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dc.contributor.authorBulgakov, V.
dc.contributor.authorIvanovs, S.
dc.contributor.authorArak, Margus
dc.contributor.authorKuvachоv, V.
dc.contributor.authorShymko, L.
dc.contributor.authorBandura, V.
dc.identifier.publicationAgronomy Research, 2018, vol. 16, no. x, pp. xxxeng
dc.description.abstractThe use of ploughing machine - and - tractor aggregates, operating according to the principle of ‘push - pull’ , finds increasing application in the world since it allows ensuring the stability of the movement and the depth of ploughing, reduction of the energy indicators. The aim of this experimental study is to determine under field conditions the dynamic and ope rational technological parameters of the ploughing machine - and - tractor aggregate, operating according to the ‘push - pull’ system. This aggregate was an integral ploughing - tillage wheeled HTZ 16131 tractor, in front of which there was mounted a two - bottom pl ough, and at the rear – four - bottom ploughs. This aggregate has satisfactory path parameters of the movement during the execution of the technological process of ploughing. The oscillations of the furrow path for this aggregate are of a low - frequency natur e and are concentrated in a rather narrow frequency range (0...50 m - 1 ). At the operating speed of 2.0 m ∙ s - 1 it is 0...0.16 Hz. The maximum value of the mutual correlation function between the input impact (the turning angle of the driven wheels of the aggr egating tractor) and the output value – its relative bearing is positive and reaches a value of 0.88. Stability of the ploughing depth for the aggregate according to the ‘2 + 4’ scheme is ± 1.65 cm 2 , which is normally the smaller value of the same indicato r for a serial ploughing aggregate (± 1.98 cm 2 ).eng
dc.subjectsystem ‘push-pull’eng
dc.titleExperimental investigation of the work of a ploughing aggregate, operating according to the system ‘push- pull’eng
dc.rights.holderCopyright 2009 by Estonian University of Life Sciences, Latvia University of Agriculture, Aleksandras Stulginskis University, Lithuanian Research Centre for Agriculture and Forestry. No part of this publication may be reproduced or transmitted in any form, or by any means, electronic or mechanical, incl. photocopying, electronic recording, or otherwise without the prior written permission from the Estonian University of Life Sciences, Latvia University of Agriculture, Aleksandras Stulginskis University, Lithuanian Research Centre for Agriculture and Forestryeng
dc.contributor.departmentEstonian University of Life Sciences. Institute of Technologyeng

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