Mathematical model of the dynamics varying the radius jib system loader crane at adjustment movement arm and telescopic section

Ловейкін, В. С.; Romasevych, Yu. O.; Spodoba, O.

doi:10.32820/2079-1747-2019-24-40-51

Cited by 2 publications

(4 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To compile the equations of motion of change of departure of the boom system of the loader crane shown in Fig. 1, we use the second-order Lagrange equation [1]:…”

Section: Research Resultsmentioning

confidence: 99%

“…The analysis of study [1][2] on the dynamics of motion of manipulators shows that the scientific and technical problem was solved before, but to the full extent to eliminate the fluctuations of the load failed.…”

Section: Analysis Of Publicationsmentioning

confidence: 99%

“…In the study [6][7][8], the results of recent research, development and implementation of applied optimization methods, issues of formalization, classification and evaluation of complexity of computational optimization problems are obtained. It is confirmed that optimization methods can be used to solve a wide range of applied problems that arise in science, technology, biology, economics, production, etc.…”

Section: Analysis Of Publicationsmentioning

confidence: 99%

“…At this moment in time, one of the main causes occur of dynamic loads is the oscillation of the load on a knuckle joint suspension. In turn, the oscillations of the load depending on the nature of the change in the driving forces in the drive mechanisms (hydraulic cylinders) [1]. The consequence is a decrease in the reliability and performance of loading and unloading operations.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Optimization of the mode of movement of the boom system of the loader crane

Loveikin,

Romasevich,

Spodoba

et al. 2023

OMTC

View full text Add to dashboard Cite

The article presents a method for solving the problem of eliminating vibrations of the load, which is fixed on a rigid articulated suspension at the time of simultaneous movement of two links of the boom system. The essence of the method is to optimize the mode of simultaneous movement of two links of the boom system of the loader crane with horizontal movement of the load during the start-up period. The problem is solved according to two optimization criteria, namely: according to the optimization criterion of the root-mean-square value of the generalized force and the optimization criterion of the root-mean-square value of the power of drive mechanisms. The developed criteria reflect the undesirable properties of the links of the boom system and drive mechanisms, so their value was minimized. The solution of the optimization problem is presented in a discrete form. For this purpose, the particle swarm optimization (ME-PSO) method was used. This helped to obtain discrete values of the kinematic and power characteristics of the boom system of the loader crane. Since the optimization criterion is an integral functional, the methods of the calculus of variations are used for its optimization. The solution of the variational optimization problem is presented in the form of many parametric functions that satisfy the boundary conditions of motion and minimize the obtained dimensionless criteria. For this purpose, the particle swarm optimization (ME-PSO) method was used. This made it possible to obtain the dependence of the optimal energy and power characteristics of the boom system and the drive mechanisms of the loader crane. The mode of movement of the boom system links obtained as a result of optimization improved the power and energy characteristics of the loader crane, which made it possible to increase its reliability and productivity.

show abstract

“…To compile the equations of motion of change of departure of the boom system of the loader crane shown in Fig. 1, we use the second-order Lagrange equation [1]:…”

Section: Research Resultsmentioning

confidence: 99%

Section: Analysis Of Publicationsmentioning

confidence: 99%

Section: Analysis Of Publicationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Optimization of the mode of movement of the boom system of the loader crane

Loveikin,

Romasevich,

Spodoba

et al. 2023

OMTC

View full text Add to dashboard Cite

show abstract

Experimental studies of the motion modes of the main boom and jib of loader crane

Ловейкін¹,

Romasevych²,

Spodoba³

et al. 2021

Tehnìka ta energetika

Self Cite

View full text Add to dashboard Cite

In order to increase the productivity and reliability of a hydraulic-powered loader crane, according to the normative-technical documentation regulating the safe operation of multi-link cranes, it is allowed to combine movements with the simultaneous movement of several links of the boom system. As a result, the paper considers a technique for conducting experimental studies in the plane of changing the boom system of a loader crane with a load. Experimental studies were carried out under the condition of simultaneous angular movement of the main boom and jib. To carry out experimental studies, an experimental installation of a hydraulic-driven loader crane was designed and manufactured. Measuring and recording equipment has been selected and adjusted. In the framework of experimental studies of the dynamics of movement of the boom system of a loader crane with a load, a control system for drive mechanisms has been developed, which makes it possible to realize the optimal modes of movement of the links of the boom system. As a result, experimental studies were carried out under the condition of simultaneous movement of the main boom and jib with a load at the end of the boom system. A package of data on real and optimal modes of movement of the links of the boom system of the loader crane was received. The processed data are presented in graphical form and a comparative analysis with real and optimal modes of movement is carried out. The developed method of experimental research has made it possible to determine the effect of the simultaneous movement of the boom and jib on the oscillations of the load, and the effect of the oscillations of the load on the dynamic loads arising in the boom system and the drive mechanisms of the loader crane.

show abstract

Mathematical model of the dynamics varying the radius jib system loader crane at adjustment movement arm and telescopic section

Cited by 2 publications

References 0 publications

Optimization of the mode of movement of the boom system of the loader crane

Optimization of the mode of movement of the boom system of the loader crane

Experimental studies of the motion modes of the main boom and jib of loader crane

Contact Info

Product

Resources

About