Näita lihtsat nimetuse kirjet

dc.contributor.authorBulgakov, V.
dc.contributor.authorAdamchuk, V.
dc.contributor.authorArak, Margus
dc.contributor.authorPetrychenko, I.
dc.contributor.authorOlt, Jüri
dc.date.accessioned2017-09-11T06:39:50Z
dc.date.available2017-09-11T06:39:50Z
dc.date.issued2017
dc.identifier.citationAgronomy Research, 2017, vol. 15, no. x, pp. xxxeng
dc.identifier.issn1406-894X
dc.identifier.urihttp://hdl.handle.net/10492/3686
dc.identifier.urihttp://dx.doi.org/10.15159/ar.17.059
dc.descriptionArticleeng
dc.description.abstractA mathematical model has been developed representing the motion of a seed drill combination simultaneously performing the preceding banded placement of mineral fertilisers. Such a combined unit comprises the gang-up wheeled tractor, the fertiliser distribution module behind the tractor attached to it with the use of a hitch and intended for the banded placement of mineral fertilisers and the grain drill behind the fertiliser distribution module attached to it also with the use of a hitch. For the components of this dynamic system the coordinates of their centres, their masses as well as the external forces and the reactions of the soil surface applied to them have been determined. In order to use the original dynamic equations in the form of the Lagrange equations of the second kind, the generalised coordinates and kinetic energy relations have been determined. Following the necessary transformations, a system of six differential equations of motion has been generated, which characterises the behaviour of the combined machine unit during its plane-parallel motion. In this system, two line coordinates and one angular coordinate characterise the behaviour of the propulsion and power unit (wheeled tractor), while three angular coordinates characterise the rotations of the draft gear and the centres of the machines integrated with its use.eng
dc.subjecttractoreng
dc.subjectgeneralised forceeng
dc.subjectkinetic energyeng
dc.subjectplane-parallel motioneng
dc.subjectmodellingeng
dc.subjectarticleseng
dc.titleTheoretical research into the motion of combined fertilising and sowing tractor-implement uniteng
dc.typeArticleeng
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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Näita lihtsat nimetuse kirjet