针叶树材细胞破壁力的理论计算

杨冬霞; 马岩; 杨春梅

doi:10.3969/j.issn.1000-2006.2013.03.018

针叶树材细胞破壁力的理论计算

杨冬霞,马岩,杨春梅

南京林业大学学报（自然科学版） ›› 2013, Vol. 37 ›› Issue (03) : 97-102.

PDF(1056285 KB)

国家林草科技领军期刊
中国精品科技期刊
中国高校百佳科技期刊
江苏省新闻出版政府奖期刊奖
RCCSE林学权威期刊（A+）
CSCD核心期刊
Scopus数据库收录期刊
中文核心期刊
SCD核心期刊

作者加群：102861116

微信公众号：南京林业大学学报

高级检索

PDF(1056285 KB)

南京林业大学学报（自然科学版） ›› 2013, Vol. 37 ›› Issue (03) : 97-102. DOI: 10.3969/j.issn.1000-2006.2013.03.018

研究论文

针叶树材细胞破壁力的理论计算

杨冬霞^1,2,马岩^1*,杨春梅¹

作者信息 +

Theoretical calculation of coniferous wood cell wall

YANG Dongxia^1,2, MA Yan^1*, YANG Chunmei¹

Author information +

文章历史 +

摘要

依据结构力学和有限元的相关理论,建立12根杆的六边形桁架结构模型来模拟针叶树材的细胞结构,其中,外部6根杆模拟细胞壁,内部6根杆模拟细胞内部压力。建立了单一细胞受力模型并对其进行受力分析计算,得出当作用在节点上的力为单位力时,杆单元的最小拉应力大于木材顺纹抗拉强度。依据细胞壁的结构特点将杆单元的拉应力与传统计算木材切削应力相比较,并以木材顺纹抗拉强度作为检验细胞断裂的准则,从而得出针叶材细胞破壁的大小。以兴安落叶松锯屑为试验原料进行超细木粉加工,试验结果表明应用结构力学和有限元法进行的细胞微观力学结构分析是可行,在相应切削力的作用下针叶材细胞能够破壁。

Abstract

According to the relevant theory of finite element and structural mechanics, a structure mode of 12 levers hexagon truss model was built to simulate the cellular structure. Six outer levers in hexagon truss model were applied to simulate the cell wall pressure and 6 inner levers to simulate the cell internal pressure. So a single cell stress model was established to analyze its stress. Model results showed that when the size of the force acting on the node reached the unit force, the minimum tensile stress of the bar element was bigger than the tensile strength of the wood grain. According to the structural characteristics of the cell wall, in this paper the bar element tensile stress was compared with the tradition calculations cutting stress. If the tensile strength parallel to grain was used as the criteria to test the rupture failure of cell, the softwood cells disruption force could be obtained. Using Larix gmelinii sawdust as the test material to process superfine wood flour, the model results of the experiment showed that analysis structure of cell micromechanics with the method of finite element and structural mechanics was feasible. It proved that the softwood cells could be disrupted under certain cutting force.

引用本文

EndNote

Ris (Procite)

Bibtex

导出引用

杨冬霞,马岩,杨春梅. 针叶树材细胞破壁力的理论计算[J]. 南京林业大学学报（自然科学版）. 2013, 37(03): 97-102 https://doi.org/10.3969/j.issn.1000-2006.2013.03.018

YANG Dongxia, MA Yan, YANG Chunmei. Theoretical calculation of coniferous wood cell wall[J]. JOURNAL OF NANJING FORESTRY UNIVERSITY. 2013, 37(03): 97-102 https://doi.org/10.3969/j.issn.1000-2006.2013.03.018

