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Monday, July 8 • 12:20 - 12:40
ACTIVE CONTROL OF PRESSURE PULSATION IN MARINE HYDRAULIC SYSTEM USING MUTIPLE SECONDARY SOURCES

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The low-frequency pulsation of the marine hydraulic system is transmitted along the pipe, which can create structural vibration. For the low-frequency pulsation which is difficult to control by passive style, a by-pass secondary source is designed and pulsation control re-search by active style is carried out. The designed by-pass secondary source is driven by pie-zoelectric ceramics, which is compact. The active control system of the hydraulic system is built with two secondary sources and the FxLMS adaptive algorithm is used to control the pul-sation. The experimental result shows that the by-pass secondary source can effectively at-tenuate the low-frequency pulsation at multi-frequencies and reduce the vibration energy transmitted with the fluid.

Moderators
avatar for Alain Berry

Alain Berry

Professor, Université de Sherbrooke
avatar for Philippe-Aubert Gauthier

Philippe-Aubert Gauthier

Professor, Groupe Acoustique Université de Sherbrooke, Université de Sherbrooke

Authors

Monday July 8, 2019 12:20 - 12:40 EDT
Westmount 6
  T02 Act. noise & vib. cntrl., RS01 Active cntrl of snd & vibr