林业机械与木工设备
林業機械與木工設備
임업궤계여목공설비
FORESTRY MACHINERY & WOODWORKING EQUIPMENT
2013年
6期
30-32
,共3页
落叶松规格材%抗弯强度%抗拉强度%多项式
落葉鬆規格材%抗彎彊度%抗拉彊度%多項式
락협송규격재%항만강도%항랍강도%다항식
dimension lumber of larch%modulus of rupture%ultra tensile strength%polynomial
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.
以落葉鬆(Larix gmelini)規格材為例,基于冪函數及多項式建立抗彎彊度與順紋抗拉彊度之間的關繫函數,給齣瞭相應函數的擬閤繫數.對比擬閤優度確定最佳關繫函數,結果錶明,三階多項式與抗彎彊度和順紋抗拉彊度的關繫擬閤最佳.
이락협송(Larix gmelini)규격재위례,기우멱함수급다항식건립항만강도여순문항랍강도지간적관계함수,급출료상응함수적의합계수.대비의합우도학정최가관계함수,결과표명,삼계다항식여항만강도화순문항랍강도적관계의합최가.
@@@@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.