Results 1 to 10 of about 5,630,477 (241)
An Application of Screw Theory to the Jerk Analysis of a Two-Degrees-of-Freedom Parallel Wrist
Robotics, 2015 In this work the velocity, acceleration, and jerk analyses of a two-degrees-of-freedom parallel wrist are approached by means of the theory of screws. For the sake of completeness, the finite kinematics of the manipulator is also investigated.
Jaime Gallardo-Alvarado +3 more
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Calculation Method of Bearing Capacity of Screw Pile Based on Unified Strength Theory
Shanghai Jiaotong Daxue xuebao, 2022 Based on the unified strength theory and the Terzaghi limit equilibrium theory, the ultimate bearing capacity of screw pile has been deduced. The method to determine the critical pitch and calculate the ultimate bearing capacity of the screw pile in two ...
MA Jiakuan, LUO Lijuan, REN Xiang, SHI Hang, YIN Yimo
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Novel Reconfigurable Spherical Parallel Mechanisms with a Circular Rail
Robotics, 2022 The COVID-19 pandemic has placed unprecedented stress on the world healthcare system and demonstrated the need for modern automated robotic solutions for numerous medical applications.
Pavel Laryushkin +3 more
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IEEE Access, 2023 The closed-form solution of each rotation joint angle is the most direct and convenient method for humanoid robot arms to imitate the real-time motion of the human arm.
Feifei Zhong +5 more
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Micromachines, 2022 The Ilizarov external fixator plays an important role in the correction of complex malformed limbs. Our purpose in this work was to reveal the transmission of adjustable forces between the external fixator and the broken bone, and express the stress ...
Peng Su +4 more
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Robotics, 2021 This paper presents a screw theory approach for the computation of the instantaneous rotation centers of indeterminate planar linkages. Since the end of the 19th century, the determination of the instantaneous rotation, or velocity centers of planar ...
Juan Ignacio Valderrama-Rodríguez +3 more
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Machines, 2023 In the present day, unmanned aerial vehicle (UAV) technology is being used for a multitude of inspection operations, including those in offshore structures such as wind-farms.
Pedro Pereira +2 more
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Dynamic Interaction of a Heavy Crane and a Ship in Wave Motion [PDF]
Modeling, Identification and Control, 2018 Previous work on the dynamics of vehicle-manipulator systems is extended to offshore ships with heavy cranes. The proposed method is based on a Newton-Euler formulation where the forces of constraint are eliminated using projection matrices based on the ...
Geir Ole Tysse, Olav Egeland
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A Mathematical Modeling and Analysis Method for the Kinematics of a Maglev Train
Machines, 2022 In recent years, more and more countries are paying attention to maglev transportation because of its outstanding advantages. However, because the structure of a maglev train is more complex than a wheel-rail train, there is no systematic theory method ...
Mingxin Liu +4 more
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Parametric analysis and design of straight screw extruder for solids compaction
Journal of King Saud University: Engineering Sciences, 2019 Screw extruders are commonly used in the food and polymer industries. Scientifically designed screw extruders for biomass compaction equipment are required to limit the existing problems faced in the industry. In this study, models based on the plug flow
Joseph I. Orisaleye, Sunday J. Ojolo
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