Open AccessImpact of threaded openings in composite structures upon sound absorption
Author(s) -
В. Ф. Макаров,
В. Ф. Макаров,
В Я Модорский,
Vladimir Modorsky,
Ринат Абзаев,
Ринат Абзаев,
Игорь Койнов,
Igor Koynov,
Александр Дударев,
Alexandr Dudarev,
Daria Khrolikova,
Daria Khrolikova
Publication year - 2019
Publication title -
naukoëmkie tehnologii v mašinostroenii
Language(s) - English
Resource type - Journals
ISSN - 2223-4608
DOI - 10.30987/article_5d9dc9b8cfaa96.66857417
Subject(s) - composite number , sound (geography) , acoustics , absorption (acoustics) , materials science , resonator , structural engineering , engineering , composite material , physics , optoelectronics
There is considered and offered an idea of threaded opening use instead of smooth openings in single-layered sound absorbing structures (SAS). A procedure for a numerical modeling of a type and opening shape impact in cells of single-layered SAS upon sound absorption using Ansys CFX program package is described. The investigations are carried out at different frequencies in the throat of a resonator of boards made of VKU-39 composite.