ANALYSIS OF SOME PROBLEMS AND REQUIREMENTS FOR NEW SOUND RESONANT UNITS FOR TRENCHLESS LAYING OF PIPELINES BY VIBRATION METHODS
Kiriencko Elena Anatolyevna, – Candidate of Technical Sciences, associate professor of Applied Fluid Mechanics and Mechatronics Department of NTUU «Igor Sikorsky Kyiv Polytechnic Institute» (03056, Kyiv, Prospect Peremohy, 37).
This article continues the series of works, which are devoted to studies of vibration methods of pipe laying, with purpose of increasing the productivity through higher speed of driving, penetration capacity, possibility to overcome the great frontal resistance of soil at acceptable energy consumption. The studies have been fulfilled on the base of wave theory of stress propagation in going downward pipe and in soil.
This article analyzes some of the challenges facing designers of sound-resonance units for vibro-puncture and vibro-compression, operating in a wide range of laid pipes and in different soil conditions while constructing underground passages not only under motor roads, highways and railway embankments but also under bottom of various water basins which can be carried out by trenchless methods.
There has been conducted the analysis of the high frequency vibrators existing abroad, which are suitable for work in sound resonance modes, in particular, quarter wave and unpaired multiple to it “three-quarter wave” and “five-quarter wave” modes. Existing drives, able to provide the possibility for high consumed power achievement, have been analyzed, which may be necessary while constructing long lengths under water pathways (up to 300 m) with the use of sound-resonance units.
Some examples of necessary technical characteristics for new sound-resonant installations for vibro-puncture and vibro-compression are given; basic requirements for these installations are formulated.
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The journal "Vibrations in engineering and technology" presents materials on the following issues
• Theory of processes and machines
• Mechanical Engineering and materialprocessing
• Processing and food production
The certificateof massmediaState registration:kv no 16643-5115 from 30.04.2010 .
Founder of the journal: Vinnytsia National Agrarian University
Kind of publication: journal
Type of publication : Scientific
Publication status: Domestic
Year of founding:
Periodicity: 4 times a year
Extent: 18.75 nominal printed pages
ISSN: 2306-8744 (printed version), (online)
Language of edition : (mixed languages) Ukrainian, English
The scope of the distribution and the category of readers: national, foreign, teaching staff, scientists, businessmen.
Periodical is included in the list of scientific professional editions of Ukraine approved by the Order of Ministry of Education and Sciences of Ukraine from 21.12.2015 No. 1328.
The journal "Vibrations in engineering and technology" is included in the "Catalogue of periodicals of Ukraine".
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Subscription Index is 99720.
Old version of site: http://vibrojournal.vsau.edu.ua/
In June 1994 the 2nd International Scientific and Technical Conference "Application of vibrations for technological purposes" was organized on the basis of Vinnytsia State Agricultural Institute. Leading experts in this field, noting the significant contribution to the school of Vibration Engineering under the leadership of P. S. Bernyk, proposed to create a professional all-Ukrainian scientific and technical journal "Vibration in engineering and technology..The journal was foundedat Vinnytsia State Agricultural Institute and P.S. Bernyk was elected to be the chief editor .
For all these years (since 1994) theJournal "vibration in engineering and technology" published 94 issues wherestudy of vibration effects, the creation of progressive energy saving technologies and equipment for their implementation were highlighted.
Currently Kaletnik H.M PhD , professor, academician NAAS is the chief editor of the "Vibrations in engineering and Technology"
The journal "Vibration in Engineering and technology", which has no analogues on the territory of Ukraine, is well known abroad.