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ArticleName Design theory, methods, programs and development for hydraulic percussion systems
DOI 10.17580/gzh.2019.10.07
ArticleAuthor Gorodilov L. V.

N. A. Chinakal Institute of Mining Siberian Branch Russian Academy of Sciences, Novosibirsk, Russia:

L. V. Gorodilov, Head of Laboratory, Doctor of Engineering Sciences,


The article spotlights the integrated research into hydraulic percussion systems for mining and other branches of industry. Despite a wide variety and diversity of studies, the design theories and methods experience some challenges, and there are prospects for creating and improving efficient designs of hydropercussion systems. In recent years, the Laboratory for Modeling Pulse-Generating Systems at the Institute of Mining, SB RAS has been carrying out the integrated theoretical and experimental research into hydropercussion systems, and the findings are generalized in this article. Based on the analytical model of an independent system with a constant flow rate source, the mathematical models are constructed for basic classes of self-oscillating hydropercussion systems, the dimensional analysis is performed, and the dynamic similarity criteria are selected. For the systems, their dynamics is studied, the output characteristics are analyzed, and the efficient operation ranges are determined. The formulas of the integral characteristics of the systems are obtained. The common patterns are found in the dynamics of self-oscillating two-way hydropercussion systems. The HPS Java program with graphicsbased environment is developed for early-stage selection of combinations of basic parameters for two-way hydropercussion systems. The principles of simulation program of hydropercussion systems are formulated, and the almost real dynamics program is developed. The C++ program is based on the separate description of a modeled system as a set of structures–classes fitting physical objects, and the simulation procedure of the system functioning in time is proposed. A series of original designs of hydropercussion systems and fluid distribution systems is developed and protected by RF patents, including systems with adjustable blow frequency and energy, as well as adaptive devices with variable characteristics depending on properties of a treated material. The availability and efficiency of the systems and devices are experimentally validated.

keywords Hydropercussion system, limit cycle, similarity criterion, impact capacity, efficiency, physical model, simulation modeling, program, distributer

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