Investigation of Sound Absorption Ability of Hinoki Cypress (Chamaecyparis obtusa) Cubes

Q2 Engineering

Journal of the Korean wood science and technology Pub Date : 2022-09-01 DOI:10.5658/wood.2022.50.5.365

E. Jang

引用次数: 5

Abstract

an improvement in immune that helps ABSTRACT Today, commercialized Hinoki cypress cubes are used for fragrance, humidification, and pillows in Korea. In this study, the sound absorption ability of Hinoki cypress ( Chamaecyparis obtusa ) cubes was examined. The three groups of Hinoki cypress cubes were prepared depending on their dimension (L: 9 × 9 × 9, M: 7 × 7 × 7, S: 4 × 4 × 4 mm). Their sound absorption coefficient was examined after filling 6, 8, 10, and 12 cm height in impedance tubes, respectively. Overall, the sound absorption ability depending on dimension was superior in the M group compared to the L and S groups. Also, as the filling height increased, the sound absorption capacity increased. In sum, noise reduction coefficients (NRC) of all Hinoki cypress cubes were 0.41–0.59. Thus, this research found that Hinoki cypress cubes have a sound-absorbing function.

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日本柏木(Chamaecyparis obtusa)立方体吸声性能的研究

摘要:如今，在韩国，商业化的日红柏木方块被用于香料、保湿剂和枕头。本研究考察了日本柏木(Chamaecyparis obtusa)立方体的吸声能力。根据尺寸大小(L: 9 × 9 × 9, M: 7 × 7 × 7, S: 4 × 4 × 4 mm)制备了3组扁柏立方体。分别在阻抗管中填充6,8,10,12 cm高度后检测其吸声系数。总体而言，M组对尺寸的吸声能力优于L组和S组。随着填充高度的增加，吸声能力也随之增加。结果表明，各树种的降噪系数(NRC)均在0.41 ~ 0.59之间。因此，本研究发现，日木柏木立方体具有吸声功能。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of the Korean wood science and technology Materials Science-Materials Science (miscellaneous)

CiteScore

5.20

自引率

0.00%

发文量

期刊介绍： The Journal of the Korean Wood Science and Technology (JKWST) launched in 1973 as an official publication of the Korean Society of Wood Science and Technology has been served as a core of knowledges on wood science and technology. The Journal acts as a medium for the exchange of research in the area of science and technology related to wood, and publishes results on the biology, chemistry, physics and technology of wood and wood-based products. Research results about applied sciences of wood-based materials are also welcome. The Journal is published bimonthly, and printing six issues per year. Supplemental or special issues are published occasionally. The abbreviated and official title of the journal is ''J. Korean Wood Sci. Technol.''. All submitted manuscripts written in Korean or English are peer-reviewed by more than two reviewers. The title, abstract, acknowledgement, references, and captions of figures and tables should be provided in English for all submitted manuscripts.