Results 21 to 30 of about 1,186,412 (296)

Advanced Multi-Body Modelling of DCCSS Isolators: Geometrical Compatibility and Kinematics

open access: yesBuildings, 2021
The effectiveness of Double Concave Curved Surface Sliders (DCCSS), which initially spread under the name of Double Friction Pendulum (DFP) isolators, was already widely proven by numerous experimental campaigns carried out worldwide.
Vincenzo Bianco   +2 more
doaj   +1 more source

A Study on Anti-Shock Performance of Marine Diesel Engine Based on Multi-Body Dynamics and Elastohydrodynamic Lubrication

open access: yesApplied Sciences, 2021
Diesel engine anti-shock performance is important for navy ships. The calculation method is a fast and economic way compared to underwater explosion trial in this field.
Liang Chen   +4 more
doaj   +1 more source

Quantum information and physics: Some future directions [PDF]

open access: yes, 1999
I consider some promising future directions for quantum information theory that could influence the development of 21st century physics. Advances in the theory of the distinguishability of superoperators may lead to new strategies for improving the ...
Preskill, John
core   +1 more source

Generation Mechanism of Linear and Angular Ball Velocity in Baseball Pitching

open access: yesProceedings, 2018
The purpose of this study was to quantify the functional roles of the whole-body’s joint torques including fingers’ joints in the generation of ball speed and spin during baseball fast-ball pitching motion. The dynamic contributions of joint torque term,
Sekiya Koike   +2 more
doaj   +1 more source

Integration of vertical COM motion and angular momentum in an extended Capture Point tracking controller for bipedal walking [PDF]

open access: yes, 2012
In this paper, we demonstrate methods for bipedal walking control based on the Capture Point (CP) methodology. In particular, we introduce a method to intuitively derive a CP reference trajectory from the next three steps and extend the linear ...
Englsberger, Johannes, Ott, Christian
core   +1 more source

Dynamics Simulation Analysis of Single Row Four Point Contact Ball Slewing Bearing

open access: yesJixie chuandong, 2020
Based on multi-body dynamics method and Hertz contact theory, the Impact function is applied to define four-point contact of steel ball in slewing bearing and meshing contact action of straight teeth with internal teeth.
Jian Zhao, Tingqiang Yao, Ruibo Chen
doaj  

Variational multirate integration in multi‐body dynamics [PDF]

open access: yesPAMM, 2016
AbstractFor systems that contain slow and fast dynamics, variational multirate integration schemes are used. These schemes split the system into parts which are simulated using two time grids consisting of micro and macro nodes. This formulation can be extended for multi‐body systems.
Tobias Gail   +2 more
openaire   +1 more source

Numerical study of railway wheel wear on roller rigs

open access: yesNihon Kikai Gakkai ronbunshu, 2020
The dynamic behavior of railway vehicle is often tested by roller rig equipment and this test is very useful. However, it is known that contact condition on roller rig is different from the case that wheels run on rail.
Satoshi HARA   +3 more
doaj   +1 more source

Oscillators: Phenomenological mappings and analogies: Second part: Structural analogy and chains [PDF]

open access: yesScientific Technical Review, 2015
New analytical and numerical results of dynamics for both linear and nonlinear system with two degrees of freedom are presented. For the mechanical chain system with two degrees of freedom, oscillations are investigated analytically and numerically with ...
Hedrih-Stevanović Katica   +4 more
doaj  

Hydrodynamic model for expansion and collisional relaxation of x-ray laser-excited multi-component nanoplasma [PDF]

open access: yes, 2016
The irradiation of an atomic cluster with a femtosecond x-ray free-electron laser pulse results in a nanoplasma formation. This typically occurs within a few hundreds femtoseconds.
Beata Ziaja   +4 more
core   +1 more source

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