利用纤维板的振动参数预测静曲强度的研究  

Predicting the Modulus of Rupture by Using the Vibration Parameters of the Fiberboard

作　　者：池德汝[1] 童昕[2] 林新青 

机构地区：[1]福建工程学院机电及自动化工程系,福建福州350014 [2]华侨大学机电及自动化学院,福建泉州362021 [3]福建福人木业有限公司,福建福州350009

出　　处：《闽江学院学报》2006年第5期50-53,共4页Journal of Minjiang University

基　　金：福建省自然科学基金资助项目(E0510020)

摘　　要：利用弯曲振动法测取了纤维板的比动态弹性模量E/P、声辐射阻尼系数(E/P3)^(1/2)、声阻(Eρ)^(1/2)及(E/ρ)^(1/2)、Eρ等振动参数,并利用回归方法分析了这些参数与静曲强度的相关性．结果表明:以纤维板的声阻抗(或Eρ)为单变量与静曲强度建立的一元线性回归,回归效果较好,可适用于纤维板静曲强度的预测．The vibration parameters of the fiberboard, including specific dynamic Young＇s modules E/p,acoustic radiation damping √E/p^3, acoustic impedance √Ep,√E/p and Ep, are measured by flexural vibration. The relative relationship among these parameters stated above and the modulus of rupture are analyzed by use of the regressive analysis. The linearly monadic regressive equation is derived by using the acoustic impedance variable （or Ep） and the modulus of rupture, The regressive results demonstrated that the regressive method proposed in the paper is effective to predict the modulus of rupture for the fiberboard.

关 键 词：振动参数 静曲强度 纤维板 

分 类 号：TS653.6[轻工技术与工程] S781.21[农业科学—木材科学与技术]