title: Reduction of infrasounds in machines with hydrostatic drive.
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.
authors: Department of Hydraulic Machines and Systems, Institute of Machines Design and Operation, Wrocław University of Technology, Poland.
authors: Zygmunt
authors: Z
authors: Kudźma
authors: Michał
authors: M
authors: Stosiak
mesh_terms: D000054:Acceleration; D000162:Acoustics; D004548:Elasticity; D004738:Engineering / Q000295:instrumentation*; D006801:Humans; D009622:Noise; D011312:Pressure; D015203:Reproducibility of Results; D014732:Vibration