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首页> 外文会议>International Conference on Fluid Power Transmission and Control(ICFP' 2005); 20050405-08; Hangzhou(CN) >A Novel Piezoelectric Hydraulic Pump
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A Novel Piezoelectric Hydraulic Pump

机译：新型压电液压泵

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摘要

In order to get higher frequency response property, a novel piezoelectric pump is designed. It can be utilized to reduce the pulsation through connecting with noise pump bypass to reduce the flow pulsation by active control, which fluctuation frequency is up to 1000Hz. It also can be used in the integrated actuator, to drive the cylinder directly. Although piezoelectric stack actuators are capable of producing large forces at higher bandwidth, the conventional check valves that operate at relatively low frequencies of less than 200 Hz, and prevent full exploitation of the bandwidth of piezoelectric pumps. The novel piezoelectric hydraulic pump designed excludes any check valves. It produces a pulsating flow according to the voltages exerted on each piezoelectric stack and can function at very high frequencies. The paper focuses on the design, analysis, modeling and simulation of the new pump. An analytical model is developed for the pump, and simulation results, potential applications and future work are discussed.
机译：为了获得更高的频率响应特性，设计了一种新型的压电泵。通过与噪声泵旁路连接可减少脉动，通过主动控制减少脉动，脉动频率高达1000Hz。它也可用于集成执行器中，以直接驱动气缸。尽管压电叠层致动器能够在较高的带宽上产生较大的力，但是常规的止回阀以低于200 Hz的相对较低的频率工作，并阻止了压电泵带宽的充分利用。设计新颖的压电液压泵不包括任何止回阀。它根据施加在每个压电堆栈上的电压产生脉动流，并可以在非常高的频率下工作。本文着重于新型泵的设计，分析，建模和仿真。为泵开发了一个分析模型，并讨论了仿真结果，潜在的应用和未来的工作。

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