ISSN 1062-7391, Journal of Mining Science, 2017, Vol. 53, No. 5, pp. 855–860. © Pleiades Publishing, Ltd., 2017.
Original Russian Text © L.V. Gorodilov, D.V. Vagin, T.B. Rasputina, 2017, published in Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, 2017,
No. 5, pp. 64–70.
_______________________________ SCIENCE OF MINING ____________________________
Development of the Procedure, Algorithm and Program to
Select Basic Parameters of Hydraulic Percussion Systems
L. V. Gorodilov*, D. V. Vagin, and T. B. Rasputina
Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630091 Russia
Received June 22, 2017
Abstract—The article presents the procedure and algorithm for selecting basic characteristics of a
positive-displacement hydraulic percussion systems. The procedure is based on the dimensional analysis
of equations of the system, selection of similarity criteria and calculations of output characteristics in the
space of the similarity criteria. The program offers a user the options of setting initial parameters and
characteristics of hydraulic percussion systems in the form of values and constraints and, then, selecting
table values for the dimensionless characteristics to be inserted in the similarity formulas for deciding on
the system options. For a selected system, geometry of the hammer head is calculated. The Java-based
program has a graphical multi-window interface, including menu, toolbox, windows for setting
parameters, and limitations, input of source data and calculated data, computation of hammer head sizes
and output of plotted dynamic characteristics of limit cycles of the hydraulic percussion system.
Keywords: Hydraulic percussion system, similarity criteria, limit cycle characteristics, graphical interface.
Setting about design of a hydropercussive machine, it is required to know physical and geometrical
parameters of the machine parts under desired conditions. Sometimes it is important to understand
dynamics of a system in order to ensure fail-safe and efficient operation of its components. Available
programs, e.g.б SimulationX, Automation Studio, SIMULINK/MATLAB [1–4] etc., allow simulation
model of engineering systems, including hydraulic, pneumatic and powered elements such as hydro-
percussion systems. It is feasible to apply these programs to selecting parameters of a system and
calculating its dynamics, though it requires excessive preparation connected with the development and
diagrammatizing of relevant hydraulic/mechanical circuits. Furthermore, any project has many
implementation scenarios, and it is necessary to select the best variant based on certain conditions.
These operations involve extensive calculations and much computation time even on modern high-
For these reason, it is of the current concern to develop a program for automation of the stage of
the outline design and select a most suitable alternative. This article presents the procedure and
algorithm as well as the structure and interfaces of of the program in the Java language for selecting
parameters of a positive-displacement hydro-percussion system.
The first stage is mathematical modeling of a hydro-percussion system including its basic physical
characteristics. Then, by the analogy method , the dimensional analysis is performed and the
dynamic similarity criteria are chosen. In the space of the criteria, numerical values are obtained from