Results 51 to 60 of about 6,838,442 (240)
Effect of atomic scale plasticity on hydrogen diffusion in iron: Quantum mechanically informed and on-the-fly kinetic Monte Carlo simulations [PDF]
, 2008 We present an off-lattice, on-the-fly kinetic Monte Carlo (KMC) model for simulating stress-assisted diffusion and trapping of hydrogen by crystalline defects in iron.
A. Ramasubramaniam +4 more
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A geometrical introduction to screw theory [PDF]
European Journal of Physics, 2013 This work introduces screw theory, a venerable but yet little known theory aimed at describing rigid body dynamics. This formulation of mechanics unifies in the concept of screw the translational and rotational degrees of freedom of the body. It captures a remarkable mathematical analogy between mechanical momenta and linear velocities, and between ...
openaire +2 more sources
Anomalous Defects and Their Quantized Transverse Conductivities
, 1997 Using a description of defects in solids in terms of three-dimensional gravity, we study the propagation of electrons in the background of disclinations and screw dislocations.
A. P. BALACHANDRAN +4 more
core +1 more source
A Screw Theory of Timoshenko Beams
Journal of Applied Mechanics, 2009 In this work, the classic theory of Timoshenko beams is revisited using screw theory. The theory of screws is familiar from robotics and the theory of mechanisms. A key feature of the screw theory is that translations and rotations are treated on an equal footing and here this means that bending, torsion, and extensions can all be considered together ...
J. M. Selig, Xilun Ding
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Screw analysis and experimental study of spatial noncircular gear compound transmission
PLoS ONE, 2022 Curve face gear pair and noncircular bevel gear pair are collectively referred to as spatial noncircular gear pair (SNCGP). Different from the traditional gear transmission with fixed shafts, spatial noncircular gear (SNCG) compound transmission can ...
Yongquan Yu, Chao Lin
doaj +2 more sources
A New Method for Displacement Modelling of Serial Robots Using Finite Screw
MachinesKinematics is a hot topic in robotic research, serving as a foundational step in the synthesis and analysis of robots. Forward kinematics and inverse kinematics are the prerequisite and foundation for motion control, trajectory planning, dynamic ...
Feiyang Xue +4 more
doaj +1 more source
Studies on positive conveying in helically channeled single screw extruders [PDF]
, 2012 A solids conveying theory called double-flight driving theory was proposed for helically channeled single screw extruders. In the extruder, screw channel rotates against static barrel channel, which behaves as cooperative embedded twin-screws for the ...
K. J. Wang +4 more
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Dynamic modelling and force analysis of a knuckle boom crane using screw theory
Mechanism and Machine Theory, 2019 This article presents a method for determination of dynamic reaction forces in knuckle boom cranes. The method is based on the dynamic modelling procedure, which is an extension of Kane’s equations of motion.
Andrej Cibicik, O. Egeland
semanticscholar +1 more source
Type synthesis of 6-DOF mobile parallel link mechanisms based on screw theory
Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2022 Mobile parallel mechanisms (MPMs), which are parallel mechanisms with moveable bases, have previously been proposed to resolve the limited workspace of conventional parallel mechanisms.
Siying LONG +2 more
doaj +1 more source
Kinematic Analysis of Parallel Mechanism for Multi-link Suspension
Jixie chuandong, 2022 Parallel mechanism has the advantages of large stiffness，fast response and high precision， which is suitable for suspension field. A new type of parallel mechanism for automobile multi-link suspension is proposed， the kinematic model of the mechanism is ...
Jiang Mao, Xiaofei Zhu, Licheng Li
doaj