JSME International Journal Series B Fluids and Thermal Engineering
Online ISSN : 1347-5371
Print ISSN : 1340-8054
ISSN-L : 1340-8054
Study on an Active Accumulator : Active Control of High-Frequency Pulsation of Flow Rate in Hydraulic Systems
Shinichi YOKOTAHisashi SOMADAHirotugu YAMAGUCHI
Author information
JOURNALS FREE ACCESS

1996 Volume 39 Issue 1 Pages 119-124

Details
Abstract

Flow rate pulsation through pipelines due to hydraulic components is one of the most common sources of vibration and noise in hydraulic control systems. Among the flow rate pulsations caused by hydraulic piston pumps, which are commonly called fluid-borne noise, low-frequency pulsation can be easily absorbed and reduced by a passive element such as an accumulator. However, it is difficult to effectively reduce the high-frequency pulsation such as pulses using only passive elements. This paper concerns an active accumulator which is proposed and newly fabricated. It is driven directly by multilayered PZT devices to reduce the flow rate pulsation produced by hydraulic components in the high-frequency region. The active accumulator has the potential to actively reduce and cancel the variation in the high-frequency flow rate pulsation due to hydraulic piston pumps by producing and using inverse-phase flow by making use of fast-acting piezo-actuators.

Information related to the author
© The Japan Society of Mechanical Engineers
Previous article Next article
feedback
Top