RAMCOM-2 - RAM Mixer Contactless Monitoring

猎鹰项目位于艾尔斯伯里附近的老火箭研究机构韦斯科特风险公园，是目前英国仅有的三家制造固体燃料火箭和火箭推进剂的公司之一。以前，我们使用传统的高剪切混合来组合推进剂组分，如铝粉、高氯酸铵、各种粘结剂和HTPB橡胶；然而，Falcon正在为新的应用采用共振声混合(RAM)，因为它有许多优点。虽然共振声混合提供了许多好处，但我们的问题是，混合作用(发生在夹紧到桌子上的封闭容器中，以容器和桌子的共振频率振动)还没有被完全理解。为了一致性，推进剂成分的均匀分散是至关重要的，尤其是在推进剂成分可能具有不同的大小和密度的情况下，这一点尤其重要，更不用说其他添加剂对塑化HTPB橡胶基材的影响尚不清楚。我们的目标是与NPL一起开发一种技术，使我们能够在动态混合过程进行的同时跟踪其质量控制和新配方的优化。

The Falcon Project based on Westcott Venture Park, the old Rocket Research Establishment near Aylesbury is one of only three companies who currently manufacture solid fuel rockets and rocket propellants in the UK. Previously we used conventional high shear mixing to combine the propellant components such as aluminium powder, ammonium perchlorate, various binders and HTPB rubber; However, Falcon is adopting Resonant Acoustic Mixing (RAM) for new applications because it has many advantages.Whilst RAM offers many benefits, our problem is that the mixing action (which takes place in a closed vessel clamped to a table which vibrates at the resonant frequency of the vessel and table) is not fully understood. For consistency, it's critical that the propellant constituents are uniformly dispersed, and how that takes place is particularly where the components can have different sizes and densities let alone the effect of other additions to plasticise the HTPB rubber base is unclear. Our objective is to develop a technique together with NPL to enable us to follow the dynamic mixing process whilst it's in progress both for quality control and optimisation of new formulations.