Modeling automatic horizontation system of steep-sloping mobile machine with hydraulic sensor roll
The article is devoted to modeling the leveling system of a mobile machine using a hydraulic sensor that controls a hydromechanical system. The review of modern leveling systems for mobile machines made it possible to determine the criteria for assessing the quality of such systems and to prepa...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Omsk State Technical University, Federal State Budgetary Educational Institution of Higher Education
2019-04-01
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| Series: | Омский научный вестник |
| Subjects: | |
| Online Access: | https://www.omgtu.ru/general_information/media_omgtu/journal_of_omsk_research_journal/files/arhiv/2019/2%20(164)/11-18%20%D0%93%D1%80%D0%B8%D1%89%D0%B5%D0%BD%D0%BA%D0%BE%20%D0%92.%20%D0%98.,%20%D0%A2%D1%83%D0%BC%D0%B0%D0%BA%D0%BE%D0%B2%20%D0%90.%20%D0%90.,%20%D0%9F%D0%BE%D0%BB%D0%B5%D1%88%D0%BA%D0%B8%D0%BD%20%D0%9C.%20%D0%A1.%20%D0%B8%20%D0%B4%D1%80..pdf |
| Summary: | The article is devoted to modeling the leveling system of
a mobile machine using a hydraulic sensor that controls a
hydromechanical system. The review of modern leveling
systems for mobile machines made it possible to determine
the criteria for assessing the quality of such systems and to
prepare a circuit solution based on a membrane hydraulic
sensor. The developed mathematical model made it possible
to investigate the leveling process under changing conditions
of operation of a steep-sloping mobile machine using
the example of the «Don-1200K» combine. A generalized
mathematical model of the leveling system with a submodel of
the control roll sensor has been developed. A computational
experiment is performed in the Matlab Simulink software
environment based on the modules of the Simscape subroutine
using numerical methods, which allowed to identify processes
under varying loads on the chassis of mobile machine. The
efficiency of the proposed solution is proved by the example
of the hydromechanical system of the Don 1200 steep-slope
combine, the working ranges of the hydromechanical leveling
system and its dynamic qualities were determined. The found
patterns reveal the dependencies of: angular and linear
displacements of the leveling system; pressure changes in
membrane chambers of the roll sensor; fluid flow through the
throttle and the displacement of the control valve spool; loads
on telescopic chassis hydraulic cylinders; speeds of movement
of plungers of hydraulic cylinders of a leveling system.
The results obtained can be used to upgrade existing mobile
machines, as well as to create new steeply technological and
transport machines with improved characteristics. Using the
developed mathematical and computer models will reduce
the time and cost involved in designing mobile equipment
leveling systems, developing prototypes and commissioning. |
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| ISSN: | 1813-8225 2541-7541 |