Wing Support Stiffness Simulation and Reliability Evaluation in the Engine-Pylon Static Test

Xue, Caijun; Mei, Rong; Chang, Qing-Chun

doi:10.2514/1.c035236

Cited by 3 publications

(1 citation statement)

References 6 publications

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“…Attempts were made to overcome this by modelling the component in question with supermodels (highly refined representations with solid elements) and adjacent components with a coarse mesh, which allowed predictions similar to physical test data [20]. Similarly, a number of authors have presented work on the structural modelling and analysis of the pylon components [21][22][23][24][25][26]. Modelling methods typically comprise solid and shell element idealisations, with studies employing various approaches for sizing and optimisation of the pylon structure [21,22,26], and focusing effort on accurately capturing the mount joints and the load transfer through them [23 -24].…”

Section: Fig1 Engine Mounting Configurationsmentioning

confidence: 99%

Understanding Influence of Powerplant Component Connection Strategies on Aircraft Engine Structural Deformations

Martin¹,

Quinn²,

Murphy³

et al. 2021

Journal of Aircraft

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In conventional aircraft design engine loads are transferred directly from the engine core and fan case to the pylon via engine mounts. Literature is available on the modelling of individual powerplant components but limited work is available on the whole assembled system (engine, pylon and nacelle). The influence of the structural connections between the components on overall system performance has not been investigated. Herein a Finite Element model is described which can be used to assess connection strategies between powerplant components and if such arrangements can effectively enhance engine performance by reducing detrimental engine structural deformations (engine carcass bending, rotation, ovalization). The method is demonstrated for a generic high bypass ratio engine design, focusing on connections between the engine and thrust reverser unit. The method identifies a modified attachment scheme between the engine rear turbine casing and the inner barrel of the thrust reverser unit, which reduces engine deformations across multiple loading scenarios. Maximum reductions of 97% and 96% have been observed in carcass bending and ovalization respectively.

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