TAILIEUCHUNG - Báo cáo lâm nghiệp: "Utilization of a dynamometric pendulum to estimate cutting forces involved during routing. Comparison with actual calculated values"

Tuyển tập các báo cáo nghiên cứu về lâm nghiệp được đăng trên tạp chí lâm nghiệp Original article đề tài:"Utilization of a dynamometric pendulum to estimate cutting forces involved during routing. Comparison with actual calculated values" | Ann. For. Sci. 62 2005 441-447 INRA EDP Sciences 2005 DOI forest 2005040 441 Original article Utilization of a dynamometric pendulum to estimate cutting forces involved during routing. Comparison with actual calculated values Florent EYMAa Pierre-Jean MÉAUSOONEb Pierre LARRICQa Rémy MARCHALc a IUT Paul Sabatier 1 rue Lautréamont 65000 Tarbes University of Toulouse France b ENSTIB 27 rue du Merle Blanc 88000 Épinal University of Nancy France c ENSAM Cluny rue Porte de Paris 71250 Cluny France Received 5 October 2004 accepted 14 March 2005 Abstract - Nowadays to measure cutting forces involved during routing systems with piezo-electric sensors are generally used. This study began with the following observation two species with the same density can induce completely different cutting forces. But two species with completely different densities can also show closed cutting forces. Current formulations used to calculate cutting forces can not explain such phenomenon. That is why some new research has been done to establish relationship between cutting forces and mechanical parameters 8 . In this work we decided to present a very simple quick and accurate method to obtain similar results and good cutting forces approximation using a dynamometric pendulum. With this method we can take into account the machining parameters wood characteristics cutting speed and impact resistance into just one test. It is possible to quickly know wood behaviour during machining particularly when new species or new conditions are used in industries. cutting forces prediction dynamometric pendulum routing tropical woods Résumé - Utilisation d un pendule dynamométrique pour estimer les efforts de coupe en défonẹage comparaison avec les valeurs actuellement calculées. De nos jours pour mesurer les efforts de coupe en défonẹage on utilise généralement des capteurs piézo-électriques. Cette étude a été lancée suite à certaines observations deux essences avec la même densité peuvent demander

• Báo cáo khoa học
• Báo cáo lâm nghiệp hay
• cách trình bày báo cáo
• báo cáo lâm nghiệp
• công trình nghiên cứu lâm nghiệp
• tài liệu về lâm nghiệp