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A Monte Carlo analysis of the Viking lander dynamics at touchdown
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In this paper, the performance of the Viking lander has been evaluated by using a Monte Carlo simulation, and all results are presented in statistical form, including the three sigma design values of maximum rigid body accelerations and the minimum clearance of the lander body during landing.Abstract:
The performance of the Viking lander has been evaluated by using a Monte Carlo simulation, and all results are presented in statistical form. The primary objectives of this analysis were as follows: (1) to determine the three sigma design values of maximum rigid body accelerations and the minimum clearance of the lander body during landing; (2) to determine the probability of an unstable landing; and (3) to determine the probability of the lander body striking a rock. Two configurations were analyzed with the only difference being in the ability of the primary landing gear struts to carry tension loads.read more
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Hierarchical Optimization of Landing Performance for Lander with Adaptive Landing Gear
TL;DR: A parameterized dynamics analysis model of legged lander with adaptive landing gear was established and sensitivity analysis of landing conditioning factors was carried out according to the results of experimental design to improve the landing performances.
Journal ArticleDOI
Soft landing stability analysis of a Mars lander under uncertain terrain
TL;DR: In this article, a Mars lander with 10 attitude control thrusters is introduced and its dynamics model is then established considering plastic deformation parts and nonlinear contact forces, and the effectiveness and accuracy of the dynamics modeling method are verified by experiments with an average relative error of 10%.
References
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Verification of a landing dynamics computer program using Viking Lander data
R. J. Muraca,C. A. King +1 more
TL;DR: An investigation was conducted to verify the accuracy of the Landing Dynamics Computer Program (LDCP) used to simulate the landing event of the Viking Lander on to the Martian surface by comparing the analytical data with results from a test program involving a dynamically scaled model of a VL configuration.