Сreating of the telescopic working equipment of excavator as a problem of the discrete optimization

Authors

  • L. A. Khmara Department of Building and road machines. State Higher Education Establishment “Pridneprovsk State Academy of Civil Engineering and Architecture”, 24-A, Chernishevskogo str., Dnipropetrovsk 49600, Ukraine, Ukraine
  • O. O. Вakhno Department of Building and road machines. State Higher Education Establishment “Pridneprovsk State Academy of Civil Engineering and Architecture”, 24-A, Chernishevskogo str., Dnipropetrovsk 49600, Ukraine, Ukraine

Keywords:

Excavator, telescopic the formation of of the working equipment, structural synthesis, discrete optimization.

Abstract

Summary.  Raising of problem.  A promising area of earth-moving equipment is a telescopic working equipment  of excavator, which can increase the digging depth and dump height, increase the amount of soil developed on one lot and the radius of the equipment, to quickly change a wide range of geometrical parameters of  working equipment, and use a wide range of interchangeable working bodies.  In addition, the telescopic working equipment allows workers to combine operations with the simultaneous change in the linear dimensions of the equipment, which leads to a reduction in the cycle time, and perform the work required by the translational movement, for example, the dispersed work for cleaning  and  planning  surfaces  earthworks  in  road  construction.  The  purpose  of  the  article.  Develop  a  method  of forming an excavator working equipment with variable geometrical parameters in which parameters are changing due to the use a telescopic mechanism.  Conclusion.  The proposed method of formation of the working equipment excavator with variable geometrical parameters in which parameters are changing due to the use a telescopic mechanism allows to obtain the correct combination of the constituent elements in the structure of the new equipment. Provided a method for the  problem  of  structural  synthesis  of  information  to  a  linear  discrete  p rogramming.  Application  of  the  methods  of structural synthesis, hypergraphs and set theory allowed to eliminate physically impossible combination. The resulting structure  of  the  conventional  and  telescopic  elements  include  all  possible  combinations  of  both   kinematic  and technological schemes.

Author Biographies

L. A. Khmara, Department of Building and road machines. State Higher Education Establishment “Pridneprovsk State Academy of Civil Engineering and Architecture”, 24-A, Chernishevskogo str., Dnipropetrovsk 49600, Ukraine

Doctor of Technical Sciences, Professor.

O. O. Вakhno, Department of Building and road machines. State Higher Education Establishment “Pridneprovsk State Academy of Civil Engineering and Architecture”, 24-A, Chernishevskogo str., Dnipropetrovsk 49600, Ukraine

postgraduate

References

Balovnev V. I., Khmara L. A. Intensifikatsiya zemlyanyih rabot v dorozhnom stroitelstve [Intensification of earthworks in road construction]. – M.: Transport, 1983. – 184 p.

Belyakov Yu. I., Levinzon A. L., Galimullin V. A. Zemlyanyie rabotyi, 2-e izdanie, pererabotannoe i dopolnennoe [Earthwork, 2nd edition, revised and enlarged]. – M.: Stroyizdat, 1990, 281 p.

Bozhko A. N. Strukturnyiy sintez kak zadacha diskretnoy optimizatsii [Structural synthesis as a discrete optimization problem.]. Elektronnoe izdatelstvo «Nauka i obrazovanie» [Electronic publishing "Science and Education"]. – M.: FGBOU VPO "MGTU im. N. E. Baumana", 2010. #9. – P. 25-46.

Garkavi N. G. Mashinyi dlya zemlyanyih rabot [Machines for earthworks] / Garkavi N. G. // – M.: Vyissh. shk. 1982. – 335 p.

Ditrih Ya. Proektirovanie i konstruirovanie. Sistemnyiy podhod. Per. s polsk. [Engineering and designing. Systems approach. Trans. from Polish.] – M.: Mir, 1981. – 456 p.

Kron G. Issledovanie slozhnyih sistem po chastyam (diakoptrika). Per. s angl. [Investigation difficult systems in parts (Diakoptics). Trans. from English] – M.: Nauka, 1972. – 544 p.

Khmara L. A., Kravets' S.V., Skoblyuk M. P., ta in. Mashyny dlya zemlyanykh robit: pidruchnyk [Machines for earthworks: manual]. – Kh.: KhNADU, 2014 – 548 р.

Khmara L. A., Dakhno O. A. Teoreticheskie osnovyi formirovaniya teleskopicheskogo rabochego oborudovaniya odnokovshovogo gidravlicheskogo ekskavatora. [Theoretical bases of formation of a telescopic working equipment of hydraulic excavator]. Stroitelnyie i dorozhnyie mashinyi [Building and road machines]. – M.: Ltd. «SDM-Press», 2015. #12. – P. 44-50.

Khmara L. A., Dakhno O. A. Teleskopicheskoe rabochee oborudovanie gidravlicheskogo ekskavatora i otsenka ego effektivnosti [The telescopic working equipment of hydraulic excavator and evaluation of its effectiveness]. Stroitelnyie i dorozhnyie mashinyi [Building and road machines]. – M.: Ltd. «SDM-Press», 2013. #11. – P. 8-11.

Khmara L. A., Dakhno O. O. Otsinka efektyvnosti teleskopichnoho robochoho obladnannya odnokivshevoho ekskavatora ta vyznachennya produktyvnosti [Evaluating the effectiveness of telescopic working equipment of excavator and definition performance]. Vestnyk KhNADU. – Kh.: KhNADU, 2014. #65-66. – P. 263-272.

Khmara L. A., Dakhno O. O., Romanovs'kyy O. L. Tendentsiyi rozvytku robochoho obladnannya hidravlichnykh ekskavatoriv zi zminnymy heometrychnymy parametramy [ Tendencies of Development of hydraulic excavator working equipment with variable geometric parameters]. Visnyk NUVHtP. – Rivne: NUVHtP, 2015. №2 (70). – P. 433-448.

Published

2016-04-26

Issue

Section

Lifting and transport, construction and road machines and equipment