模拟月壤在不同堆积状态下的紧实度研究

月球表面覆盖着一层细颗粒粉末状的松散月壤，这必将对月球探测车辆的行驶性能带来影响。研究用于月面力学试验的模拟月壤紧实度，对保证月球探测车辆的正常工作具有重要意义。圆锥指数和容重都可以表征模拟月壤的紧实度，通过不同的分析方法对模拟月壤进行整备，从而得出模拟月壤在不同堆积状态下圆锥指数和容重的变化规律，并且将其结果与真实月壤进行比较，其结果为月球车内场试验提供了标准和依据。

Study on Compaction of Simulant Lunar Soil under Different Deposit State

The lunar surface is covered with the deposit of loose regolith which is ultrafine, granular and powdery, which inevitably will influence the driving performance of lunar surface. It＇s of significance for the assurance of proper working of lunar detecting vehicles to Study the compaction of simulated lunar soil used for the mechanical tests on lunar surface. The compaction of stimulant lunar soil could be determined by the in- dex and bulk density of cone. Variation law of the index and bulk density of cone under different deposit state is obtained by preparing the simulant lunar soil through different analytical methods. The obtained results are compared with those by lunar soil. The results provide criterion and basis for the tests on lunar surface.