Exploratory study of using near field acoustic levitation to separaate contacting surfaces

利用近场声悬浮分离接触表面的探索性研究

• 批准号: EP/F04979X/1
• 负责人: Tadeusz Stolarski
• 金额: $ 22.95万
• 依托单位: Brunel University London
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2008
• 资助国家: 英国
• 起止时间: 2008 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FF04979X%2F1
• 关键词: Exploratory; study; using; near; field

The separation of interacting surfaces with a thin film of air (lowest possible resistance to motion and highest smoothness of motion) is of fundamental importance to the operation of high-precision motion systems such as lithography, hard disc drives, contact-less transportation of silicon chips, ultra-high-speed cameras. Currently available methods to secure separation are either unsuitable for the clean room environment required by these systems or they demand to much space which is unavailable in certain micro-scale devices. Clearly, a new method of creating separation of interacting surfaces is required and this project has a potential for a real breakthrough. It is proposed that the phenomenon of near-field acoustic levitation is harnessed to create the state of physical separation between two interaccting surfaces. No bulky compressed air installations are required to achieve this as the contact utilising near-field acoustic levitation will have self-lifting capability.The project aims at combining existing and new knowledge generated during the course of the project to put forward rules for designing a self-lifting contact which could be used in a real life applications. It is strongly believed that on completion of the project a new class of self-levitating sliding contacts, important for high-precision motion applications, will emerge. This will have a considerable impact on new and emerging high precision engineering technologies.

用空气薄膜将相互作用的表面分离（尽可能低的运动阻力和最高的运动平滑度）对于高精度运动系统的操作至关重要，例如光刻、硬盘驱动器、硅芯片的非接触式运输、超高速相机。目前可用的确保分离的方法要么不适合这些系统所需的洁净室环境，要么它们需要在某些微尺度装置中不可用的大空间。显然，需要一种新的方法来创建相互作用表面的分离，并且该项目具有真实的突破的潜力。提出利用近场声悬浮现象在两个相互作用表面之间产生物理分离状态。由于利用近场声悬浮的触头将具有自举能力，因此不需要庞大的压缩空气装置即可实现这一目标。该项目旨在结合项目过程中产生的现有知识和新知识，为设计可用于真实的应用的自举触头提出规则。人们坚信，在该项目完成后，一类新的自悬浮滑动接触，高精度运动应用的重要性，将出现。这将对新兴的高精度工程技术产生重大影响。