Engineering Research Equipment Grant: Dynamic Signal Analyzer

本附录是对美国国家科学基金会倡议“促进 残疾科学家和工程师奖”。 设备 包括特殊的访问台，以容纳由 早些时候的设备赠款，和Vax图形平板电脑，以解决PI的 手指灵活性困难。 该设备项目是 补充提供设备，以实验研究 结构的非线性振动行为 设备A 动态信号分析仪，从物理结构中收集数据 进行振动测试。 非线性振动已经被研究 在过去广泛。 这些研究集中在长期 时间响应，表现出的行为后很长一段时间的瞬变 腐烂了 这个项目研究了运动是如何演变的， 瞬变的衰减。 两个项目受益于使用 设备. 第一个重点是悬臂梁的振动 梁理论上已经提出了 危险的振动对于某些类型的干扰。 这个项目 会试图证实这些说法 第二个项目是 与旋转系统有关，其中理论上的要求也 严重的非线性行为。 这些索偿要求将受到 通过实验研究。

This supplement is responsive to the NSF initiative "Facilitation Awards for Handicapped Scientists and Engineers". The equipment comprises special access desks to house equipment provided by an earlier equipment grant, and a Vax Graphic tablet to address the PI's finger dexterity difficulties. The equipment project being supplemented provides equipment to experimentally investigate the nonlinear oscillatory behavior of structures. The equipment, a dynamic signal analyzer, collects data from physical structures undergoing vibration tests. Nonlinear oscillations have been studied extensively in the past. These studies have focused on long term time response, the behavior exhibited long after transients have decayed. This project investigates how the motion evolves during the decay of the transients. Two projects benefit from the use of the equipment. The first focuses on the vibration of a cantilevered beam. Theoretical claims have been made for the potential of dangerous vibrations for certain types of disturbances. This project will attempt to substantiate these claims. A second project is concerned with rotating systems where theoretical claims have also been made for serious nonlinear behavior. These claims will be investigated through experimentation.