Naslov
Research on the Dynamics of Milling

Autori
Giovanni Totis

Vrsta, podvrsta i kategorija rada
Ocjenski radovi, doktorska disertacija

Fakultet
Facolta' di Ingegneria

Mjesto
Udine

Datum
12.03

Godina
2008

Stranica
155

Mentor
Kuljanić, Elso

Ključne riječi
Dynamics of Milling; Dynamometer; Chatter; Modelling
(Dynamics of Milling; Dynamometer; Modelling)

Sažetak
The development of a chatter detection system for application in industrial conditions was investigated. Several sensors—rotating dynamometer, accelerometers, acoustic emission and electrical power sensors—were compared to determine which signals are most sensitive to chatter onset. The signal characteristics both in time and frequency domain were condensed into a set of chatter indicators, which were further elaborated by means of statistical basic concepts, in order to obtain a chatter identification system. Single-sensor systems and multisensor systems were compared both in terms of accuracy and robustness against malfunctions. Among single sensor systems, the cutting torque signal proved to be a superior signal for chatter identification. Multisensors systems composed of three or four sensors are the most promising solution for reliable and robust chatter identification. The best results were obtained by the multisensor system composed of the axial force sensor and accelerometers.

Izvorni jezik
Engleski

Znanstvena područja
Strojarstvo

POVEZANOST RADA