Parametric design and analysis on the landing gear of a planet lander using the response surface method. (July 2018)

• Record Type: Journal Article
• Authors: Zheng, Guang; Nie, Hong; Luo, Min; Chen, Jinbao; Man, Jianfeng; Chen, Chuanzhi; Lee, Heow Pueh
• Is Part Of: Acta astronautica. Volume 148(2018)
• Page Start: 225
• Page End: 234
• Publication Date: 2018-07
• Subjects: Planet lander -- Parametric study -- Soft-landing -- Response surface method (RSM) -- Sensitivity analysis (SA); Astronautics -- Periodicals; Outer space -- Exploration -- Periodicals; Astronautics; Periodicals; 629.405
• DOI: 10.1016/j.actaastro.2018.05.020
• Languages: English
• ISSNs: 0094-5765

Abstract

Abstract: The purpose of this paper is to obtain the design parameter-landing response relation for designing the configuration of the landing gear in a planet lander quickly. To achieve this, parametric studies on the landing gear are carried out using the response surface method (RSM), based on a single landing gear landing model validated by experimental results. According to the design of experiment (DOE) results of the landing model, the RS (response surface)-functions of the three crucial landing responses are obtained, and the sensitivity analysis (SA) of the corresponding parameters is performed. Also, two multi-objective optimizations designs on the landing gear are carried out. The analysis results show that the RS (response surface)-model performs well for the landing response design process, with a minimum fitting accuracy of 98.99%. The most sensitive parameters for the three landing response are the design size of the buffers, struts friction and the diameter of the bending beam. Moreover, the good agreement between the simulated model and RS-model results are obtained in two optimized designs, which show that the RS-model coupled with the FE (finite element)-method is an efficient method to obtain the design configuration of the landing gear. Highlights: Parametric design and analysis on a planet lander are carried out using the RS-method. A landing gear model is analyzed and validated for two load cases. Three loading RS-models with seven design factors are obtained and meet the criteria. SA shows that the buffer design size/friction/beading beam are the important factors. Good agreement in simulated/RS-model results show that the RS-method is effective.