多项式拟合落叶松规格材抗弯强度与抗拉强度之间的关系  

Polynomial Fitting-based Relation between Bending Strength and Tensile Strength of Larch Dimension Lumber

作　　者：赵秀 关帅 时兰翠 

机构地区：[1]黑龙江省林业科学研究院木材科学研究所,黑龙江哈尔滨150081

出　　处：《林业机械与木工设备》2013年第6期30-32,35,共4页Forestry Machinery & Woodworking Equipment

基　　金："十一五"国家科技支撑计划项目(2006BAD18B07)

摘　　要：以落叶松(Larix gmelini)规格材为例,基于幂函数及多项式建立抗弯强度与顺纹抗拉强度之间的关系函数,给出了相应函数的拟合系数。对比拟合优度确定最佳关系函数,结果表明,三阶多项式与抗弯强度和顺纹抗拉强度的关系拟合最佳。@@@@Using polynomial and power function to establish the relation between modulus of rupture and ultra tensile strength of larch (Larix gmelini) dimension lumber, receiving the fitting coefficients. By comparing the goodness of fit, the optimal relation function was found. The results show that Three order polynomial has the best goodness of fit for the relation between modulus of rupture and ultra tensile strength.

关 键 词：落叶松规格材 抗弯强度 抗拉强度 多项式 

分 类 号：TS612[轻工技术与工程]