I-Corps: Translation Potential of Portable Tuned Mass Dampers to Reduce Vibration Serviceability Issues in Architectural Structures

I-Corps项目的更广泛影响是便携式调谐质量阻尼器（PTMD）的开发。为了减少建筑结构的过度振动，工程师可以增加结构刚度或质量，主要是在地板水平。这两种选择都大大增加了总的建筑成本。这些选择也会导致可持续性问题;根据联合国全球建筑和建设联盟计划，全球温室气体排放量的39%是由于建筑施工。地板建设可以产生惊人的10%的温室气体排放量，这是整个航空业每年产生的温室气体的五倍。PTMD可以大幅降低建筑成本，并有助于减少多余地板建筑材料产生的温室气体排放。这个I-Corps项目利用体验式学习加上对行业生态系统的第一手调查来评估该技术的翻译潜力。该解决方案是基于便携式调谐质量阻尼器（PTMD）的发展，以控制建筑结构的振动。不断变化的建筑景观，包括使用更高强度的建筑材料，如钢和混凝土，建筑师设计更优雅，细长，开放式和大跨度结构的趋势，以及在医院和研究机构中更常见的高灵敏度设备的使用，导致建筑结构的振动适用性问题日益严重。PTMD由重量板、弹簧和钢板制成，重量板、弹簧和钢板占结构总重量的一小部分，通过在结构的相反方向上移动，可以大大减少过度振动。PTMD设备是便携式的，并且可以直接放置在地板上或安装在地板通风系统内。此外，PTMD可以使用智能手机应用程序进行调整，而不需要高技术人员。该奖项反映了NSF的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。

The broader impact of this I-Corps project is the development of Portable Tuned Mass Dampers (PTMD). To reduce excessive vibrations of architectural structures, engineers can either increase the structural stiffness or mass, mainly at the floor levels. Both these options substantially increase overall construction costs. These options also result in sustainability issues; According to the United Nations Global Alliance for Building and Construction Program, 39% of all global greenhouse gas emissions are due to building construction. The floor construction can generate a staggering 10% of greenhouse emissions, which is five times more than what is produced by the entire aviation industry each year. PTMDs can substantially reduce construction costs and help with the reduction of the greenhouse gas emissions produced by excess floor construction materials. This I-Corps project utilizes experiential learning coupled with a first-hand investigation of the industry ecosystem to assess the translation potential of the technology. The solution is based on the development of Portable Tuned Mass Dampers (PTMD) to control vibrations in architectural structures. The changing landscape of architecture, including the use of higher strength building materials such as steel and concrete, the tendency of architects to design more elegant, slender, open-plan and long-span structures, and the more common use of highly sensitive equipment in hospitals and research facilities, has resulted in a growing problem of vibration serviceability of architectural structures. A PTMD is made of weight plates, springs, and steel plates with a fraction of the structure’s total weight which can substantially reduce excessive vibrations by moving in the opposite direction of the structure. The PTMD device is portable and can be placed directly on a floor or installed within a floor plenum. Additionally, PTMD can be tuned using a smartphone application without the need for highly technical personnel.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.