%0 Journal Article %T Dynamic Analysis of Percussion Drilling System under Harmonic Impact %A Zeng, Yijin %A Ding, Shidong %A Xu, Jinchao %A Hu, Qunai %A Cui, Xiaojie %J Shock and Vibration %V 2021 %@ 1070-9622 %D 2021-06-23 %I Hindawi %~ DeepDyve