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Regolith simulant preparation methods for hardware testing

机译:用于硬件测试的Regolith模拟物制备方法

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摘要

To qualify hardware for space flight, great care is taken to replicate the environment encountered in space. Emphasis is focused on presenting the hardware with the most extreme conditions it might encounter during its mission lifetime. The same care should be taken when regolith simulants are prepared to test space system performance. Indeed, the manner a granular material is prepared can have a very high influence on its mechanical properties and on the performance of the system interacting with it. Three regolith simulant preparation methods have been tested and are presented here (rain, pour, vibrate). They should enable researchers and hardware developers to test their prototypes in controlled and repeatable conditions. The pour and vibrate techniques are robust but only allow reaching a given relative density. The rain technique allows reaching a variety of relative densities but can be less robust if manually controlled.
机译:为了使硬件具备进行太空飞行的资格,必须格外小心地复制在太空中遇到的环境。重点是为硬件提供在其使用寿命内可能遇到的最极端条件。当准备重试模拟物以测试空间系统性能时,应采取相同的谨慎措施。确实,颗粒材料的制备方式对其机械性能以及与其相互作用的系统的性能具有非常高的影响。已测试并测试了三种雷哥石模拟物制备方法(雨水,倾倒,振动)。它们应该使研究人员和硬件开发人员能够在受控且可重复的条件下测试其原型。倾倒和振动技术坚固耐用,但仅允许达到给定的相对密度。雨淋技术可以达到各种相对密度,但如果手动控制,则鲁棒性会降低。

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