A near-optimal-trim-search method for six-degrees-of-freedom model insects: An application to flight in the lateral-wind condition

Anh Tuan Nguyen; Jae-Hung Han

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A near-optimal-trim-search method for six-degrees-of-freedom model insects: An application to flight in the lateral-wind condition

机译：A near-optimal-trim-search method for six-degrees-of-freedom model insects: An application to flight in the lateral-wind condition

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摘要

This paper presents an improved trim-search method for six-degrees-of-freedom (6-DOF) flapping-wing insects and its application to flight in the lateral-wind condition. A multibody-dynamics (MBD) code was developed and coupled with an extended unsteady vortex-lattice method (UVLM) to create a flapping-flight simulation framework. Using artificial neural networks (ANNs) and the genetic algorithm (GA), the trim-search method was developed to provide a near-optimal solution. The paper shows that the required power of the trim solution obtained by the present method is less than that from the conventional one. Based on the research results, the paper has revealed how a model insect can respond to sustain their hovering flight state in the lateral-wind condition. In general, the insect has to change its left- and right-wing kinematic parameters asymmetrically. The most noticeable differences between the kinematic parameters of the two wings are found in the sweep and rotation amplitudes. The research also showed an increase in the required power of the windward wing and a decrease in that of the leeward wing. However, the total required power generally grows due to the lateral wind.

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《Aerospace science and technology》 |2023年第2期|108101.1-108101.17|共17页
作者
Anh Tuan Nguyen; Jae-Hung Han;
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作者单位

Faculty of Aerospace Engineering, Le Quy Don Technical University, 236 Hoang Quoc Viet, Ha Noi, Viet Nam;

Department of Aerospace Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种英语
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关键词
Six-degrees-of-freedom insect flight; Optimal flapping flight; Multibody dynamics; Lateral-wind flight condition;

A near-optimal-trim-search method for six-degrees-of-freedom model insects: An application to flight in the lateral-wind condition

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