Vestad Håvard, Steinert Martin
Department of Mechanical and Industrial Engineering, Norwegian University of Science and Technology, Norway.
HardwareX. 2022 Jan 10;11:e00264. doi: 10.1016/j.ohx.2022.e00264. eCollection 2022 Apr.
Mechanical vibrations greatly influence sensitive instruments and experiments, yet they are unavoidable. Commercial solutions that mitigate the transfer of mechanical vibrations into experiments and instruments are often associated with high prices and big footprints and are not readily available for low investment explorative testing, experimenting, and prototyping. In this paper, an open-source design for a vibration isolation chamber is presented that is constructed from readily available components and hardware such as off-the-shelf furniture and honey. An extensive guide on how to construct the simple spring-damper-based passive vibration isolation chamber is presented, and its performance is validated using a high-precision seismic accelerometer. The vibration isolation system consists of steel springs and dashpots made of steel spheres suspended in high viscosity honey. The system resonates at 1.2 Hz and successfully mitigates the transfer of vibrations of frequencies determined to be of critical interest in the 5-20 Hz range. The well-performing system has proven to be an invaluable asset in the laboratory toolbox when sensitive experiments are carried out and has already been used in a multitude of projects. The design is shared so that others may also benefit from this tool.
机械振动会对精密仪器和实验产生极大影响，但它们却难以避免。减轻机械振动向实验和仪器传递的商业解决方案往往价格高昂且占地面积大，对于低投入的探索性测试、实验和原型制作而言并不容易获得。本文介绍了一种用于隔振室的开源设计，它由现成的组件和硬件构建而成，如现成的家具和蜂蜜。文中给出了一份关于如何构建基于简单弹簧 - 阻尼器的被动隔振室的详尽指南，并使用高精度地震加速度计对其性能进行了验证。该隔振系统由钢弹簧和由悬浮在高粘度蜂蜜中的钢球制成的阻尼器组成。该系统在1.2赫兹处发生共振，并成功减轻了频率在5 - 20赫兹范围内被确定为关键频率的振动传递。当进行敏感实验时，这个性能良好的系统已被证明是实验室工具箱中一项非常宝贵的资产，并且已经在众多项目中得到应用。该设计予以分享，以便其他人也能从这个工具中受益。
