CAJ | 학술논문

描述了一种模拟原木截面形状的新方法.用自行研制的MQK3102原木形状识别机测得原木截面上的有限离散样点,利用二次B样条参数曲线拟合方法对这些点进行拟合.该方法能较好地模拟出原木截面的真实形状,样点数量要求不多,计算速度快,前一段曲线的计算结果不影响后面的计算,避免了由累计误差引起的图形失真.将其运用到原木长度方向上的多个采样截面,可近似模拟出原木的整体外形,从而为原木的优化下锯提供参考模型.
묘술료일충모의원목절면형상적신방법.용자행연제적MQK3102원목형상식별궤측득원목절면상적유한리산양점,이용이차B양조삼수곡선의합방법대저사점진행의합.해방법능교호지모의출원목절면적진실형상,양점수량요구불다,계산속도쾌,전일단곡선적계산결과불영향후면적계산,피면료유루계오차인기적도형실진.장기운용도원목장도방향상적다개채양절면,가근사모의출원목적정체외형,종이위원목적우화하거제공삼고모형.
This paper describes a new method for simulation of the cross section shape of log. The self-developed MQK3102 log shape recognizing machine was used to acquire the finite discrete sampling points on the cross section of log and those points were fitted with the quadratic B-spline parametric curve. This method can clearly stimulate the real shape of the log cross section and is characterized by limited sampling points and high speed computing. The computed result of the previous curve does not affect the next one, which may avoid the graphic distortion caused by the accumulative error. The method can be used to simulate the whole body shape of log approximately by sampling the cross sections along the length direction of log, thus providing a reference model for optimum saw cutting of log.