Acquisition of Enhanced Instrumentation for Dynamic Systems Analysis

采购用于动态系统分析的增强型仪器

• 批准号: 9724360
• 负责人: Christopher H. Jenkins
• 金额: --
• 依托单位: South Dakota School of Mines and Technology
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1997
• 资助国家: 美国
• 起止时间: 1997-10-01 至 2000-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9724360&HistoricalAwards=false
• 关键词: Acquisition; Enhanced; Instrumentation; Dynamic; Systems

9724360 Jenkins Highly compliant (flexible) structures, such as membranes, must use noncontact methods of vibration sensing, due to the extreme thinness of the material. Full-field dynamical descriptions of large civil or mechanical structures, or vibration measurements in hostile environments, are other example where traditional methods of analysis are insufficient. This proposal seeks to acquire a laser vibrometer, which is a multi-point measurement system which can be used for model analysis, design studies, nondestructive testing, and system identification. The system uses laser doppler interferometry to make accurate noncontact vibration measurements on complex systems without the drawbacks of conventional vibration testing techniques. ***

9724360 Jenkins高顺应性（柔性）结构，如薄膜，必须使用非接触式的振动传感方法，由于材料的极薄。 大型土木或机械结构的全场动态描述，或恶劣环境中的振动测量，是传统分析方法不足的其他例子。 该建议旨在获得激光振动计，这是一个多点测量系统，可用于模型分析，设计研究，无损检测和系统识别。 该系统采用激光多普勒干涉技术对复杂系统进行精确的非接触式振动测量，而没有传统振动测试技术的缺点。 ***