Results 21 to 30 of about 212,383 (275)

Calculation of the Required Power of Electric Motors for Overhead Crane Movement Mechanisms Using the Statistical Method

Problems of the Regional Energetics
The aim of this study is to determine the functional dependence for the calculation of the re-quired power of the electric motor of the traveling mechanism of the overhead traveling crane on the load capacity and span. The set aim is achieved by solving the following problems: figur-ing out how to calculate the power of the electric motor of the ...
Volodymyr Kovalenko Volodymyr Kovalenko, Oleksii Zhuravel, Всеволод Вікторович Стрижак, S.P. Iglin, Марьяна Георгиевна Стрижак   +4 more
semanticscholar   +7 more sources

REDUCTION OF DYNAMIC LOADS DURING BRAKING OF THE OVERHEAD CRANE MOVEMENT MECHANISM

Bulletin of the National Technical University «KhPI». Series: Automobile and Tractor Construction
This study investigates the movement of a bridge crane during the braking of the travel mechanism. Complex dynamic phenomena accompany this process. The presented dynamic model of the crane allows for a deeper analysis of the influence of various factors on the operation of the travel mechanism, particularly the interaction of massive moving elements ...
В. С. Ловейкін, Yuriy Chоvnyuk, Ivan Kadykalo, Viktor Krushelnytskyi   +3 more
semanticscholar   +6 more sources

METHOD OF THE DRIVE POWER DETERMINATION OF THE MECHANISMS OF THE BRIDGE CRANE MOVEMENT CONSIDERING THE ROLLING FRICTION

Nauka ta progres transportu, 2015
Purpose. The value of drive resistance to its movement is the main parameter at calculating the drive power of bridge crane. The value of the wheel rolling friction on the rails is one of the important parts of the resistance to movement. It is necessary
V. M. Bohomaz, L. M. Bondarenko, K. Ts. Hlavatskyi, K. O. Sokol   +3 more
doaj   +4 more sources

PARAMETRIC OPTIMIZATION OF FREQUENCY-CONTROLLED START-UP OF DYNAMIC SYSTEM "TROLLEY-LOAD" OF TOWER CRANE TROLLEY MOVEMENT MECHANISM [PDF]

Naukovì Dopovìdì Nacìonalʹnogo Unìversitetu Bìoresursiv ì Prirodokoristuvannâ Ukraïni
In the scientific article, a scientific and applied problem is solved, which allows to minimize the dynamic and energy parameters of the frequency-controlled drive of the dynamic "cart-load" system of the tower crane flight change mechanism during the transient start-up mode.
Yuriy Romasevych, V. S. Loveikin Loveikin, O. V. Stekhno   +2 more
semanticscholar   +3 more sources

Maintenance of working capacity of movement mechanism of load trolley with linear traction electric drive of bridge type crane. [PDF]

IOP Conference Series: Earth and Environmental Science, 2017
The article considers the influence of the air gap size between the linear motor elements on the stability of the traction drive of the movement mechanism of the trolley of the bridge type crane. The main factors affecting the air gap size and the causes of their occurrence are described.
K.A. Goncharov, I.A. Denisov
semanticscholar   +3 more sources

MINIMIZATION OF THE DRIVE TORQUE OF THE TROLLEY MOVEMENT MECHANISM DURING TOWER CRANE STEADY SLEWING

Journal of Theoretical and Applied Mechanics, 2023

semanticscholar   +3 more sources

Dynamic analysis of the joint movement of derricking mechanism and lifting mechanism of a load during a steady-state turn of a jib crane

Strength of Materials and Theory of Structures
Increasing the productivity of jib cranes is an urgent problem of improving their operation. Combining the work of separate mechanisms is one of the ways to increase the productivity of jib cranes. The aim of the study is to build a mathematical model and conduct a dynamic analysis of the crane jib system with simultaneous operation of the derricking ...
В. С. Ловейкін, Yuriy Romasevych, А. В. Ловейкін, Anastasiia Liashko, Kostiantyn Pochka   +4 more
semanticscholar   +6 more sources

Dynamic analysis of tower crane movement mechanism [PDF]

IMK-14 - Istrazivanje i razvoj, 2018
Evgenij Kudryavtsev
semanticscholar   +3 more sources

Development of a correction unit based on fuzzy logic for the control system of the load movement mechanism of an overhead crane

Power engineering: research, equipment, technology
The purpose. Introduction into the bridge movement drive control system of a bridge support movement synchronization unit, developed in stages on the basis of fuzzy logic to eliminate bridge tilt arising as a result of the movement of a flexible suspension load along the bridge by a trolley.Methods. The objectives set in the study were achieved through
Alexey Sinyukov, Tatyana Sinyukova, Elena Gracheva, А. А. Сафронов   +3 more
semanticscholar   +4 more sources

Dynamic analysis of the joint movement of the hoisting and slewing mechanisms of a boom crane [PDF]

Naukovij žurnal «Tehnìka ta energetika», 2023
To increase the productivity of boom cranes, the operation of individual mechanisms is combined. At the same time, dynamic loads on structural elements, drive mechanisms and loads on a flexible suspension increase, which reduces the reliability of crane operation and increases energy losses.
Viatcheslav Loveikin, Yuriy Romasevych, Ivan Kadykalo   +2 more
openalex   +3 more sources