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Aerodynamic optimization of helicopter rear fuselage

机译:直升机后机身的空气动力学优化

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An optimization process for the rear helicopter fuselage is presented using Genetic Algorithms and Kriging surrogate models. Shape parameterization is carried out with the super ellipse technique employed for the well-known ROBIN fuselage. The simulations were based on the RANS equations solved using the HMB CFD code. It is shown that a decrease of fuselage drag around 2.5% is possible without compromising the structure and the functionality of the design. Combined with an optimization of the helicopter skids, benefits of up to 4.6% were possible. The demonstrated method can be applied to fuselages of any shape during the initial design phase. (C) 2018 Elsevier Masson SAS. All rights reserved.
机译:利用遗传算法和克里格代理模型,提出了直升机后机身的优化过程。形状参数化是通过众所周知的ROBIN机身采用的超级椭圆技术进行的。仿真基于使用HMB CFD代码求解的RANS方程。结果表明,在不损害设计的结构和功能的情况下,可以将机身阻力降低约2.5%。结合直升机滑道的优化,可以实现高达4.6%的收益。在初始设计阶段,该方法可应用于任何形状的机身。 (C)2018 Elsevier Masson SAS。版权所有。

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