A comparison between different finite elements for elastic and aero-elastic analyses

Mahran, M. R.; Elsabbagh, Adel; Negm, Hani M.

doi:10.1016/j.jare.2017.06.009

Cited by 15 publications

(11 citation statements)

References 17 publications

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“…In a recent study, Mahran et al. 14 found that QUAD9NOD element is the best choice for aeroelastic analysis considering its efficiency and computational cost. Kuo 15 presented the effect of variable fiber spacing on the supersonic flutter of composite laminated plate.…”

Section: Introductionmentioning

confidence: 99%

Stochastic aeroelastic analysis of laminated composite plate with variable fiber spacing

Sharma

Swain

Maiti

et al. 2021

Journal of Composite Materials

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In this paper, the dynamic and aeroelastic analysis of variable fiber spacing composite (VFSC) laminated plates are carried out. The effects and benefits of changing the fiber distribution pattern on natural frequency and mode shape are explored taking various boundary conditions. Taking cantilever boundary condition flutter characteristics of VFSC plate with different fiber distribution patterns are compared. Further stochasticity of flutter velocity due to randomness in material properties that could arise due to complex manufacturing and fabrication process of VFSC laminates is investigated. The perturbation technique is implemented to perform the stochastic as well as reliability analysis. Various parametric studies are conducted to check the accuracy and efficiency of perturbation technique, by comparing the results with that of Monte Carlo simulation and the first-order reliability method.

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Section: Introductionmentioning

confidence: 99%

Stochastic aeroelastic analysis of laminated composite plate with variable fiber spacing

Sharma

Swain

Maiti

et al. 2021

Journal of Composite Materials

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“…This is attributed to its ability to discretize complex structures into small elements based on a geometric Computational Analysis for Design (CAD) model. In aeroelasticity, FEM can be applied to aerodynamics [42] or structures [3], and also its shape functions can be used in aeroelastic coupling [4]. The main point AMME-20 Journal of Physics: Conference Series 2299 (2022) 012005 is to select the appropriate element with the appropriate shape functions approximation for the required analysis.…”

Section: Aerodynamic and Structure Analysesmentioning

confidence: 99%

“…The main point AMME-20 Journal of Physics: Conference Series 2299 (2022) 012005 is to select the appropriate element with the appropriate shape functions approximation for the required analysis. Mahran et al compared five shell elements for aeroelastic analysis and found the 9-node quadrilateral element is the best and most accurate element among them [3]. In this comparison, they include the 3-node triangular element, 4-node quadrilateral element, modified 4-node quadrilateral element, 8-node element, and 9-node element.…”

Section: Aerodynamic and Structure Analysesmentioning

confidence: 99%

“…In this comparison, they include the 3-node triangular element, 4-node quadrilateral element, modified 4-node quadrilateral element, 8-node element, and 9-node element. Several other aeroelastic models were developed using triangular [4] or quadrilateral elements [3]. In aerodynamics, Svacek [5] and Svacek and Horacek [6] established In some other applications, it is much easier to analyze plate or beam like models instead of dealing with full complex structure configurations.…”

Section: Aerodynamic and Structure Analysesmentioning

confidence: 99%

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Analysis, control, and optimization of aeroelastic systems: an introduction to the recent literature for the new investigator

Kasem

2022

J. Phys.: Conf. Ser.

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Aeroelasticity studies the static and dynamic interaction between structural deformation and fluid forces. As a result, the aeroelasticity is usually divided into three parts: aerodynamics, structural response, and dynamics with statics as a special case. Instabilities may occur to this interaction (feedback) that lead to structural failure and, even when no instability occurs, the interaction may lead to degradation or improvement of the system performance. There are several unstable phenomena may occur for elastic bodies such as flutter, divergence, low cycle oscillation, buffet, and control surface reversal. These unstable phenomena can be classified as dynamic or static. The present work provides a tutorial for those newly encountering aeroelasticity and a review of the recent literature from this century (after 2000). This includes mathematical modelling and its applications to airplanes, rotor blades, energy harvesting, and the control, and optimization of aeroelastic systems. Recent research advances are summarized and some suggestions for future work are made.

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“…Based on this approximation, a blade is meshed as a 3D model, but it is modeled numerically in FE using quadrilateral element. It is found that higher-order elements such as nine-node element can obtain results more accurate than linear quadrilateral elements in elastic and aeroelastic analyses [8]. So, the element selection is also important.…”

Section: Blade Construction and Finite Element Analysismentioning

confidence: 99%

Aerodynamic, Structural and Aeroelastic Design of Wind Turbine Blades

Kasem¹

2020

Design Optimization of Wind Energy Conversion Systems With Applications

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With the negative impact of conventional energy resources that have been used worldwide, there is a demand for using other resources such as wind energy. Tons of researches have been applied around the globe on the process of designing and manufacturing wind energy conversion systems. In the present chapter, we are concentrating on wind turbine blades' structural design process. The structural design of a wind turbine blade includes defining the wind turbine loads, selecting a suitable material, creating a structural model, and solving the model using the finite element method. This process will be repeated several times until a final design is achieved. The present chapter includes a discussion on the finite element method and wind turbine aeroelasticity.

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A comparison between different finite elements for elastic and aero-elastic analyses

Abstract: Graphical abstract

Cited by 15 publications

References 17 publications

Stochastic aeroelastic analysis of laminated composite plate with variable fiber spacing

Stochastic aeroelastic analysis of laminated composite plate with variable fiber spacing

Analysis, control, and optimization of aeroelastic systems: an introduction to the recent literature for the new investigator

Aerodynamic, Structural and Aeroelastic Design of Wind Turbine Blades

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