Results 1 to 10 of about 360,412 (305)

No-backlash control system by two-motor drive (The analysis and experiments on the influence of the viscous friction difference between the two motors)

open access: yesNihon Kikai Gakkai ronbunshu, 2022
A no-backlash drive control technique which used two motors for forward rotation and reverse rotation to drive one load so as to cancel backlash has been using the same motor so far.
Akihiro MAEKAWA, Kento KOKUBO
doaj   +1 more source

Mechanical Vibration Damping and Compression Properties of a Lattice Structure [PDF]

open access: yesMaterials, 2021
The development of additive technology has made it possible to produce metamaterials with a regularly recurring structure, the properties of which can be controlled, predicted, and purposefully implemented into the core of components used in various industries.
Katarina Monkova   +4 more
openaire   +4 more sources

Vibration response difference of caving mechanism under coal rock impact based on mechanical–hydraulic coupling

open access: yesScientific Reports, 2023
Top coal caving in fully mechanized caving mining will cause an irregular impact on the caving mechanism of hydraulic support. The vibration response of the caving mechanism varies under different forms of impact.
Yanpeng Zhu   +4 more
doaj   +1 more source

Dynamic modeling and vibration characteristics analysis of parallel antenna [PDF]

open access: yesMechanical Sciences, 2022
Research on the vibration characteristics of the mechanical systems is a necessary step for the stable and reliable operation of high-end equipment.
G. Zhang, J. He, J. Guo, X. Xia
doaj   +1 more source

Optimization method for main parameters of vibration protection system in motor grader seat with quasi-zero static characteristic

open access: yesВестник СибАДИ, 2023
Introduction. One of the urgent tasks facing the developers of land transport and technological machines is to reduce the vibration effects on the human operator.
M. S. Korytov   +2 more
doaj   +1 more source

Recent Advances in Quasi-Zero Stiffness Vibration Isolation Systems: An Overview and Future Possibilities

open access: yesMachines, 2022
In recent decades, quasi-zero stiffness (QZS) vibration isolation systems with nonlinear characteristics have aroused widespread attention and strong research interest due to their enormous potential in low-frequency vibration isolation.
Zhaozhao Ma, Ruiping Zhou, Qingchao Yang
doaj   +1 more source

Discharge of a granular silo under mechanical vibrations [PDF]

open access: yesEPJ Web of Conferences, 2021
In this paper, we study the flow rate of model granular material in a silo under the influence of mechanical vibrations. Experimental measurements and discrete element simulations (DEM) are performed in a quasi-2D silo. The influence on the flow rate of the opening size and the vibration applied on the entire silo is studied.
Pascot, Arthur   +2 more
openaire   +3 more sources

No-backlash control system by two-motor drive (The analyses of backlash occurrence mechanism)

open access: yesNihon Kikai Gakkai ronbunshu, 2015
We analyze backlash occurrence mechanism of a no-backlash drive control technique in which two motors drive a load axis, as one is for a plus direction and another is for a minus direction, into the simulation and the experiment.
Akihiro MAEKAWA, Yusuke SUGIURA
doaj   +1 more source

Vibrational Conical Intersections as a Mechanism of Ultrafast Vibrational Relaxation

open access: yesPhysical Review Letters, 2012
Presenting true crossings of adiabatic potential energy surfaces, conical intersections are a paradigm of ultrafast and efficient electronic relaxation dynamics. The same mechanism is shown to apply also for vibrational conical intersections, which may occur when two high-frequency modes (such as OH stretch vibrations) are coupled to low-frequency ...
Hamm, Peter, Stock, Gerhard
openaire   +4 more sources

No-backlash control system by two-motor driver (The analysis and experiments on total current reduction)

open access: yesNihon Kikai Gakkai ronbunshu, 2017
A no-backlash drive control technique in which two motors drive a load axis, as one is for a forward direction and another is for a reverseone,hastwo problems :1)the drive system has a remarkable power loss, 2) the 1st natural frequency of the drive ...
Akihiro MAEKAWA, Yusuke SUGIURA
doaj   +1 more source

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