№67-14

Energy efficient structure and hardware of bucket excavator subsystem and hydraulic control system

А. Malienko¹, G. Diachenko¹, I. Lutsenko¹, S. Fedoriachenko¹, К. Ziborov¹, I. Koshelenko¹

¹Dnipro University of Technology, Dnipro, Ukraine

Coll.res.pap.nat.min.univ. 2021, 67:165-178

https://doi.org/10.33271/crpnmu/67.165

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ABSTRACT

Goal. To analyze the control subsystems of the bucket excavator, based on the features of energy-efficient structure and management of the object.

The research methodology consists in the analysis of a certain range of energy efficient control, as the intensity of the load is closely correlated with the performance of the bucket excavator at maximum load and has a significant impact on the energy efficient structure. Thus, the relevance of the presented research is to establish the parameters for regulating the energy-efficient load on the executive body of the excavator at maximum load under the conditions of hydraulic control. To solve this problem, an extreme control control system is used, the specifics of which will be determined by the characteristics of the control object.

Research results. It is established that one of the most effective is an algorithm based on information about the structure of the working material and the dependence of the parameters on the input information of the control body on the hydraulic system of the excavator ..

Scientific novelty. The problem of optimizing the process of excavator hydraulics control taking into account the crushing material and its impact on the system of energy efficiency of the excavator drive is considered. It is noted that in real conditions there are no ideal control systems for excavator hydraulics. Analysis of the work and the calculation experiment shows that the control object can be represented as a second-order aperiodic link. system fluctuations. As a result, a study of the control object obtained dynamic characteristics, data for the construction of static characteristics and verification data. Thus, the control system of the bucket excavator subsystem and the hydraulic control system providing the most intensive parameters at the maximum load on the working body of the excavator is offered in the work.

Practical meaning. It is established that the process of finding the optimal energy-efficient load on the hydraulic system should be given a step-by-step nature. The magnitude of the step on the optimization parameter and other variables of the search procedure should be selected based on the minimum total error, and maintaining the optimal energy efficiency of the system.

Keywords: Energy efficient structure, excavator hydraulic system, control systems, model identification, hardware.

References

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   https://doi.org/10.33271/crpnmu/62.156