Technical progress in landing mechanisms for exploring small solar system bodies

Yin, Canhui; Ji, Huang; Quan, Qiquan; Tang, Dewei; Meng, Liang; Guo, Fangwei; Deng, Zongquan

doi:10.1016/j.paerosci.2021.100697

Cited by 11 publications

(3 citation statements)

References 118 publications

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“…未来可对低重力实验平台的模拟精度和低重力模拟范围做进一步改进. 实际上, 行星探测中的特种机器人还包括仿毛毛虫爬行机器人 [45] 、毛刷型弹跳机器人 [46] 和自变形机器人等 [47,48] , 感兴趣的读者可参阅文献 [49]. 不过, 上述新兴机器人在弱引力和高低温大幅变动的小行星表面的适用性还有待研究.…”

Section: 第一个跳跃探测任务为1988年苏联开展的phobos 2任unclassified

Recent development of landing dynamics over small celestial bodies

ZENG,

WEN,

2024

Sci. Sin.-Tech.

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Section: 第一个跳跃探测任务为1988年苏联开展的phobos 2任unclassified

Recent development of landing dynamics over small celestial bodies

ZENG,

WEN,

2024

Sci. Sin.-Tech.

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“…Asteroids are celestial bodies that orbit the sun, and are not easy to release gas and dust [2] . Surface landing, and sampling return of small bodies such as asteroids or comets are of great significance to a country's scientific and technological development [3][4] .…”

Section: Introductionmentioning

confidence: 99%

Dynamics Research and Analysis of landing on the surface of Asteroid

Chen

Zhou

2023

J. Phys.: Conf. Ser.

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Asteroid detection has been the main research field of deep space exploration, and even in the future years. Countries have carried out missions to flyby and landing on the surface of asteroids, the sampling can help human explore the origins of small bodies, as well as origin of the solar system. While the particular environmental factors such as small size and low gravity of asteroids make the landing more difficult, this paper designs a four-legged inverted triangle soft lander, supplemented by thrust reversers and rope anchors for stable landing. A mathematical model of the lander landing on the surface of target asteroid is established, and the motion and dynamic response of lander in different landing modes is studied, conditions and safe landing range is well defined. Results of the analysis have demonstrated the effectiveness of dynamic landing model for the proposed lander.

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“…2 A probe landing on the surface of an asteroid has the ability to arrange its onboard instruments to perform in situ analysis and a sample-storage program of the surface and subsurface materials. 3 Accordingly, in contrast to remote telemetry during orbiting, actual physical landing on asteroids contributes to the collection of more detailed and richer exploration results on the physical and chemical properties of materials. With the continuous improvement in academic achievement and cognitive abilities, asteroid missions have become the focus of deep space exploration.…”

Section: Introductionmentioning

confidence: 99%

Experimental method for the planar landing of a three-legged asteroid probe: The effects of asymmetric configuration and element forces

Yin

Quan

Tang

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part G:

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Focused on an asteroid probe with three-legged cushioning, this paper discusses the effects of the asymmetric configuration and the element forces form of the planarized cushioning mechanism on the method for developing the landing experiment. The main objectives are to present an accurate experimental analysis of the planar landing and to facilitate the construction of a micro-gravity experimental platform through the theoretical analysis in advance. Probe models based on the planar symmetric and asymmetric configurations of the cushioning mechanism were constructed and their parametric characterization was determined. Mathematical models of the element forces on cushioning legs were established and differences between each set of corresponding element forces were analyzed. Then, dynamics models explaining the landing process were established. On this basis, the maximum initial safe attitude angle and the change process of the attitude variables were researched. The results revealed that the asymmetric configuration greatly reduced the safety margin of the attitude angle and it was determined by the M-R(I) landing as 23°. In addition, the simplified version of the ground friction force could be employed for developing the experiment at the initial attitude angle of 20°, but it affected the results at the initial attitude angles of 0°, 5°, and 10°. At the initial attitude angle of 20°, which is more significant as the critical condition for dangerous landing, the normal footpad-ground contact of the merged leg could adopt the same stiffness coefficient as that of the real leg to facilitate the experimental design without affecting the experimental results.

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Technical progress in landing mechanisms for exploring small solar system bodies

Cited by 11 publications

References 118 publications

Recent development of landing dynamics over small celestial bodies

Recent development of landing dynamics over small celestial bodies

Dynamics Research and Analysis of landing on the surface of Asteroid

Experimental method for the planar landing of a three-legged asteroid probe: The effects of asymmetric configuration and element forces

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