Abstract：A mathematical model of impact-progressive mechanical system accouting for vibration and progressive motion, and capable of transferring a high-frequency low-amplitude excitation into low-frequency high-amplitude response is developed. Condition for synchronous and non-synchronous motions of impact components immediately after the impact is studied. A asymmetric beat frequency kinematic excitation is used, i.e.only positive part of the modulated signal excites the mass . The results indicate that an effective impact forces, i.e.hammer effect is generated by the excitation. Two different ways to achieve a steady progression are explored without additional control, however, in these two cases progression rates are relatively low. A simple control strategy enhancing progression rates is implemented, and better progression rates are achieved.
吕小红;罗冠炜. 拍频激励下冲击钻进系统的运动分析[J]. , 2012, 31(24): 1-4.
L Xiao-hong LUO Guan-wei. Kinematic analysis of impact-progressive system by beat frequency excitation. , 2012, 31(24): 1-4.
2012, Vol. 31 
