Design and analysis of a two-dimensional vibration control mechanism based on vibro-impact damping

• Published in: 高技术通讯（英文版） Vol. 29; no. 1; pp. 105 - 112
• Main Authors: ZHANG Laixi, QIAN Feng, WU Mingliang
• Format: Journal Article
• Language: English
• Published: School of Mechanical and Electronical Engineering,Lanzhou University of Technology,Lanzhou 730050,P.R.China 01.03.2023
• Subjects: variable clearance; impact damping; two-dimensional vibration control; semi-active vibration control; robotic drilling
• DOI: 10.3772/j.issn.1006-6748.2023.01.012
• ISSN: 1006-6748

The robotic drilling always generates the axial vibration along the drill bit and the torsional vi-bration around the drill bit, which will adversely affect the drilling precision. A vibration control mechanism fixed between the end-effector and the robot is proposed, which can suppress the axial and torsional vibrations based on the principle of vibro-impact ( VI) damping. The energy dissipa-tion of the system by vibro-impact damping is analyzed. Then, the influence of the structure parame-ters on the vibration attenuation effect is studied, and a semi-active vibration control method of vari-able collision clearance is presented. The simulation results show that the control method has effec-tive vibration control performance.