The techniques of simulating hardwood logs and “sawing” them into lumber on a computer, are discussed. The log is simulated as a truncated cone and the defects inside it as rectangular solids. Data for log and defect simulation can be either generated randomly or put in from actual cases. The process of sawing is discussed from the viewpoint of intersecting both the log and the defects with the sawing planes. To simulate as many sawing patterns as possible, the simplex technique commonly used in linear programing problems was employed to determine lines of intersection between the various planes. The simulator is used presently for research purposes to compare sawing patterns employed when sawing sugar maple (Acer saccharum Marsh.) logs.
You must be logged in to download any documents. Please login (login accounts are free) or learn how to Become a Member