Investigation on landing impact dynamic and low-gravity experiments for deep space lander

Chen, Jinbao; Nie, Hong; Wan, Junlin; Lin, Qing

doi:10.1007/s11433-014-5423-3

Cited by 8 publications

(2 citation statements)

References 11 publications

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“…In the past few decades, some scientists have been dedicated to experimental research on low gravity. 31 , 32 , 33 Existing methods include tilted table test, drop tower test, deceleration aircraft test and centrifugal force test. However, some of these methods incur significant costs (such as tower and aircraft), some of them have low accuracy (such as tower and tilted table) and some of them are not suitable for large-scale mechanical experiments (such as centrifugal force test).…”

Section: Discussionmentioning

confidence: 99%

The contact force between lunar-based equipment and lunar soil

Chen,

Xu,

et al. 2024

iScience

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Section: Discussionmentioning

confidence: 99%

The contact force between lunar-based equipment and lunar soil

Chen,

Xu,

et al. 2024

iScience

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“…Landing tests under different external forces were conducted, successfully reproducing the bouncing phenomenon of the lunar vehicle when landing in a microgravity environment. Chen et al [16] took a different approach by deriving a dynamic similarity law for deep space landers and proposed a new method for low-gravity simulation on the ground, and verified the accuracy of the method through landing experiments. In the study of large space mesh antenna deployment, simulations conducted by Zhao et al [17] showed that the incomplete unloading of gravity has a non-negligible impact on the deployment dynamics of the entire antenna, and the number and location of suspended nodes influence the compensation effect.…”

Section: Introductionmentioning

confidence: 99%

Design and Analysis of Low-Gravity Simulation Scheme for Mars Ascent Vehicle

Li,

Wang,

et al. 2024

Aerospace

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The sample carried back by the Mars Ascent Vehicle (MAV) is a potential flagship mission of deep space exploration in recent years. A low-gravity simulation experiment is an effective method and a necessary stage for verifying the performance of the MAV launch dynamic in Earth’s gravity. In this paper, the uniqueness of low-gravity simulation is illustrated by the classical pulley balance method for the high dynamic process of a test model of the MAV. Its movement direction is the same as the compensation force, which leads to the relaxation of the sling and the failure of the compensation force in traditional cable suspension. Here, three cable suspension schemes including an improved pulley balancing scheme based on a coordinate transformation scheme and based on a dynamic pulley group scheme are proposed. For the actual launch condition of the MAV, the motion state of the ascent under the schemes and the real Mars launch are compared, which proves the feasibility of the schemes. Among them, the improved pulley balancing scheme has the best gravity compensation effect, and the error between the average value and the required value is the smallest, only 1%.

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