Studying coefficient of increase of the support surface after deployment of a mobile hoist

Kyrychenko, I. K.; Rieznikov, Oleksandr; Rukavishnikov, Yuri; Knyshenko, Anton

doi:10.30977/bul.2219-5548.2021.95.0.26

Cited by 2 publications

(2 citation statements)

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“…Протягом багатьох років викладачами і студентами механічного факультету ХНАДУ розроблялися комп'ютерні моделі різних за своїм технологічним призначенням машин. Метою цього процесу було створення геометричних моделей машин та відтворення деяких кінематичних і динамічних властивостей цих машин та їхніх окремих елементів [6][7][8][9][10][11][12][13]. Вважаємо за необхідне ознайомити фахівців з досягнутими результатами і розпочати обговорення у колі тих, хто займається 3D-моделюванням підйомно-транспортних, будівельних, дорожніх і комунальних машин або інших технічних об'єктів.…”

Section: мета та постановка завданняunclassified

Opportunities and limitations of computer simulation of technological machines

Kyrychenko,

Chernikov

2023

Bulletin of KhNAHU

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Problem. Mobile lifts with working platforms have found wide application in various fields of industry. One of the main requirements when designing such machines is to ensure the stability and trouble-free performance of technological operations. The article presents the results of the development of a digital three-dimensional model of such a machine, and also describes virtual studies on controlling the machine's movement at different positions of the running gear. Goal. It was decided to divide the entire set of tasks to be solved into clusters in which it is possible to obtain reliable information with minimal time for the development of the models, as well as with the least load of the software. The main task was to develop a computer model of the running gear to study the maneuverability of the machine. Methodology. Geometric modeling was performed with limited initial data, the properties of the materials used for parts were not taken into account, and welding was not modeled. However, the geometry of the frame and all components was reproduced almost completely in the dimensions and configurations of the real object. Results. The computer model enabled establishing of the dependence of the machine's turning radii from the geometric design parameters of the chassis, as well as from the turning patterns and position of the longitudinal beams. Originality. The computer model made it possible to maneuver in three independent schemes: the classic 4x2 wheeled vehicle turning mechanism, turning with all four wheels (on the front and rear axles in opposite directions), and when all wheels turn in one direction, the so-called "crab stroke". Practical value. The proposed models and algorithms will significantly speed up the design process for this class of vehicles.

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Section: мета та постановка завданняunclassified

Opportunities and limitations of computer simulation of technological machines

Kyrychenko,

Chernikov

2023

Bulletin of KhNAHU

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“…Питання визначення стійкості МПРП розглянуті в публікаціях [4][5]. Детально проаналізовані причини виникнення аварійних ситуацій підйомно-транспортних машин у працях [6][7][8].…”

Section: аналіз публікаційunclassified

Research of Oscillation Processes of a Mobile Lift Working Platform

Kyrychenko¹,

Reznikov²,

Chernikov³

et al. 2022

Bulletin of KhNAHU

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Problem. The work is a continuation of research in the field of studying the regularities of the functioning of mobile lifts with working platforms (MLWP), determining the kinematic characteristics of the equipment during the execution of certain technological operations and their influence on oscillatory processes. Goal. The main goal of this work is to compare the results of research performed on computer models and on a full-scale model of the machine. Methodology. The purpose of this work was to develop a suitable computer model of MLWP and investigate the influence of the parameters of the mobile lift and the features of the machine's work process on the oscillatory processes, as well as to compare these results with experimental data obtained on bench equipment. One of the solved problems is the development of a computer model of MLWP, which allows to adequately simulate the load modes of the machine and conduct research on the influence of the operating modes on the oscillatory phenomena observed during the execution of technological processes. Results. Also, the developed model will be useful in determining the reach zones of the selected equipment during installation work in the time of construction or maintenance of buildings, when performing tasks in the communal economy, servicing infrastructure objects of road construction, etc. Originality. The paper proposes a possible way of researching the influence of the parameters of the mobile lift and the features of the management of the working equipment on the kinematic and power characteristics that determine the oscillating processes in metal structures during technological operations. Practical value. The developed computer model and the comparison of the results obtained with its help with experimental data obtained on bench equipment make it possible to predict load modes in the process of designing machines of a similar design.

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Studying coefficient of increase of the support surface after deployment of a mobile hoist

Cited by 2 publications

References 0 publications

Opportunities and limitations of computer simulation of technological machines

Opportunities and limitations of computer simulation of technological machines

Research of Oscillation Processes of a Mobile Lift Working Platform

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