Results 51 to 60 of about 797 (160)

Modeling of Mechanisms and Robotic Manipulators Taking into Account Distributed Inertia of Motion

open access: yesEngineered Science
Strength and stiffness assessment of rod mechanisms and robotic manipulators is commonly performed using finite element methods (FEM), while motion-induced inertia is often represented by resultant forces and moments applied at link centers of mass. This
Yerbol Temirbekov   +5 more
doaj   +1 more source

Application of Non‐Isothermal Network Theory With Curved‐Channel Element Characteristics to Predict Melt Conveying in High‐Performance Single‐Screw Extruders

open access: yesJournal of Polymer Science, EarlyView.
This study presents a fast and accurate calculation tool to predict conveying of polymer melts in single‐screw extruders. Integrating generalized sub‐models into network theory allows to represent the complex screw shapes and material behavior more realistically. Tests on an industrial extruder show close agreement with experiments, outperforming older
Daniel Herzog   +3 more
wiley   +1 more source

On the dynamic analysis of rotating shafts using nonlinear superelement and absolute nodal coordinate formulations

open access: yesAdvances in Mechanical Engineering, 2017
In this article, a superelement formulation and a quadratic beam element based on the absolute nodal coordinate formulation are applied to the simulation of high-speed rotating structures.
Jia Wang   +4 more
doaj   +1 more source

Climate‐Driven Mangrove Dieback and Recovery: A Case Study in Albert and Leichhardt Rivers, Australia

open access: yesRemote Sensing in Ecology and Conservation, EarlyView.
Cycles of dieback and recovery drove mangrove forest dynamics at the Albert and Leichhardt Rivers (Gulf of Carpentaria, Queensland, Australia) over 36 years (1987–2023). Landward margins were the most affected by reduced tidal inundation when the alignment of low lunar declination suppressed tidal range and extreme El Niño phases lowered mean sea level.
Rogerio Victor S. Gonçalves   +4 more
wiley   +1 more source

Dynamic Analysis and Experiments on the Assembly Control of Planar Deployable Modules

open access: yesSpace: Science & Technology
On-orbit assembly via deployable modules offers a promising solution for constructing large-scale space infrastructure beyond the limitations of launch vehicle volume.
Quanchen Duan, Jialiang Sun, Haiyan Hu
doaj   +1 more source

Reverse engineering strut‐and‐tie models for assessing reinforced concrete structures

open access: yesStructural Concrete, EarlyView.
Abstract Strut‐and‐tie models enable the design of reinforced concrete structures with static or geometrical discontinuities, providing interpretability and control over the load path. These models are valuable for designing discontinuity regions of new structures and for validating nonlinear finite‐element analysis results. However, developing a strut‐
Karin Yu, Walter Kaufmann
wiley   +1 more source

Dynamics and experiments of a tendon-actuated flexible robotic arm for capturing a floating target

open access: yesDefence Technology
Reusable and flexible capturing of space debris is highly required in future aerospace technologies. A tendon-actuated flexible robotic arm is therefore proposed for capturing floating targets in this paper.
Xin Xia, Yunpeng Sun, Jialiang Sun
doaj   +1 more source

Rescaling the Developmental State: Competitive Shrinkage Governance and the Spatial Restructuring of Higher Education in South Korea

open access: yesAsia Pacific Viewpoint, EarlyView.
ABSTRACT Against the backdrop of sustained demographic contraction across the Asia‐Pacific, the developmental state (DS) paradigm, long premised on growth, faces profound challenges. While existing research on shrinking regions focuses on urban planning, little attention has been paid to how the state restructures its spatial power under contraction ...
Li Mingfeng
wiley   +1 more source

Dynamics and Staged Deployment Strategy for a Spinning Tethered Satellite System

open access: yesAerospace
This paper investigates flexible multibody dynamic modeling and a staged deployment strategy for large-scale spinning tethered satellite systems, targeting deployment instability, inefficiencies, and tension-induced fracture risks.
Yue Zhang   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy