FE analysis of geometry effects of an artificial bird striking an aeroengine fan blade

Meguid, S. A.; Mao, Ronghai; Ng, TP

doi:10.1016/j.ijimpeng.2007.04.008

Cited by 115 publications

(68 citation statements)

References 8 publications

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“…A majority of the more recent research on rigid flat plates focusses on the validation of the pressure at the centre of impact. Several papers also compare the deformation of the bird or the transferred momentum for different shapes, impact speeds and/or modelling techniques such as the standard Lagrangian, ALE, SPH or CEL method [36][37][38][39][40][41][42]. Numerically obtained momentum transfer for rigid rotated plates, wedges or splitter-like structures were not found in literature.…”

Section: Introductionmentioning

confidence: 99%

Characterization of real and substitute birds through experimental and numerical analysis of momentum, average impact force and residual energy in bird strike on three rigid targets: A flat plate, a wedge and a splitter

Allaeys

Luyckx

Paepegem

et al. 2017

International Journal of Impact Engineering

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To validate the increasingly used numerical models for optimization and verification of the designs subjected to bird strike, initial (calibration) tests are a necessity prior to full scale testing. Bird strike calibration tests on rigid targets specifically, give a valuable insight in the complex behaviour of a bird. This paper presents the results of a series of bird strike tests and simulations on three rigid targets (a plate, a wedge and a splitter) to quantify the forces originating from the change of momentum and splitting of the bird. In this study, momentum transfer is the key parameter to compare birds with different masses, materials, speeds, etc., as proposed in the reference works from the 20 th century. The main purpose of this paper is fourfold: (i) to introduce another way to measure momentum transfer on these kinds of structures and therefore get more consistent results, (ii) to show that gelatine generates similar impact forces as real birds, (iii) to point out that apart from the change of direction of the momentum, the deviatoric and/or dissipating constitutive behaviour of the bird also plays an important role and (iv) to show that a simple plate structure can be used to measure the residual energy of the bird remainders after an impact event. In a series of numerical simulations, the performance of a SPH bird with an EOS material model is used to validate the analytical models.

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Section: Introductionmentioning

confidence: 99%

Characterization of real and substitute birds through experimental and numerical analysis of momentum, average impact force and residual energy in bird strike on three rigid targets: A flat plate, a wedge and a splitter

Allaeys

Luyckx

Paepegem

et al. 2017

International Journal of Impact Engineering

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“…Foreign object damage (FOD) occurs continually in aviation industry, most of which comes from bird strike events [1] -soft body impact. As a rotating structure with high suction and broad cross-section area, the first stage fan blades on civil engine are extremely vulnerable to bird strike impact which may lead to tip clearance changes, aerodynamic performance decreases, rotor imbalance, secondary damage and even casing puncture.…”

Section: Introductionmentioning

confidence: 99%

“…This corrugated structure demonstrates favorable structural integrity and durability in both experimental and practical applications [4] . Hitherto, a large number of analytical, experimental and computational research have been done in bird-strike field and many of which are of great reference value [5][6][7][8][9] . However, there is a lack of research focusing on hollow fan blade exposed to bird-strike and fewer works have combined structural optimization with fan blade under impact conditions which are both concentrated here.…”

Section: Introductionmentioning

confidence: 99%

TC4 Hollow Fan Blade Structural Optimization Based on Bird-strike Analysis

Zeng¹,

Jiang²,

Chai

et al. 2015

Procedia Engineering

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Bird strike event, from which fan blade of aero-engine frequently suffers, always poses a danger to life on board. In this work, crashworthiness under bird strike event is taken into consideration in structural optimization of hollow fan blade together with static strength. First bird strike simulation on plate is conducted with the ALE method in ANSYS/LS-DYNA to validate the modeling algorithm and the effect of parameters variation on stress and strain result in bird material model is discussed. The effect is not obvious, so further optimization of the parameters is ignored. Bird strike simulation on solid and hollow fan blade shows that large deformation can absorb energy and relieve direct damage to blade. At this point, hollow structure hinders large deformation of the blade, thus causes more material failure than the solid one. 3-level orthogonal experiment is designed for 4 key geometric factors of the hollow blade structural optimization with transient strength as the objective and static strength as the constraint. For further analysis, sensitivity analysis is conducted to figure out the most important factor. Final result for the optimization design is given.

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“…However, the results showed that the model could not correctly predict the fluid mass going into the low pressure compressor. Recent studies using the commercial code ANSYS/LS-DYNA by Meguid et al [8] and Guan et al [9] focused on analysis of structural deformation of fan blades caused by bird strike and no aerodynamic studies were attempted.…”

Section: Introductionmentioning

confidence: 99%

Computational fluid dynamics simulations of blade damage effect on the performance of a transonic axial compressor near stall

Sayma

2014

Proceedings of the Institution of Mechanical Engineers, Part C:

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FE analysis of geometry effects of an artificial bird striking an aeroengine fan blade

Cited by 115 publications

References 8 publications

Characterization of real and substitute birds through experimental and numerical analysis of momentum, average impact force and residual energy in bird strike on three rigid targets: A flat plate, a wedge and a splitter

Characterization of real and substitute birds through experimental and numerical analysis of momentum, average impact force and residual energy in bird strike on three rigid targets: A flat plate, a wedge and a splitter

TC4 Hollow Fan Blade Structural Optimization Based on Bird-strike Analysis

Computational fluid dynamics simulations of blade damage effect on the performance of a transonic axial compressor near stall

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