows that for such a conical panel in the meridional fiberreinforced layers the distance between the fibers changes along the meridional coordinate. Therefore, for this type of lamina the material characteristics of macrostructure and hence the stiffness coefficients of lamina cannot be kept constant.…”

Section: Introductionmentioning

confidence: 99%

“…Thermal buckling analysis of laminated conical shell/panel embedded with and without piezoelectric layer subjected to uniform temperature rise based on a higher order shear deformation theory was studied using the finite element method by Singh and Babu. 5 Roh et al 6 used the finite element method to study thermal postbuckling and vibration characteristics of composite open conical shell panels. Kundu and Han 7 also used the finite element method in nonlinear buckling analysis of hygrothermoelastic composite shell panels.…”

Section: Introductionmentioning

confidence: 99%

An investigation into the static response of fiber-reinforced open conical shell panels considering various types of orthotropy

Maleki

Tahani

2013

Proceedings of the Institution of Mechanical Engineers, Part C:

View full text Add to dashboard Cite

In this study, bending of composite open conical shell panels subjected to various distributed mechanical loads with various types of orthotropy is investigated. The stiffness coefficients are assumed to be functions of the meridional and circumferential coordinates in panels, which are produced by various methods for the realistic applications. In the first case of orthotropic open conical shell panels, the orientation of fibers are assumed to be in the meridional and circumferential directions. The stiffness coefficients of this type of fiber-reinforced panel are usually assumed to be constant. It is shown that due to the geometry of the conical surface, thickness of laminate will be changed along the meridional direction. The effect of stiffness variation on the response of panel is considered for the first time. In the case of open conical shell panel, which is fabricated by molding the prepreg layers around a conical-shaped mandrel, angle between fibers and meridional lines and, consequently, stiffness coefficients are assumed to be functions of the circumferential coordinates. In the third type, open conical shell panel can be made by cutting from a filament wound circular conical shell. In this case, thickness and ply orientation are functions of the shell coordinates. In this article, different path definitions for variable stiffness filament wound shells are considered. The inclusion of this geometric complicating effect in static analysis will add considerably to the complication and cost of a solution scheme. This article presents some results to show when these assumptions have a significant effect on the end result. The governing equations are based on the first-order shear deformation theory. The governing equations are discretized at whole domain grid points, and the boundary conditions are implemented exactly at boundary grid points using the generalized differential quadrature method. Application of the generalized differential quadrature to the governing equations, solution domain and boundary conditions leads to a system of algebraic equations. Various combinations of clamped, simply supported and free boundary conditions are implemented. It is found that the present method can accurately analyze fiber-reinforced open conical shell panels with various types of orthotropy.

show abstract

Thermal Post-Buckling and Vibration Analysis of Composite Conical Shell Structures Using Layerwise Theory

Cited by 15 publications

References 13 publications

Analysis of Vibration Characteristics of Electro-hydraulic 3-UPS/S Parallel Stabilized Platform

Analysis of Vibration Characteristics of Electro-hydraulic 3-UPS/S Parallel Stabilized Platform

Combination resonance analysis of imperfect functionally graded conical shell resting on nonlinear viscoelastic foundation in thermal environment under multi-excitation

An investigation into the static response of fiber-reinforced open conical shell panels considering various types of orthotropy

Contact Info

Product

Resources

About