چکیده مقاله
In this paper, real time Pythagorean hodograph P H curve CNC interpolators are used for high speed corner machining There are large contouring errors around sharp corners when low bandwidth servo controllers such as P PI control are used Also backlashes can impose additional errors during tracking a corner In order to decrease the amount of the cornering errors, an improved interpolation method is proposed The geometric parameters of the over corner P H curve and the feed rate along the modified tool path are computed by Pattern Search Algorithm in order to reduce the maximum cornering error The results of simulation, such as the cornering error and the total cornering time, are compared with previously published methods It has been observed that the developed over corner PH approach will substantially reduce the amount of cornering error for P PI servo controller with backlash
کلیدواژهها
نویسندگان
J Jahanpour
PhD candidate of applied mechanics Mechanical Engineering Department,Ferdowsi University of Mashhad, Mashhad, Iran
B Moetakef Imani
Assistant professor Mechanical Engineering Department,Ferdowsi University of Mashhad, Mashhad, Iran
شیوه ارجاع
Jahanpour, J and Moetakef Imani, B,1386,Implementing P-H High Speed Cornering Method on P-PI Servo Controller with Backlash,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