Year
2017
Degree Name
Master of Engineering
Department
School of Mechanical, Material, Mechatronic and Biomedical Engineering
Abstract
Chatter is one of the major barriers for the robotic machining process. As the dominant vibration frequency of the chatter varies under different working conditions, Magnetorheological elastomers (MREs) whose stiffness is adjustable is an ideal device to be used for chatter control. This thesis presents a new chatter reduction scheme by attaching an MREs device on the spindle to absorb vibration at a specific frequency range. Firstly, a test was implemented to check the frequency-shift property of the designed MREs and then robotic milling of an aluminium block using ABB IRB6660 robot is tested at various conditions. Secondly, a semi-control system was established to operate the MRE absorber automatically. The experimental results showed a notable potential to reduce the chatter/vibration in the robotic milling application through semi-active vibration reduction using MREs device.
Recommended Citation
Yuan, Lei, A Study of Chatter in Robotic Machining and A Semi- Active Chatter Suppression Method Using Magnetorheological Elastomers (MREs), Master of Engineering thesis, School of Mechanical, Material, Mechatronic and Biomedical Engineering, University of Wollongong, 2017. https://ro.uow.edu.au/theses1/116
FoR codes (2008)
0902 AUTOMOTIVE ENGINEERING
Unless otherwise indicated, the views expressed in this thesis are those of the author and do not necessarily represent the views of the University of Wollongong.