Pressure pulsation, created by the operation of hydraulic pumps in a fluid power system, is one of the primary causes of noise issues from hydraulic machinery. The wave energy resulting from such pulsation propagates in both the wall and the fluid of the flow pipes associated with the fluid power systems, inducing fluidborne vibration of the pipe s and the consequent noise radiated from the pipes. The pressure pulsation can be controlled using many available techniques, including the design of quiet fluid power pumps, active control (e.g. by implementing fluid wave actuators) and passive control treatments (e.g. by installing pulsation suppressor/dampener). This paper presents a case study of noise control for a series of marine hydraulic mooring winch systems installed on a marine barge, which emit excessive noise levels during operation. The installation of passive pulsation suppressors was proposed as the most practical solution to control pulsation from the fluid power units and the consequent excessive noise radiation from the flow pipes, considering a number of factors such as cost, implementation schedule and complexity, as well as intrusion to the system.
[1]
Christopher Robert Fuller,et al.
Fluid wave actuator for the active control of hydraulic pulsations in piping systems
,
1999
.
[2]
Liselott Ericson,et al.
On Fluid Power Pump and Motor Design : Tools for Noise Reduction
,
2012
.
[3]
Christopher Robert Fuller,et al.
Active control of pressure pulsations in piping systems
,
1998
.
[4]
Fumio Inada,et al.
Flow Induced Vibrations : Classifications and Lessons from Practical Experiences
,
2008
.
[5]
de Caf Christ Jong,et al.
Analysis of pulsations and vibrations in fluid-filled pipe systems
,
1994
.