Modal and Harmonic Response Analysis of the Drilling Arm of JMZ Airborne Anchor Drilling Rig

CHEN Muran; TENG Wenxiang; FEI Shuhui; TAO Yongqin; WANG Cheng

doi:10.16545/j.cnki.cmet.2025.01.010

Abstract：In response to the problems of reduced positioning accuracy and drilling efficiency caused by excessive vibration of the drilling arm of the airborne anchor drilling rig,the JMZ airborne anchor drilling rig drilling arm was taken as the research object,and the modal and harmonic response analysis of its three working conditions was carried out using ANSYS software.On the premise of meeting the strength requirements,the first six natural frequencies and vibration modes of the drill arm were obtained through modal analysis,and the stress and deformation vibration response of the drill arm were obtained through harmonic response analysis.The results indicated that the first six natural frequencies of the drilling arm under various operating conditions were not close to the excitation frequency,and resonance would not occur.Within the frequency range of 0～40 Hz,the maximum stress response amplitudes of the drilling arm under various operating conditions are 0.430 MPa,0.221 MPa,and 0.432 MPa,respectively.The maximum deformation response amplitudes are 1.239 mm,0.786 mm,and 1.156 mm,respectively.Under the influence of the excitation frequency of 9.16 Hz,the maximum stress response values increased by the drilling arm under various operating conditions are 6.415 MPa,7.572 MPa,and 6.934 MPa,respectively.The maximum deformation response values are 0.059 mm,0.052 mm,and 0.060 mm,respectively.Therefore,the impact of harmonic response vibration on the drilling arm is very small,and the working stability of this model of drilling arm meets the requirements.