Shen Xiawei, Wang Aimin, Liu Wanbing, Wang Rongyang
Huzhou Vocational and Technical College, Huzhou, 313000, China.
The Key Laboratory of New Energy Electric Drive Technology of Huzhou, Huzhou, 313000, China.
Sci Rep. 2025 Jul 1;15(1):22243. doi: 10.1038/s41598-025-06139-x.
This paper presents a computational fluid dynamics (CFD) analysis of the external flow field of a high-speed elevator car. A fairing with a varying cross-section is designed to improve the aerodynamics of the high-speed elevator car. An optimization study of the fairing is performed by combining the parametric optimization method and CFD. The cross-section of the fairing is parameterized by NURBS curves; then, the Latin experimental design method is used to generate test sample points, a mathematical model is formulated utilizing the response surface model approximation, and global optimization is conducted through the application of a multi-island genetic algorithm. The results show that by empirically adding the fairing, the aerodynamic resistance of the high-speed elevator car can be significantly reduced by 36.6% compared to that of the original model; moreover, by optimizing the designed fairing through modern optimization methods, the aerodynamic resistance of the high-speed elevator car can be further reduced by 39.3% compared to that of the original model. The structural parameters of the fairing have a significant impact on the aerodynamic performance of the high-speed elevator.
本文对高速电梯轿厢的外部流场进行了计算流体动力学（CFD）分析。设计了一种具有可变横截面的整流罩，以改善高速电梯轿厢的空气动力学性能。通过结合参数优化方法和CFD对整流罩进行了优化研究。整流罩的横截面由非均匀有理B样条（NURBS）曲线参数化；然后，采用拉丁试验设计方法生成测试样本点，利用响应面模型近似建立数学模型，并通过应用多岛遗传算法进行全局优化。结果表明，通过凭经验添加整流罩，高速电梯轿厢的空气阻力与原始模型相比可显著降低36.6%；此外，通过现代优化方法对设计的整流罩进行优化，高速电梯轿厢的空气阻力与原始模型相比可进一步降低39.3%。整流罩的结构参数对高速电梯的空气动力学性能有显著影响。
