A stress wave propagation velocity model of standing trees

LIU Guanglin; LI Guanghui; SUN Ye; FANG Yiming

doi:10.11833/j.issn.2095-0756.2015.01.003

Volume 32 Issue 1

Jan. 2015

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LIU Guanglin, LI Guanghui, SUN Ye, FANG Yiming. A stress wave propagation velocity model of standing trees[J]. Journal of Zhejiang A&F University, 2015, 32(1): 18-24. doi: 10.11833/j.issn.2095-0756.2015.01.003

Citation:

LIU Guanglin, LI Guanghui, SUN Ye, FANG Yiming. A stress wave propagation velocity model of standing trees[J]. Journal of Zhejiang A&F University, 2015, 32(1): 18-24. doi: 10.11833/j.issn.2095-0756.2015.01.003

A stress wave propagation velocity model of standing trees

doi: 10.11833/j.issn.2095-0756.2015.01.003

LIU Guanglin^1,2,
LI Guanghui^{1,2
,
,},
SUN Ye^1,2,
FANG Yiming^1,2

1.
School of Information Engineering, Zhejiang A & F University, Lin’an 311300, Zhejiang, China;
2.
Zhejiang Provincial Key Laboratory of Intelligent Monitoring in Forestry and Information Technology, Zhejiang A & F University, Lin’an 311300, Zhejiang, China

Received Date: 2014-02-26
Rev Recd Date: 2014-05-14
Publish Date: 2015-02-20

Abstract

To improve the feasibility of nondestructive stress wave testing of standing trees, stress wave propagation in healthy trees was analyzed using linear regression analysis and a mathematical model of the stress wave propagation velocity was established. Several experiments were carried out for healthy trees of different species, and simultaneously the tomogram imaging technology was used to validate the proposed propagation velocity model of the stress wave. Experimental results of healthy trees showed that the linear regression relationship between the direction angle , the velocity （vT） for the propagation direction, and the radial velocity （vR） could be expressed as vT/vR－0.22 + 1, and the coefficient of determination R2＞0.95, which demonstrated that the proposed mathematical model was correct. ［Ch, 6 fig. 3 tab. 12 ref.］
- wood science and technology,
- stress wave,
- velocity model,
- nondestructive testing

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通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

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A stress wave propagation velocity model of standing trees

1. School of Information Engineering, Zhejiang A & F University, Lin’an 311300, Zhejiang, China;

2. Zhejiang Provincial Key Laboratory of Intelligent Monitoring in Forestry and Information Technology, Zhejiang A & F University, Lin’an 311300, Zhejiang, China

Received Date: 2014-02-26

Rev Recd Date: 2014-05-14

Publish Date: 2015-02-20

Key words:

Abstract: To improve the feasibility of nondestructive stress wave testing of standing trees, stress wave propagation in healthy trees was analyzed using linear regression analysis and a mathematical model of the stress wave propagation velocity was established. Several experiments were carried out for healthy trees of different species, and simultaneously the tomogram imaging technology was used to validate the proposed propagation velocity model of the stress wave. Experimental results of healthy trees showed that the linear regression relationship between the direction angle , the velocity （vT） for the propagation direction, and the radial velocity （vR） could be expressed as vT/vR－0.22 + 1, and the coefficient of determination R2＞0.95, which demonstrated that the proposed mathematical model was correct. ［Ch, 6 fig. 3 tab. 12 ref.］

A stress wave propagation velocity model of standing trees

doi: 10.11833/j.issn.2095-0756.2015.01.003

Abstract

References

Proportional views

通讯作者: 陈斌, bchen63@163.com

Related

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