文献类型：期刊文献

英文题名：Acoustic and viscoelastic properties of string instrument fretboards made of radiata pine by densification and impregnation with furfuryl alcohol resin

作者：Liu, Meihong[1] Lyu, Shaoyi[2] Cai, Liping[3] Lei, Yafang[1] Peng, Limin[2] Yan, Li[1] Lyu, Jianxiong[2]

第一作者：Liu, Meihong

通信作者：Yan, L[1];Lyu, J[2]

机构：[1]Northwest A&F Univ, Forestry Coll, Dept Wood Sci & Technol, Yangling 712100, Shaanxi, Peoples R China;[2]Chinese Acad Forestry, Hunan Collaborat Innovat Ctr Effect Utilizing Wood, Res Inst Wood Ind, Beijing 100091, Peoples R China;[3]Nanjing Forestry Univ, Coll Mat Sci & Engn, Nanjing 210037, Jiangsu, Peoples R China

年份：2023

外文期刊名：EUROPEAN JOURNAL OF WOOD AND WOOD PRODUCTS

收录：;EI(收录号：20234114850804);WOS:【SCI-EXPANDED(收录号:WOS:001075456200001)】；

基金：The authors acknowledge financial support from doctoral research start-up fee of Northwest A & F University (Grant No. 2452022123).

语种：英文

外文关键词：Acoustic impedance - Elastic moduli - Viscoelasticity - Wood

摘要：In this study, radiata pine wood was impregnated with furfuryl alcohol (FA) resin and radially compressed at compression ratios (CRs) of 17%, 33%, and 50%, respectively, to improve the acoustic and viscoelastic performance. The optimum CR was selected by analyzing the properties of FA-densified modified woods with different CRs. The storage modulus and loss factors of the FA-densified modified woods with CRs of 17%, 33%, and 50% were better than those of fretboard wood. The fretboard wood had an extremely high dynamic modulus of elasticity (D '>=\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\ge$$\end{document} 16.22 GPa) and dynamic shear modulus (G '>=\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\ge$$\end{document} 2.23 GPa). The D ' and G ' of the FA-densified modified wood with a CR of 50% were 25.44 GPa and 4.08 GPa, respectively, which are better than those of the fretboard wood. The common fretboard wood had a low sound velocity (upsilon), small specific dynamic elastic modulus (Esp\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${E}_{sp}$$\end{document}), small sound radiation coefficient (R), and low acoustic conversion efficiency (ACE), along with a high acoustic impedance (omega) and high sound quality factor (Q-1). The values of upsilon, Esp\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${E}_{sp}$$\end{document}, R, ACE, omega, and Q-1 of the FA-densified modified wood with a CR of 50% were 4563 m/s, 19.9 GPa, 3.49 m3 Pa-1 s-3, 253, 5.70 106 (Pa s m-1), and 13.80 x\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\times$$\end{document} 10-3, respectively, meeting the performance requirements for fretboards and demonstrating the potential to replace fretboard wood in fretboard manufacturing. This research promotes the application of a fast-growing plantation wood for the manufacture of musical instruments and provides a good platform for its high-value utilization.