Results 1 to 10 of about 66,347 (233)

Dynamics design of mechanism of crane trolley movement [PDF]

open access: yesTransport, 2006
A crane trolley with a hanging oscillating load was considered. Normal and tangential acceleration of the load and difference between the weight of the load and the strain of the rope are taken into account. Three differential dynamic equations were made.
V. Demokritov, A. Oleshkevich
doaj   +7 more sources

System of consistent rotation of speeds of drive electric motors of movement mechanisms of overhead cranes [PDF]

open access: yesE3S Web of Conferences, 2023
work is devoted to the study of the electric drive of overhead cranes and the creation of a new reliable system of a multi-motor electric drive with a coordinated rotation of the speeds of the drive motors of the movement mechanisms of overhead cranes ...
Abidov K.   +3 more
doaj   +2 more sources

Minimization of oscillations of the tower crane slewing mechanism in the steady-state mode of trolley movement [PDF]

open access: yesArchive of Mechanical Engineering, 2023
In the present study, the problem of optimization of the motion mode of the tower crane's slewing mechanism in the steady-state mode of trolley movement is stated and solved.
Viacheslav Loveikin   +4 more
doaj   +2 more sources

Probability of emergence of failures of the movement mechanism of the bridge hook electric crane at operation [PDF]

open access: yesНаучно-технический вестник Брянского государственного университета, 2018
Given the application of the methods of analysis of types and consequences of failures (FMEA analysis) to assess the technical risk of occurrence of emergency situations during the operation of the lifting mechanism electrical hook bridge crane.
Ritenman I.L.   +2 more
doaj   +2 more sources

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

open access: yesNauka 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   +3 more
doaj   +3 more sources

The likelihood of failures in the operation of the mechanism of movement of a cargo truck electrical hook bridge crane [PDF]

open access: yesНаучно-технический вестник Брянского государственного университета, 2017
Given the application of the methods of analysis of types and consequences of failures (FMEA analysis) to assess the technical risk of occurrence of emergency situations during the operation of the lifting mechanism electrical hook bridge crane.
Ritenman I.L.   +2 more
doaj   +3 more sources

Responses to extreme drought in wintering waterbirds: a multi-species approach [PDF]

open access: yesFrontiers in Zoology
Background Climate change and anthropogenic activities are accelerating environmental changes, challenging wild animals’ survival. Behavioral plasticity, such as adjusting habitat selection and foraging activity, is a key mechanism for responding to ...
Chenxi Wang   +3 more
doaj   +2 more sources

Optimization of the trolley mechanism acceleration during tower crane steady slewing [PDF]

open access: yesArchive of Mechanical Engineering, 2022
The article describes optimization of the process of acceleration of the tower crane trolley movement mechanism during the steady mode of the slewing mechanism.
Viacheslav Loveikin   +3 more
doaj   +1 more source

The dynamic analysis of the joint trolley movement and hoisting mechanism in the tower crane

open access: yesStrength of Materials and Theory of Structures, 2022
The task of this paper is to research the simultaneous use of trolley and hoisting mechanism by the tower crane with a beam jib. To conduct research, a dynamic model of joint movement of mechanisms has been developed, which takes into account the main movement of drive mechanisms and oscillating movement of the load on a flexible suspension and links ...
Viacheslav Loveikin   +4 more
openaire   +3 more sources

Analysis of the effectiveness of using the block for limiting the vibrations of the load on the mechanism of movement of the bogie with various control systems [PDF]

open access: yesE3S Web of Conferences, 2020
Damping load vibrations in an electric crane drive is an urgent topic for research. The swinging load has a negative effect on the mechanical part of the device, leading to its wear, and on the entire control system as a whole.
Meshcheryakov Viktor   +3 more
doaj   +1 more source

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