T
T
T
Treesearch

Thrown object testing of forest machine operator protective structures

Informally Refereed
Download (PDF 880 KB): https://research.fs.usda.gov/download/treesearch/33466.pdf

Abstract

High-speed chains or rotating disks are commonly used to cut and process trees during forest harvesting operations. Mechanical failure or fatigue of these tools can lead to a potentially hazardous situation where fragments of chain or sawteeth are thrown through the operator enclosures on forest machines. This poster presentation discusses the development and validation of a facility to conduct thrown object tests for windows and doors used in operator protecttive structures on forest machines. The testing facility consists of a highpressure pneumatic laUOch system that propels sawteeth and chain fragments at velocities in excess of 150 m/ s.

Citation

Taylor, S.E.; Veal, M.W.; Rummer, R.B. 2003. Thrown object testing of forest machine operator protective structures. In: 2nd Forest Engineering Conference 4p.