Results 21 to 30 of about 2,870 (194)

A NUMERICAL AND EXPERIMENTAL ANALYSIS OF THE DYNAMIC STABILITY OF HYDRAULIC EXCAVATORS

Facta Universitatis. Series: Mechanical Engineering, 2018
The paper presents the results of a numerical and experimental analysis of the dynamic stability of hydraulic excavators. The analysis has employed the software developed on the basis of a defined general dynamic mathematical model of an excavator ...
Dragoslav Janošević, Jovan Pavlović, Vesna Jovanović, Goran Petrović   +3 more
doaj   +1 more source

Development of Composite Hydraulic Actuators: A Review

Actuators, 2022
With the development of engineering materials, as well as the growing requirements for weight reduction and the reduction of energy consumption by mechanical systems, attempts have been made to utilize composite materials in the design of hydraulic ...
Marek Lubecki, Michał Stosiak, Paulius Skačkauskas, Mykola Karpenko, Adam Deptuła, Kamil Urbanowicz   +5 more
doaj   +1 more source

Results of a Feasibility Study of a Prognostic System for Electro-Hydraulic Flight Control Actuators

International Journal of Prognostics and Health Management, 2021
Electro-Hydraulic Servo-Actuators (EHSA) are currently the most used actuation technology for primary flight control systems of civil and military aircrafts. Although some alternatives have emerged in the last decade, such as electromechanical or electro-
Sylvain Autin, Andrea De Martin Giovanni Jacazio, Jérôme Socheleau, George Vachtsevanos   +3 more
doaj   +1 more source

Research on hydraulic actuators that utilize the compressibility of air bubbles in hydraulic fluid as a shock absorbing effect

Nihon Kikai Gakkai ronbunshu, 2023
In recent years, there has been active development of robots that play a role in people's lives. These robots require actuators that have high responsiveness and high output force in addition to being small.
Yuki KITAZAWA, Sayako SAKAMA, Yoshiki SUGAWARA   +2 more
doaj   +1 more source

Transfer Printing and Reconfiguration of Soft Electronics Using Digital Microfluidics and Laser Machining

Advanced Functional Materials, EarlyView.
This paper presents a digital microfluidics‐based technique for transferring and reconfiguring soft nanomembranes. Laser‐machined nanothin membranes are picked up, transported, and aligned via tailored surface tension and the actuation of water droplets, enabling the development of flexible electronics, the integration of functional materials on 3D ...
Quang Anh Nguyen, Chi Cong Nguyen, Tran Bach Dang, Phuoc Thien Phan, Jordan Thorpe, Michael Listyawan, Nhat Minh Doan, Sinuo Zhao, Hongru Chen, Trung Thien Hoang, Mingsheng Xu, Jisheng Han, Thanh Nho Do, Adam Hill, Timothée Mouterde, Hoang‐Phuong Phan   +15 more
wiley   +1 more source

Bionic driving method of multi-actuator hydraulic synchronization system based on wild goose cluster flight principle

Advances in Mechanical Engineering
Heavy equipment is often driven synchronously by multi-actuator hydraulic system. However, when the load deviation of the actuators is large, such systems exhibit serious energy loss and inferior synchronization performance.
Wang Weiping, Zhou Xinyi, Lu Shun
doaj   +1 more source

Adaptive Concrete Beams Equipped With Integrated Fluidic Actuators

Frontiers in Built Environment, 2020
The rapidly growing world population is a great challenge for the building industry. Due to the impending scarcity of resources, it is not possible to provide the growing mankind with sufficient living and work places and infrastructure with current ...
Christian Kelleter, Timon Burghardt, Hansgeorg Binz, Lucio Blandini, Werner Sobek   +4 more
doaj   +1 more source

3D Printing Innovations in Polymeric Porous and Patterned Architecture

Advanced Functional Materials, EarlyView.
Polymeric foams occupy a unique structural space between dense solids and open networks, where engineered void fraction governs mechanical compliance, thermal resistance, and mass transport. Additive manufacturing now enables precise spatial control over cellular architecture, unlocking designer foam structures across applications spanning crash ...
Dhanush Patil, Sri Vaishnavi Thummalapalli, Clarissa Westover, Arunachalam Ramanathan, M. Taylor Sobzcak, Roumika Patil, Qixuan Xiang, Tiantian Li, Sui Yang, Timothy E. Long, Hongyue Sun, Xianqiao Wang, Yang Liu, Kenan Song   +13 more
wiley   +1 more source

Rapid Fabrication of Self‐Propelled and Steerable Magnetic Microcatheters for Precision Medicine

Advanced Materials, EarlyView.
A rapid Joule heating fabrication method for the production of self‐propelling, adaptive microcatheters, with tunable stiffness and integrated microfluidic channels is presented. Demonstrated through three microrobotic designs, including a steerable guiding catheter, an untethered wave‐crawling TubeBot, and a distal‐end propelled microcatheter, it was ...
Zhi Chen, Boris Rivkin, David Castellanos‐Robles, Ivan Soldatov, Lukas Beyer, Mariana Medina‐Sánchez   +5 more
wiley   +1 more source

Energy management in pump-controlled actuators

Frontiers in Mechanical Engineering
Pump-controlled actuators, or more generically, hydrostatic actuators, have the significant advantage of not relying on valves to control the cylinders. This results in much better energy usage compared to traditional valve-controlled systems.
Gustavo Koury Costa, Nariman Sepehri
doaj   +1 more source