Modelling of Resonant Acoustic Mixing Parameters

共振声混合参数的建模

• 批准号: 2889976
• 金额: --
• 依托单位: University of Birmingham
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2023
• 资助国家: 英国
• 起止时间: 2023 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2889976
• 关键词: Modelling; Resonant; Acoustic; Mixing; Parameters

Traditionally, multi-material blended components are mixed inplanetary mixers, cast to blocks/blanks, and undergo subtractivemachining to form shaped components. Composites such assyntactics and highly filled resin based systems are blended in rotarydrums and other conventional blade based mixers over long periodsof time, decanted, moulded to blocks and again undergo subtractivemachining. These are both time consuming, wasteful and potentiallyhazardous when working with energetically-sensitive materials.Resonant Acoustic Mixing (RAM) is a novel powder/powder,powder/fluid and fluid/fluid mixing technology that has the potentialto directly mix materials into the final net (or near net) componentshape without further processing, removing or significantly reducingmaterial waste, time and hazards. RAM is being trialled with adefence contractor and is showing excellent results to-date. However,modelling of this mixing technique is in its infancy and has not beenaddressed and thus, cannot be said to be optimised. Numerous mixing(intensity, time, pressure temperature), material (particle size, shape,pre-blending, order of addition) and tooling (shape, composition,mixing head space) parameters impact the efficiency of RAM andthus if modelled would add significant value in optimising the mixingprocess.Modelling and/or trials would improve understanding of thecapability, both limitations and opportunities. A phase space ofmixing sweet-spots could be identified, further de-risking potentialprocessing operations by avoiding knife-edge scenarios. Once mixed,the blend of powders still needs to be decanted to a mouldtool. Thispresents a more controlled flowing environment but can lead to phaseseparation layering and other forms of de mixing especially when considering particles of different size or density.

传统上，多物质混合组件是在星空搅拌机中混合的，铸成块/毛坯，并经历了减去分离以形成形状的组件。复合材料在长时间的时间内将旋转曲折和其他基于刀片的混合器混合在腐烂和其他基于刀片的混合器中，被倒入，成型为块，并再次经过减去分支。当使用具有敏感的材料时，这些既耗时，浪费又可能是危险的。抗声音混合（RAM）是一种新颖的粉末/粉末/粉末/粉末/粉末/液体/液体/液体混合技术，其潜力可以将材料直接混合到最终的净净（或近乎净值）中，而无需进一步的处理，而无需进一步恢复或重新降低浪费或浪费时间，并浪费时间和时间。 RAM正在与Adefence承包商一起试用，并在迄今表现出色的结果。但是，这种混合技术的建模仍处于起步阶段，尚未被加入，因此不能说是优化的。大量混合（强度，时间，压力温度），材料（粒度，形状，预融合，加法顺序）和工具（形状，组成，混合头空间）参数会影响RAM和Thodus（如果建模）在优化MixingProcess.MixingProcess.Modelling.Modelling和/或试验时会提高对限制，限制和机会的理解。可以识别混合甜点的相位空间，通过避免刀具边缘场景，进一步降低了潜在的潜在处理操作。一旦混合在一起，粉末的混合物仍需要倒入铸模。这是一个更受控的流动环境，但可以导致分层分层和其他形式的DE混合，尤其是在考虑不同大小或密度的颗粒时。