Results 21 to 30 of about 10,556 (246)

Reversible Transition between Discrete and 1D Infinite Architectures: A Temperature‐Responsive Cu(I) Complex with a Flexible Disilane‐Bridged Bis(pyridine) Ligand

Chemistry – A European Journal, Volume 29, Issue 38, July 6, 2023., 2023
Thermoresponsive molecular structure based on a disilane‐bridged bis(pyridyl) ligand and CuI is reported. Single‐crystal X‐ray analysis revealed that there were two polymorphs in the Cu(I) complex: octanuclear copper(I) complex at 20 °C and 1D staircase copper(I) polymer complex at −173 °C. The formation of these polymorphs is due to the flexibility of
Yongjin Zhao, Toyotaka Nakae, Satoshi Takeya, Mineyuki Hattori, Daisuke Saito, Masako Kato, Yoshinori Ohmasa, Shun Sato, Osamu Yamamuro, Tomasz Galica, Eiji Nishibori, Shiori Kobayashi, Tomohiro Seki, Teppei Yamada, Yoshinori Yamanoi   +14 more
wiley   +1 more source

Continuum Robots: An Overview

Advanced Intelligent Systems, Volume 5, Issue 5, May 2023., 2023
With slender, flexible bodies, continuum robots achieve a long reach through narrow and tortuous environments, enabling otherwise unachievable tasks for medical, industrial, and service applications. The recent surge in research on these robots leads to significant advances in design, modeling, and control methods, here examined with a comprehensive ...
Matteo Russo, Seyed Mohammad Hadi Sadati, Xin Dong, Abdelkhalick Mohammad, Ian D. Walker, Christos Bergeles, Kai Xu, Dragos A. Axinte   +7 more
wiley   +1 more source

Application of stable inversion to flexible manipulators modeled by the absolute nodal coordinate formulation

GAMM-Mitteilungen, Volume 46, Issue 1, March 2023., 2023
Abstract Compared to conventional robots, flexible manipulators offer many advantages, such as faster end‐effector velocities and less energy consumption. However, their flexible structure can lead to undesired oscillations. Therefore, the applied control strategy should account for these elasticities. A feedforward controller based on an inverse model
Svenja Drücker, Robert Seifried
wiley   +1 more source

Reduction of degrees of Freedom in three-dimensional ANCF beam of 24-DOF beam element by component mode synthesis

Nihon Kikai Gakkai ronbunshu, 2014
This paper describes how to reduce degrees of freedom for the absolute nodal coordinate formulation (ANCF) of three-dimensional beam made up of 24 degrees of freedom beam elements by applying the component mode synthesis. The stiffness matrix of the ANCF
Kosuke KADOKURA, Nobuyuki KOBAYASHI
doaj   +1 more source

Online Adaptive Neurochaotic Fuzzy Controller Design to Reduce the Seismic Response of Buildings Equipped with Active Tuned Mass Damper System

International Journal of Intelligent Systems, Volume 2023, Issue 1, 2023., 2023
This paper presents a novel adaptive neurochaotic fuzzy control system based on type‐2 fuzzy systems to reduce seismic responses in multistory structures with active tuned mass dampers under near‐field and far‐field earthquakes. In this proposed control system, the whole parameters of the plant are assumed to be completely unknown, the structural model
Ommegolsoum Jafarzadeh, Seyyed Arash Mousavi Ghasemi, Seyed Mehdi Zahrai, Ardashir Mohammadzadeh, Ramin Vafaei Poursorkhabi, Surya Prakash   +5 more
wiley   +1 more source

Scalable Photovoltaic‐Electrochemical Cells for Hydrogen Production from Water ‐ Recent Advances

ChemElectroChem, Volume 9, Issue 24, December 27, 2022., 2022
Scalable photovoltaic electrochemical water splitting: Photovoltaic driven water splitting has been regarded as one of the promising ways to provide hydrogen environmental‐friendly. Research progress of photovoltaic driven water splitting at a large‐scale is intensively reviewed in this article.
Minoh Lee, Stefan Haas, Vladimir Smirnov, Tsvetelina Merdzhanova, Uwe Rau   +4 more
wiley   +1 more source

Dimension reduction method for controller design for flexible multibody systems derived by the use of ANCF model

Nihon Kikai Gakkai ronbunshu, 2015
Absolute Nodal Coordinate Formulation (ANCF) is a kind of finite element method for the flexible multibody system with large deformation and large rotation.
Yoshiki SUGAWARA, Koki TAKEDA, Nobuyuki KOBAYASHI   +2 more
doaj   +1 more source

Dimensionless approach for transient behaviour of flexible body with time-varying length

Nihon Kikai Gakkai ronbunshu, 2023
In this study, transient analysis of flexible body motion with time-varying length is conducted using dimensionless finite element model (FEM). First, the equation of motion for a flexible body with large deformation, displacement and time-varying length
Riko OGAWARA, Yoshiaki TERUMICHI
doaj   +1 more source

Nominal geometry and force measures for solids and fluids

International Journal of Mechanical System Dynamics, Volume 2, Issue 3, Page 249-252, September 2022., 2022
Abstract Understanding solid‐ and fluid‐inertia forces and their coupling with the gravity potential in complex motion scenarios is necessary for evaluating system stability and identifying root causes of system failure and accidents. Because solids and fluids have an infinite number of degrees of freedom and distributed inertia and elasticity, having ...
Ahmed A. Shabana
wiley   +1 more source

Detection of Communities within the Multibody System Dynamics Network and Analysis of Their Relations [PDF]

, 2019
Multibody system dynamics is already a well developed branch of theoretical, computational and applied mechanics. Thousands of documents can be found in any of the well-known scientific databases.
Alcayde García, Alfredo, García Vallejo, Daniel, Gil Montoya, Francisco, López Martínez, Javier   +3 more
core   +3 more sources