Award For Creativity in Engineering

工程创意奖

• 批准号: 9017559
• 负责人: Goodarz Ahmadi
• 金额: $ 9万
• 依托单位: Clarkson University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-08-01 至 1994-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9017559&HistoricalAwards=false
• 关键词: Award; Creativity; Engineering

The proposed research plans to provide a fundamental understanding of the behavior of light secondary attachments and equipment in large space structures under a variety of microgravity loading conditions. One main objective is to develop passive and active vibration control strategy for sensitive on-board equipment. Responses of light secondary systems and equipment aboard large flexible space structures and spacecrafts with or without vibration control devices will be analyzed. These systems and equipment will be subjected to acoustics, on-board moving (rotating) instrumentation, lift-off, micrometeroid impacts and maneuvering and deployment loadings. Deterministic and probabilistic techniques, as well as, digital simulations will be used in these analyses. The nature of tuning of secondary systems to space structures with passive or active vibration control devices will be critically examined. Particular attention will be given to performance analyses of frictional dampers for passive vibration control of equipment aboard space structures.

提出的研究计划为大型空间结构中轻型次级附件和设备在各种微重力载荷条件下的行为提供基本的理解。一个主要目标是开发敏感机载设备的被动和主动振动控制策略。对大型柔性空间结构和航天器上轻型二次系统和设备的振动响应进行了分析。这些系统和设备将受到声学、机载移动（旋转）仪器、升空、微尺度冲击以及机动和部署负载的影响。确定性和概率技术，以及数字模拟将用于这些分析。具有被动或主动振动控制装置的二次系统对空间结构的调谐性质将被严格审查。本文将特别关注用于空间结构上设备被动振动控制的摩擦阻尼器的性能分析。