Results 31 to 40 of about 20,095 (267)

Resonance Suppression Method Based on Virtual Filter for Grid-Following and Grid-Forming Converter Interconnected Systems

Applied Sciences
With the advancement of power electronics technology, converters achieve compactness and high power density by increasing switching frequency and reducing passive components.
Lei Zhang, Guoju Zhang, Xu Liu, Peng Yang, Wei Pei   +4 more
doaj   +1 more source

Adaptable Tile‐Based Pneumatic Origami through Structurally Coupled Localized Actuation

Advanced Engineering Materials, EarlyView.
This article presents tile‐based pneumatic origami structures with rigid tiles and flexible fabric creases, achieving adaptable properties including morphing shape, selective multistability, and tunable stiffness. Independently pressurized folding bladders at each crease enable structurally coupled localized actuation of origami structures.
Tiantian Li, Jonathan Luntz, Diann Brei
wiley   +1 more source

Truly optimal semi-active damping to control free vibration of a single degree of freedom system

Theoretical and Applied Mechanics Letters
This paper studies a single degree of freedom system under free vibration and controlled by a general semi-active damping. A general integral of squared error is considered as the performance index. A one-time switching damping controller is proposed and
Viet Duc La, Ngoc Tuan Nguyen
doaj   +1 more source

On the Role of Nonsynchronous Rotating Damping in Rotordynamics

International Journal of Rotating Machinery, 2000
Nonsynchronous rotating damping, i.e. energy dissipations occurring in elements rotating at a speed different from the spin speed of a rotor, can have substantial effects on the dynamic behaviour and above all on the stability of rotating systems.
Giancarlo Genta, Eugenio Brusa
doaj   +1 more source

Enabling Digital Continuity in Virtual Manufacturing for Eco‐Efficiency Assessment of Lightweight Structures by Means of a Domain‐Specific Structural Mechanics Language: Requirements, Idea and Proof of Concept

Advanced Engineering Materials, EarlyView.
This article presents a solver‐agnostic domain‐specific language (DSL) for computational structural mechanics that strengthens interoperability in virtual product development. Using a hierarchical data model, the DSL enables seamless exchange between diverse simulation tools and numerical methods.
Martin Rädel, Andreas Schuster, Felix Schoenitz, Jean Lefèvre   +3 more
wiley   +1 more source

Active damping of multidimensional mechanic systems

MATEC Web of Conferences, 2017
At many motion control tasks, the problem of oscillations existence in multidimensional system with limited motion control and imperfect or complicated state quantities measurement possibility exists.
Úředníček Zdeněk, Maloch Jaroslav
doaj   +1 more source

Performance comparison of passive series R and shunt R-C damped LCL filter for grid-connected inverters

The Journal of Engineering, 2019
LCL filters are widely used in distributed power-generation systems to attenuate high-frequency harmonics caused by pulse-width modulation switching of grid-connected inverters. A resonance occurs due to the series-connected reactive components. In order
Hakan Temiz, Erhan Demirok, Ozan Keysan, Ali Türkay, Burak Çetinkaya   +4 more
doaj   +1 more source

Can Ti‐Based MXenes Serve as Solid Lubricants for Brake Applications? A Tribological Study

Advanced Engineering Materials, EarlyView.
This study explores the first implementation of Ti‐based MXenes materials in brake pad friction composite material. The resulting composite material exhibits a 48% reduction in the wear rate; alongside significant improvements are observed for thermal and mechanical properties.
Eslam Mahmoud, Jakob Gruber, Hakan Göçerler, Pierluigi Bilotto, Christian Gierl‐Mayer, Elham Loni, Michael Naguib, Carsten Gachot   +7 more
wiley   +1 more source

Design and Prototyping of Topology‐Optimized, Additively Manufactured Lightweight Components for Space Robotic Systems: A Case Study

Advanced Engineering Materials, EarlyView.
The results demonstrate a simulation‐driven workflow that applies LSB topology optimization with additive manufacturing constraints to mission‐specific load cases, integrating European Cooperation for Space Standardization compliant verification and manufacturability to develop structurally efficient rover suspension components.
Stelios K. Georgantzinos, Grigorios Kostopoulos, Eleni Papadopoulou, Stefanos Voulgaris, Alexandra Tseni, Panteleimon Bakalis, Maria N. Gkara, Chara Ch. Mitropoulou, Georgios Kazakis, Alin Munteanu, Jeremi Gancet, Nikos D. Lagaros   +11 more
wiley   +1 more source

Multi-SIN-Based Real-Time Impedance Estimation for Self-Commissioning Controller and Active Damping in an LCL-Grid-Tied VSI

IEEE Open Journal of Industry Applications
This article introduces a novel method for self-commissioning controllers and active damping in LCL grid-tied three-phase voltage source inverters. The proposed impedance estimation method is designed with the goal of minimizing invasiveness on the grid ...
Giovanni Marini, Nicolas Baschera, Alessandro Lidozzi, Marco di Benedetto, Luca Solero   +4 more
doaj   +1 more source