After the analysis of the acting forces in an double-acting hydro-hammer during the phases of acceleration of the harnmer, a mathematical model for computerized simulation is set up.
李国民.双作用液动冲击器仿真电算数学模型[J].钻探工程,1997,(4):34-36. Li Guomin. Mathematical Model for The Computerized Simulation of The Double-acting Hydro-hammer[J]. Drilling Engineering, 1997,(4):34-36.