Multilevel Structural Optimization for Preliminary Wing-Box Weight Estimation

Bindolino, Giampiero; Ghiringhelli, G.L.; Ricci, Sergio; Terraneo, Mauro

doi:10.2514/1.41552

Cited by 68 publications

(53 citation statements)

References 15 publications

(20 reference statements)

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“…Nowadays, attempts to design a joined wing airplane are more frequent, but in most cases researchers concentrate on the primary configuration of a joined wing airplane, with the front wing below the aft wing [3][4][5][6][7][8][9][10][11][12][13][14]. The previous experience of the authors [15] led to the conclusion that the joined wing airplane could fly much better in an upside down configuration.…”

Section: Introductionmentioning

confidence: 99%

Performance Comparison of the Optimized Inverted Joined Wing Airplane Concept and Classical Configuration Airplanes

Sieradzki¹,

Dziubiński²,

Galiński³

2016

Archive of Mechanical Engineering

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The joined wing concept is an unconventional airplane configuration, known since the mid-twenties of the last century. It has several possible advantages, like reduction of the induced drag and weight due to the closed wing concept. The inverted joined wing variant is its rarely considered version, with the front wing being situated above the aft wing. The following paper presents a performance prediction of the recently optimized configuration of this airplane. Flight characteristics obtained numerically were compared with the performance of two classical configuration airplanes of similar category. Their computational fluid dynamics (CFD) models were created basing on available documentation, photographs and some inverse engineering methods. The analysis included simulations performed for a scale of 3-meter wingspan inverted joined wing demonstrator and also for real-scale manned airplanes. Therefore, the results of CFD calculations allowed us to assess the competitiveness of the presented concept, as compared to the most technologically advanced airplanes designed and manufactured to date. At the end of the paper, the areas where the inverted joined wing is better than conventional airplane were predicted and new research possibilities were described.

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Section: Introductionmentioning

confidence: 99%

Performance Comparison of the Optimized Inverted Joined Wing Airplane Concept and Classical Configuration Airplanes

Sieradzki¹,

Dziubiński²,

Galiński³

2016

Archive of Mechanical Engineering

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“…This method was studied by many scholars, such as Droegkamp [12], Bindolino [13], Laban [14], Hurlimann [15], and Sensmeier [16]. Such methods are generally based on finite element analysis to size the various components of the primary structure and compute their weight with material density and volume information [10].…”

Section: Introductionmentioning

confidence: 99%

“…Thus, accurate weight predictions are important, and beneficial for the exact assessment of aircraft design quality and design decision impact. Allowing for the aircraft conceptual design process including a large number of variable changes and trade studies [5][6][7], aircraft mass properties needs to be recalculated frequently with changes in design. Research on more accurate, rapid, practical, and design-sensitive weight estimation method remains a focus in the field of aircraft conceptual design [7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Wing weight estimation considering constraints of structural strength and stiffness in aircraft conceptual design

Chen¹,

Mingqiang²,

Zhong³

et al. 2014

International Journal of Aeronautical and Space Sciences

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According to the requirement of wing weight estimation and frequent adjustments during aircraft conceptual design, a wing weight estimation method considering the constraints of structural strength and stiffness is proposed to help designers make wing weight estimations rapidly and accurately. This method implements weight predictions on the basis of structure weight optimization with stiffness constraints and strength constraints, which include achievement of wing shape parametric modeling, rapid structure layout, finite element (FE) model automated generation, load calculation, structure analysis, weight optimization, and weight computed based on modeling. A software tool is developed with this wing weight estimation method. This software can realize the whole process of wing weight estimation with the method and the workload of wing weight estimation is reduced because much of the work can be completed by the software. Finally, an example is given to illustrate that this weight estimation method is effective.

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“…A different approach to solving optimization problems is presented in [3]. The authors decided to include phenomena such as aeroelastic failures and instability, in calculations relevant to statically indeterminate configuration.…”

Section: Introductionmentioning

confidence: 99%

Structural Optimization of Box Wing Aircraft

Kalinowski¹

2015

Archive of Mechanical Engineering

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The box wing system is an unconventional way to connect the lifting surfaces that the designers willingly to use in prototypes of new aircrafts. The article present a way to quickly optimize the wing structure of box wing airplane that can be useful during conceptual design. At the beginning, there is presented theory and methods used to code optimization program. Structure analysis is based on FEM beam model, which is sufficient in conceptual design. Optimization is performed using hybrid method, connection of simple iteration and gradient descent methods. Finally, the program is validated by case study.

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Multilevel Structural Optimization for Preliminary Wing-Box Weight Estimation

Cited by 68 publications

References 15 publications

Performance Comparison of the Optimized Inverted Joined Wing Airplane Concept and Classical Configuration Airplanes

Performance Comparison of the Optimized Inverted Joined Wing Airplane Concept and Classical Configuration Airplanes

Wing weight estimation considering constraints of structural strength and stiffness in aircraft conceptual design

Structural Optimization of Box Wing Aircraft

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