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A comprehensive performance optimization method for the honeycomb buffer of a legged-type lander

Hui Wang (Department of Mechanical Engineering and Automation, Beihang University, Beijing, China)
Tianyu He (Department of Mechanical Engineering and Automation, Beihang University, Beijing, China)
Chunjie Wang (State Key Laboratory of Virtual Reality Technology and Systems, Beihang University, Beijing, China)

Aircraft Engineering and Aerospace Technology

ISSN: 0002-2667

Article publication date: 17 June 2021

Issue publication date: 5 August 2021

73

Abstract

Purpose

In the field of planetary exploration, the legged-type lander is a common landing buffer device. There are two important performance metrics for legged-type landers: the energy absorption capacity and landing stability. In this paper, a novel method is proposed to optimize the honeycomb buffer of a legged-type lander. Optimization design variables are the dimension parameters of honeycomb and the objective functions are the evaluation parameters of the above two performance metrics.

Design/methodology/approach

A multi-body dynamic model of a lander and a finite-element model of the metal honeycomb are established. Based on the simulation results of the finite-element model and the quartic polynomial, the surrogate models are established to evaluate the energy absorption capacity of honeycomb. Considering both the multi-body dynamic model and the surrogate models, the study designed the optimization flow of dimension parameters of honeycomb. Besides, the non-dominated sorting genetic algorithm II is used for iterative calculation.

Findings

Images of surrogate models show the monotonous functional relationship between the honeycomb’s energy absorption characteristics and its dimension parameters. Optimization results show an apparent contradiction among the objective functions. Besides, according to the simulation results, this method can significantly improve the comprehensive performance of the lander.

Originality/value

The novel method can effectively reduce the cost of honeycomb compression tests and improve the lander’s design. Therefore, it can be used for optimizing buffers of other types of legged-type landers.

Keywords

Citation

Wang, H., He, T. and Wang, C. (2021), "A comprehensive performance optimization method for the honeycomb buffer of a legged-type lander", Aircraft Engineering and Aerospace Technology, Vol. 93 No. 5, pp. 821-831. https://doi.org/10.1108/AEAT-02-2021-0043

Publisher

:

Emerald Publishing Limited

Copyright © 2021, Emerald Publishing Limited

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