چکیده مقاله
A recently developed method based on changes of entropy rate of the machining process for chatter detection on lathe is demonstrated For characterization of cutting dynamics, entropy rate which is a scalar value is normalized as in this form the entropy rate is independent of cutting conditions A high value of the entropy rate is typical for chatter free cutting while for chatter a low value is typical A characteristic threshold is defined to specify the boundaries of stability Experimental measurements are carried out by recording the tool vibrations and acoustical signals of a machining process The capability of detecting chatter using these two signals are compared, and accuracy, sensitivity and reliability of entropy rate for an online chatter detection in turning is also examined
کلیدواژهها
نویسندگان
M RAJABI
Graduate Student School of Mechanical Engineering,Iran University of Science and Technology, Tehran, ۱۶۸۴۴, IRAN
H AHMADIAN
Associate Professor School of Mechanical Engineering,Iran University of Science and Technology, Tehran, ۱۶۸۴۴, IRAN
شیوه ارجاع
RAJABI, M and AHMADIAN, H,1386,Chatter Detection in Turning Using Entropy Rate,02nd Tehran International Congress on Manufacturing Engineering (TICME2007),Tehran
ارائهشده در
مجموعه مقالات دومین کنفرانس بین المللی و هشتمین کنفرانس ملی مهندسی ساخت و تولید10 اسفند 1386 · تهران