Results 21 to 30 of about 15,357 (276)

Overhead object projector: OverProjNet

open access: yesIntelligent Systems with Applications, 2023
Despite the availability of preventive and protective systems, accidents involving falling overhead objects, particularly load-bearing cranes, still occur and can lead to severe injuries or even fatalities.
Poyraz Umut Hatipoglu   +2 more
doaj   +1 more source

The Time Delay Filtering Method for Cancelling Vibration on Overhead Transportation Systems Modelled as a Physical Pendulum

open access: yesShock and Vibration, 2007
An investigation of the response of a physical pendulum to time delay filtered inputs was conducted. It was shown that the physical pendulum model is more accurate than the simple pendulum for modelling the dynamic response of overhead cranes with loads ...
G. Peláez   +3 more
doaj   +1 more source

Online weight estimation in a robotic gripper arm [PDF]

open access: yes, 2016
This paper presents a novel methodology for online, fast and accurate weight estimation technique in a robotic gripper arm. The laboratory setup is inspired from several real life applications of weight estimation in moving cranes, e.g.
Copot, Dana   +3 more
core   +2 more sources

Modeling and energy-based fuzzy controlling for underactuated overhead cranes with load transferring, lowering, and persistent external disturbances

open access: yesAdvances in Mechanical Engineering, 2017
In practice, vertical load motion is always involved in overhead cranes. In this case, the cable length turns from a constant to a variable, which may induce large amplitude load swing and make it more challenging to develop an appropriate controller ...
Menghua Zhang   +5 more
doaj   +1 more source

Overhead crane anti-swing system based on the Pontryagin’s maximum principle

open access: yesTransport, 2015
Overhead cranes are widely used at industrial enterprises for transportation of materials and products. They are successfully adaptable to technological processes used at an enterprise and their exploitation is inexpensive; in addition, the price of ...
Bronislovas Spruogis   +3 more
doaj   +1 more source

Vibration control of an overhead crane by elimination of the natural frequency component

open access: yesNihon Kikai Gakkai ronbunshu, 2018
Overhead traveling cranes are widely used at ports and factories, and they play an important role in mass transportation systems. The main problem with such cranes is that residual vibration of the cargo often occurs at the end of transportation.
Kai KURIHARA   +4 more
doaj   +1 more source

Dynamic analysis and control PID path of a model type gantry crane

open access: yes, 2017
This paper presents an alternate form for the dynamic modelling of a mechanical system that simulates in real life a gantry crane type, using Euler's classical mechanics and Lagrange formalism, which allows find the equations of motion that our model ...
Lopez-Suspes, Framsol   +1 more
core   +1 more source

Overhead Crane Dynamics Simulation

open access: yesНаучно-технический вестник Брянского государственного университета, 2015
Overhead crane in normal operation conditions loading simulation methodic and models are present in this article. Simulation results for real overhead crane are received. This research was supported by the grant no. MK-92.2014.8 of the President of Russian Federation for young scientist support.
openaire   +2 more sources

An Anti-Swing Closed-Loop Control Strategy for Overhead Cranes

open access: yesApplied Sciences, 2018
The payload swing of an overhead crane needs to be controlled properly to improve efficiency and avoid accidents. However, the swing angle is usually very difficult to control to zero degrees or for it to even remain within an acceptable range because ...
Xianghua Ma, Hanqiu Bao
doaj   +1 more source

Position-Commanding Anti-Sway Controller for 2-D Overhead Cranes Under Velocity and Acceleration Constraints

open access: yesIEEE Access, 2023
This paper proposes an anti-sway controller for two-dimensional overhead cranes. The controller is of the position-commanding type, i.e., it sends position commands to the position-controlled trolley, and it uses the sensor information of the payload ...
Ryo Nishimoto, Ryo Kikuuwe
doaj   +1 more source

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