Reducing low-frequency vibration in hydraulic systems by means of Helmholtz resonators

Autor:	S. V. Gorin, M. V. Kuklin
Rok vydání:	2010
Předmět:	Engineering business.industry Mechanical Engineering Pipeline (computing) Acoustics Vibration source Low frequency vibration Industrial and Manufacturing Engineering Vibration Resonator symbols.namesake Mockup Helmholtz free energy symbols Hydraulic machinery business
Zdroj:	Russian Engineering Research. 30:493-495
ISSN:	1934-8088 1068-798X
DOI:	10.3103/s1068798x10050138
Popis:	Low-frequency damping systems for the pressure pulsations in a pipeline system are investigated in a mockup of the fourth loop of a nuclear power plant. The acoustic characteristics of Helmholtz resonators are calculated. Acoustic tests are conducted to reduce the vibration at the blade frequencies of the circulation pump. It is shown that the efficiency of such structures depends both on the accuracy with which the resonator eigenfrequencies are matched to the blade frequency of the vibration source and on the resonator location within the pipeline system.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::a9d83cd2ec7b4fdddb4430035d95415c https://doi.org/10.3103/s1068798x10050138 Zobrazit plný text záznamu Full text from SpringerLink