SGER: An Analytical Framework for a Novel Class of Complex Vibration Dampers

SGER：新型复杂减振器的分析框架

• 批准号: 0840028
• 负责人: John McCoy
• 金额: --
• 依托单位: Catholic University of America
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2008
• 资助国家: 美国
• 起止时间: 2008-07-15 至 2009-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0840028&HistoricalAwards=false
• 关键词: SGER; Analytical; Framework; Novel; Class

The research objective of this award is to develop methods for modeling and design of complex vibration dampers (CVDs). A CVD consists of a large number of light vibration elements to be attached to a small region of a dynamical system to mitigate damage that would otherwise obtain because of the action of a complex forcing. The research will result in an analytical framework to provide the basis for prediction models, and thereby design strategies, for a broad range of applications. The research approach progresses from the protection of relatively simple structural elements, e.g. beams and plates, subject to idealized external forces to more complicated structural systems, e.g. structural frames, subject to highly complex and uncertain forces acting. Deliverables include an increased understanding of the role of CVDs in controlling the introduction of energy to a dynamical system by a complex external forcing; a parameterization of the asymptotic regime that defines the potential uses of CVDs, distinguishing sub-regimes for which the potential is greatest; and, the identification of system measures for the purpose of design. If successful, the results of this research will provide an opportunity for the design of a new class of damage mitigating systems, for a range of structural systems and forcing conditions. One possible application would be mitigating the damage of a civil engineering structure, a high-rise building or bridge, subject to an earthquake force. Another would be enhancing the crash worthiness of vehicles. Still another would be reducing the severity of the interior of a military transport vehicle, subject to the blast force of a nearby explosion. Successful demonstration of the efficacy of CVDs for any and all of these applications will be disseminated to the appropriate engineering community for commercial exploitation.

该奖项的研究目标是开发复杂振动阻尼器（CVD）的建模和设计方法。CVD由大量的光振动元件组成，这些光振动元件被附接到动力系统的小区域，以减轻否则由于复杂强迫的作用而获得的损害。该研究将产生一个分析框架，为预测模型提供基础，从而为广泛的应用设计策略。研究方法从保护相对简单的结构元件，如梁和板，受到理想化的外力到更复杂的结构系统，如结构框架，受到高度复杂和不确定的力作用。可解释的内容包括：通过复杂的外部强迫，对心血管疾病在控制能量引入动力系统中的作用有了更多的了解;定义心血管疾病潜在用途的渐近制度的参数化，区分潜在最大的子制度;以及，为设计目的确定系统措施。如果成功，这项研究的结果将提供一个机会，为一系列的结构系统和强迫条件下的一类新的损害减轻系统的设计。一种可能的应用是减轻土木工程结构、高层建筑或桥梁在地震力作用下的损坏。另一个是提高车辆的耐撞性。还有一种方法是降低军用运输车内部的严重性，以承受附近爆炸的冲击力。CVD对任何和所有这些应用的有效性的成功演示将传播给适当的工程界进行商业开发。