中图分类号： S781.2

参考文献

[1] 罗海.木塑复合材料的光降解与光稳定[J].中国塑料,2011,5(25):24-29. Luo H. Light degradation and light stabilization of wood-plastic composites[J].China Plastics, 2011,5(25):24-29.
[2] 周崟.中国落叶松属木材[M].北京:中国林业出版社,2001.
[3] 李坚.木材科学[M].哈尔滨:东北林业大学出版社,1994.
[4] 马岩.木材横断面六棱规则细胞数学描述理论研究[J].生物数学学报,2002,17(1):64-68. Ma Y. Research on mathematical model of wood horizontal section hexagon standard cell[J].Journal of Biomathematics,2002,17(1):64-68.
[5] 齐英杰,杨春梅,马岩.马尾松细胞外廓结构简化模型的建立与仿真[J].林业科学,2006,42(9):93-95. Qi Y J,Yang C M,Ma Y. The establishment and simulation of model of pinus massoniana fiber cell[J]. Scientia Silvae Sinicae,2006,42(9):93-95.
[6] 李明宝.基于有限元理论的木材力学建模与仿真研究[M].哈尔滨:东北林业大学出版社,2008.
[7] 高永毅,焦群英,王荣.植物细胞对外加压缩载荷的响应分析[J].应用力学学报,2005,22(1):79-83. Gao Y Y, Jiao Q Y, Wang R. Response analysis of plant cell to external compressive force [J].Chinese Journal of Applied Mechanics,2005,22(1):79-83.
[8] 赵仁杰,喻云水.木质材料学[M].北京:中国林业出版社,2003.
[9] 刘一星,赵广杰.木质资源材料学[M].北京:中国林业出版社,2003.
[10] 高永毅,焦群英,苏志宵,等.植物细胞二维力学模型中面积保持不变条件及其实现条件[J].湘潭师范学院学报,2003,25(l):87-91. Gao Y Y, Jiao Q Y, Su Z X, et al. The condition of constant area and its realizing in plant cell two-dimensional mechanical models[J].Journal of Xiangtan Normal University,2003,25(1):87-91.
[11] Ugai Watanabe, Yuji Imamura, Ikuho Iida.Liquid penetration of precompressed wood VI: Anatomical characterization of pit fractures[J].The Japan Wood Research Society, 1998, 44:158-162.
[12] 马岩,杨春梅.微米长薄片木纤维切削加工功率的理论计算方法与效益分析[J].林业科学,2006,42(3):44-46. Ma Y, Yang C M. The theory computational and beneficial analysis on wood cutting power[J]. Scientia Silvae Sinicae,2006,42(3):44-46.
[13] Valli A, Koponen A, Vesala T, et al.Simulations of water flow through bordered pits of conifer xylem[J].Journal of Statistical Physics,2002,107(4):152-164.
[14] 马岩.木材年轮间细胞尺寸数学关系的建模理论[J].东北林业大学学报,2006,34(5):57-60. Ma Y. Modeling theory of mathematical relationships of cell size among wood annual rings[J].Journal of Northeast Forestry University,2006,34(5):57-60.
[15] Zhang Y L, Cai L P.Effects of steam explosion on wood appearance and structure of sub-alpine fir[J].Wood Science and Technology, 2006, 40:427-436.
[16] 朴永守.木材切削学[M].哈尔滨:东北林业大学出版社,1992.
[17] 南京林业大学.木材切削原理与刀具[Z].南京:南京林业大学,1983.
[18] 别尔沙德斯基 А Л.木材切削学[M].陆仲申,倪秉华,译.北京:中国林业出版社,1959.
[19] 阮锡根,余观夏.木材物理学[M].北京:中国林业出版社,2005.
[20] 孙永华.亚纳米木粉漂移动力学分选工艺及设备研究[D].哈尔滨:东北林业大学,2009.
[21] 王慧,马岩,杨春梅,等.纳米木粉形成工艺和尺度计算方法[J].木材加工机械,2005,6:11-14. Wang H,Ma Y,Yang C M, et al.The craft of forming process and size calculating method of nanometer wood fibre[J].Wood Processing Machinery, 2005,6:11-14.
[22] 杨春梅,齐英杰,孙永华.亚纳米木粉形成的实用目数分析及应用前景[J].东北林业大学学报,2008,36(10):63-65. Yang C M, Qi Y J, Sun Y H. Practical mesh analysis and application prospects of formation of sub-nano wood flour[J]. Journal of Northeast Forestry University,2008,36(10):63-65.
[23] 余雁,江泽慧,任海青,等.管胞细胞壁力学研究进展评述[J].林业科学,2003,39(5):133-139. Yu Y,Jiang Z H, Ren H Q, et al. A Review:Current in ternational research into cell wall mechanics of tracheids[J]. Scientia Silvae Sinicae,2003,39(5):133-139.
[24] Junji Matsumura,Yoko Yamasaki,Kazuyuki Oda, et al.Profile of bordered pit aspiration in Cryptomeria japonica using confocal laser scanning microscopy:pit aspiration and heartwood color[J].The Japan Wood Research Society, 2005, 51:328-333.
[25] Isoko Takahashi, Takanori Sugimoto,Yasuo Takasu,et al.Bamboo fiber reinforced thermoplastic molding made of steamed.wood flour[J].J Mater Sci,2011, 46:6841-6849.
[26] 宋魁彦.木材顺纹压缩与多维弯曲技术[M].北京:科学出版社,2010.
[27] 赵经文,王宏钰.结构有限元分析[M].北京:科学出版社,2004.
[28] 王世忠.结构力学与有限元法[M].哈尔滨:哈尔滨工业大学出版社,2003.

基金

收稿日期:2012-04-06 修回日期:2013-01-15
基金项目:国家自然科学基金项目(31070500,31170517); 中央高校基本科研业务费专项资金资助项目(DL12CB05); 黑龙江省教育厅科学技术研究项目(12533043)
第一作者:杨冬霞,讲师,博士生。*通信作者:马岩,教授。E-mail: myan@vip.163.com。
引文格式:杨冬霞,马岩,杨春梅. 针叶树材细胞破壁力的理论计算[J]. 南京林业大学学报:自然科学版,2013,37(3):97-102.