CAREER: Advanced Nanostructured Damping Materials

职业：先进纳米结构阻尼材料建议编号：CMS-0347604主要研究员：尼基尔·A·科拉特卡机械、航空航天和核工程系，伦斯勒理工学院机械、航空航天和核工程系，110第8街，特洛伊，NY-12180。该项目的目标是开发一种新型纳米结构阻尼材料，以克服传统粘弹性聚合物的限制。更具体地说，技术目标是：a)合成新型碳纳米管结构以研究纳米管系统中界面摩擦减振的基本机理，b)表征纳米管薄膜形态对阻尼和刚度响应的影响，c)研究阻尼对环境和操作条件的敏感性，以及d)开发和实验验证作为纳米管薄膜形态和操作条件的函数来预测系统级减振行为所需的设计工具。为了确保各种动力部件的稳定性和较低的振动载荷，需要结构减振。这一研究成果将有利于一系列结构体系的性能、成本、安全性和可靠性。该项目还将产生强大的教育影响，因为它展示了定向组装纳米级构建块以创造与传统系统相比具有极高性能的新功能材料的令人兴奋的可能性。

CAREER: Advanced Nanostructured Damping MaterialsProposal Number: CMS- 0347604Principal Investigator: Nikhil A. KoratkarDepartment of Mechanical, Aerospace and Nuclear Engineering,Rensselaer Polytechnic Institute, 110 8th Street, Troy, NY- 12180.The goal of this project is to develop a new class of nanostructured damping materials to overcome the limitations of traditional viscoelastic polymers. More specifically, the technical objectives are: a) synthesize novel carbon nanotube architectures to study the fundamental mechanisms for interfacial friction damping in nanotube systems, b) characterize the effect of nanotube film morphology on the damping and stiffness response, c) study sensitivity of damping to environmental and operating conditions, and d) develop and experimentally validate the design tools needed to predict system level damping behavior as a function of nanotube film morphology and operating conditions. Structural damping is required to ensure stability and low vibratory loads in a variety of dynamic components. The outcome of this research will benefit the performance, cost, safety and reliability of a range of structural systems. This project will also have a strong educational impact since it demonstrates the exciting possibilities that exist for directed assembly of nanoscale building blocks to create new functional materials that have vastly superior properties compared with traditional systems.