为了解采样机具与模拟月壤间的相互作用，同时验证月壤采样机具模块化建模的可行性.基于中国地质大学（武汉）研制的CUG-1A型模拟月壤，开展不同条件下机具贯入力载的试验研究，并依据试验结果建立理论模型进行验证.各机具在浅层模拟月壤贯入阻力平均增长率为19.9%，次浅层提升至38.18%，深层出现陡增达到63.43%；贯入速度对贯入阻力的平均误差为2.5%；不同入土角度下贯入阻力的平均增长率为62.85%；不同截面机具贯入阻力随截面面积增长而增长，值近似为1∶2∶3∶4.同时进行了机具结构模块化验证，理论模型与试验结果吻合度在85%以上.采样机具所受贯入阻力与贯入深度、方式和机具结构明显相关，可建立模块化理论模型准确预估不同条件机具的贯入阻力.

To understand the interaction between sampling machines and lunar soil simulant, and to verify the feasibility of modular modeling of lunar soil sampling machines. The experimental study on mechanical penetration load under different conditions was carried out, based on the CUG-1A lunar soil simulant developed by China University of Geosciences (Wuhan), and the theoretical model was established based on the experimental results for verification. The average growth rate of penetration resistance of each machine in the shallow simulation of lunar soil was 19.9%, which was increased to 38.18% in the shallow simulation, and 63.43% in the deep simulation. The average error of penetration velocity to penetration resistance was 2.5%; the average growth rate between penetration angle and penetration resistance was 62.85%; the penetration resistance of different cross-section machines was approximately 1∶2∶3∶4. At the same time, the modular verification of the machine structure was carried out, and the accuracy of the test and model can reach more than 85%. The penetration resistance of sampling machines is significantly correlated with penetration depth, mode and machine structure, and the modular theoretical model can be established to accurately predict the penetration resistance of machines under different conditions.