Landing stably is a precondition for exploring a small celestial body in situ. The surface of a small celestial body frequently has weak gravity and is irregular, and the surface environment is unknown and uncertain. The landing mechanism tends to rebound and turn over, and the landing stability time is long.
However, while most landing performance research has focused on lunar landing, there are differences between the surfaces of the moon and Mars.
The overloading acceleration of the equipment base obtained by simulation is close to that obtained by test, and the simulation result is slightly larger than the test. This is due to the mechanical flexibility of the landing mechanism, which will produce flexible deformation in the test and absorb part of the impact load. The changes of landing leg turnover angular velocity and turnover angle in simulation and test are relatively consistent.
Finally, authors come to the conclusion that the following methods are helpful to improve landing performance:Foot anchors can reduce landing slip and shorten landing stabilization time. A retro-rocket on top of the landing mechanism can weaken or prevent rebounding when landing.: retrieved 1 November 2023 from https://phys.org/news/2023-11-scientists-legged-small-celestial-body.html
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