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

9415428 Olgac将位置反馈与设计的时间延迟相结合的控制策略用于结构振动的动态抑制。反馈中的延迟导致有效的振动吸收器，其在扩展的频率范围上可在真实的时间内调谐。压电致动和振动吸收技术相结合，在很宽的带宽表现出高的振幅保真度。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。鉴于需要消除高频齿轮箱振荡，普惠公司是该GOALI项目的共同发起人。具有延迟谐振器技术的压电致动特别适合于这种实施方式。 ***

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. ***