The Optimization of the Damping Properties of Structural Components

本研究旨在改善汽车结构和机械部件的减振性能。这是通过利用用于层合结构的各向异性复合材料结构子系统的应力耦合来实现的。子系统为具有弹性面和粘弹性核心层的夹层构件。提出了一种结构设计，它将提高粘弹性层中的应力水平，从而增加能量耗散。这样的设计将被广泛用作噪音和振动控制的工具。该设计的成功将导致汽车行业内外的许多商业应用。一项完整的研究，以确定阻尼子夹层组件的潜力，确定商业应用，并创建适当的设计指南和分析工具，将需要一个广泛的实验和分析计划。建立了适用于阻尼层合板分析的结构理论。将会找到一个具体实际问题的解决方案。将进行参数研究，并确定拟议的次级构成部分的优点。

This research is directed towards improving the damping of automotive structural and mechanical components. This is accomplished by exploiting the stress coupling of anisotropic composite material structural subsystems for use in laminated constructions. The subsystem is a sandwich component with elastic faces and viscoelastic core. A structural design is proposed which will increase the level of stressing and thus energy dissipation in the viscoelastic layers. Such a design would have widespread use as a tool for noise and vibration control. The success of the design will lead to a number of commercial applications both within and out of the automotive industry. A complete study to determine the potential of the damped sandwich subcomponents, to identify commercial applications, and to create appropriate design guidelines and analytical tools would require an extensive experimental and analytical program. An appropriate structural theory for the damped laminate analysis will be formulated. The solution of a specific practical problem will be found. Parametric studies will be performed and the merit of the proposed subcomponent will be established.