A New Approach to Vibration Absorption: Delayed Resonator with Piezoelectric Actuators

振动吸收的新方法：带有压电执行器的延迟谐振器

• 批准号: 9415428
• 负责人: Nejat Olgac
• 金额: $ 13.78万
• 依托单位: University of Connecticut
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1994
• 资助国家: 美国
• 起止时间: 1994-09-01 至 1997-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9415428&HistoricalAwards=false
• 关键词: New; Approach; Vibration; Absorption; Delayed

9415428 Olgac A control strategy incorporating position feedback with a designed time delay is used for dynamic suppression of structural vibrations. The delay in feedback leads to an effective vibration absorber which is tunable in real time over an extended frequency range. The piezoelectric actuation and vibration absorption techniques are combined to exhibit high amplitude fidelity over a wide bandwidth. The new vibration absorber is of immediate use in machine tool, aerospace and microprocessor disk storage industries. Pratt and Whitney is a cosponsor of this GOALI project in view of a need to eliminate high frequency gear box oscillations. Piezoelectric actuation with delayed resonator techniques are specially suited for such implementations. ***

9415428 OGAC将位置反馈与设计的时延相结合的控制策略被用于结构振动的动态抑制。反馈中的延迟导致了有效的减振器，该减振器在扩展的频率范围内可实时调节。压电驱动和减振技术相结合，在很宽的带宽上显示出高幅度的保真度。这种新型减振器可立即用于机床、航空航天和微处理器磁盘存储行业。考虑到消除高频齿轮箱振荡的需要，普拉特和惠特尼是这一目标项目的共同发起人。采用延迟谐振器技术的压电式驱动特别适合于这种实现。***