论文部分内容阅读
本文探讨了着陆器在星球表面降落冲击过程中土壤类型和密实度、冲击高度和足垫直径对冲击深度、加速度峰值和冲击力峰值的影响。分析结果表明,土壤类型和密实度对冲击深度的影响最大,其次为足垫直径,冲击高度的影响最小。相较于冲击高度,土壤的密实度对足垫在冲击过程中的加速度峰值的影响较冲击高度的大。建立了足垫冲击力峰值模型,模型的拟合相关系数R2均达到0.9以上,结果表明该模型能较好的预测足垫冲击力峰值。
In this paper, the effects of soil type and compaction, impact height and footpad diameter on impact depth, acceleration peak and impact force peak of lander during landing impact on the planet surface are discussed. The analysis results show that soil type and density have the greatest impact depth, followed by footpad diameter and impact height. Compared with the impact height, soil compaction has a greater impact on the acceleration peak of the footpads than the impact height. The peak value of footpad impact force was established. The fitting correlation coefficient R2 of the model reached above 0.9. The results show that this model can predict the peak value of footpad impact force better.