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
doaj +1 more source
Vision-Based Hybrid Controller to Release a 4-DOF Parallel Robot from a Type II Singularity
Sensors, 2021 The high accuracy and dynamic performance of parallel robots (PRs) make them suitable to ensure safe operation in human–robot interaction. However, these advantages come at the expense of a reduced workspace and the possible appearance of type II ...
José L. Pulloquinga +5 more
doaj +1 more source
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
doaj +1 more source
Screw dislocations in the field theory of elastoplasticity [PDF]
, 2002 A (microscopic) static elastoplastic field theory of dislocations with moment and force stresses is considered. The relationship between the moment stress and the Nye tensor is used for the dislocation Lagrangian.
Lazar, Markus
core +6 more sources
Dynamic Modeling Method of Multibody System of 6-DOF Robot Based on Screw Theory
Machines, 2022 An accurate dynamic model is a prerequisite for realizing precise control of industrial robots. The dynamics research of multi-degree of freedom (DOF) robots is relatively unexplored and needs to be solved urgently.
Jun Cheng +5 more
doaj +1 more source
Spatial Stiffness Analysis of the Planar Parallel Part for a Hybrid Model Support Mechanism
Applied Sciences, 2020 The hybrid aircraft model support mechanism is subjected to six directional forces in the experiment, and high spatial stiffness requirement of the parallel part is the guarantee for the stability of the aircraft model.
Jiawei Gu, Zhijiang Xie, Xiaoyong Wu
doaj +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
Some aspects of the characteristics of vertical screw conveyors for granular material [PDF]
, 1974 A theory has been developed, based on a physical model, to describe the behaviour of non-cohesive granular material inside a vertical screw conveyor. By use of this theory, relationships have been derived between dimensionless numbers for capacity, power
Rademacher, F.J.C.
core +2 more sources
pyScrew4Mobility: Modul Python untuk Penentuan Mobilitas Manipulator Paralel Berbasis Teori Screw
Metal: Jurnal Sistem Mekanik dan Termal, 2020 This paper addresses the mobility determination of parallel manipulators (PMs) using screw theory with algebra methods on an open-source computer algebra package: Sympy (symbolic python).
Adriyan Adriyan
doaj +1 more source
Design of Formed Milling Cutter for Double-Helix Screw Based on Noninstantaneous Envelope Method
Advances in Mechanical Engineering, 2013 The design theory and method of formed milling cutter for double-helix screw of progressing cavity pump are presented. Through analyzing the shape and characteristic parameters of double-helix screw, the helicoids equation and axial curve equation of ...
Yun Li +3 more
doaj +1 more source