Measuring of drill bit vibration by laser Doppler methods

23rd International Conference on Manufacturing

Béres, M.^1 ; Paripás, B.^1

Institute of Physics, University of Miskolc, Miskolc

H-3515, Hungary^1

关键词: Drilling process;    Frequency spectra;    Interferometric methods;    Laser doppler;    LDV (laser Doppler vibrometer);    Measurements of;    Torsional vibration;    Translational vibration;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/448/1/012068/pdf
DOI  :  10.1088/1757-899X/448/1/012068

来源: IOP

【 摘 要 】

The beginning of the drilling process was measured on the drill bit by laser Doppler interferometric methods. The measurements of the velocities were based on the Doppler effect. An LDV (Laser Doppler Vibrometer) device was used to measure the translational vibrations, and then the torsional vibrations (angular velocity changes) of the drill bit were investigated by an LTV (Laser Torsional Vibrometer) device. The time series and frequency spectra were also analysed.