Related Experiment Video
Updated: May 8, 2026

Experiments on Ultrasonic Lubrication Using a Piezoelectrically-assisted Tribometer and Optical Profilometer
Published on: September 28, 2015
Reduction of infrasounds in machines with hydrostatic drive
Zygmunt Kudźma1, Michał Stosiak
1Department of Hydraulic Machines and Systems, Institute of Machines Design and Operation, Wrocław University of Technology, Poland.
Abstract:
Some hazards posed by the operation of hydraulic systems, connected with low-frequency vibrations and noise are presented. Special attention is focused on infrasounds. The sources of low-frequency vibrations and noise and ways of reducing them are indicated. An original solution ensuring the effective reduction of vibrations and noise in a wide frequency range, i.e., a wide-band damper of pressure fluctuations, also performing the function of an acoustic filter, is proposed. The effectiveness of the damper was confirmed by the results of laboratory tests and tests carried out on engineering machines working in real conditions.
Related Concept Videos
Application of Pascal's Law
Hydraulic systems are used to operate automotive brakes, hydraulic jacks, and numerous other mechanical systems. We can derive a relationship between the forces in a simple hydraulic system by applying...
Hydraulic Jump
Design Example: Deciding Thickness of Lubricating Fluid in a Shaft
To calculate the required thickness of the lubricant layer, the tangential velocity at the shaft's surface must first be determined. This velocity is calculated by converting the rotational speed to angular velocity...
Applications of Integration to Find Hydrostatic Pressure
Hydrostatic Pressure Force on a Curved Surface
Sound Waves: Interference
