Using of versine and sagitta calculations for log sawing optimization, part 1: Circular cross-section

Authors

  • Hizir Volkan Gorgun

DOI:

https://doi.org/10.4067/s0718-221x2021000100453

Keywords:

Log sawing, lumber optimization, sagitta, yield, versine

Abstract

Log sawing can be defined as a problem with obtaining squares from a cylindrical shaped raw material, log. There are traditional sawing methods such as live, cant, quarter, etc. for sawmills. However, they cant generally obtain maximum yield due to log and lumber variables for each log. Therefore, many mathematical approaches and computer programs were improved for log sawing. In this study, suitability of two geometrical calculations, versine and sagitta, were tried for log sawing process. Logs were assumed having cylindrical shape and circular cross section. The estimation accuracy of calculations were tested for live and cant sawing methods with in a drawing software. The results showed that one of versine equations works almost as well as the real dimensions. It is suggested that the equation can be used inside of algorithms for log sawing optimization. However, the real log defects such as taper, irregular cross-section, curvature, etc. should be considered for more realistic yield and accuracy.

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Published

2021-01-01

How to Cite

Volkan Gorgun, H. . (2021). Using of versine and sagitta calculations for log sawing optimization, part 1: Circular cross-section. Maderas. Ciencia Y Tecnología, 23, 1–8. https://doi.org/10.4067/s0718-221x2021000100453

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