Predictive modeling of surfaces formed under round timber dressing
The article reflects theoretical fundamentals for the virtual round timber dressing method into hewn blanks to be planed in the crossband veneer technique. The crossband veneer type is known to be dependent on the accepted ripping method (round logs). The paper proposes the 3D modeling method aiming at the development of round timber solid metric model, which reflects its internal macrostructure, in particular, its growth-rings. Besides, round timber is considered to have the form of the truncated paraboloid of revolution, with annual ring width changing radially. The obtained mathematical model enables to fulfil the virtual round timber dressing at any angle to its longitudinal axis, reflect more real surface texture in the cutting plane as compared to the truncated cone round log, and thereby predict the veneer type and its texture more accurately.