Results 51 to 60 of about 10,283 (224)

Flow-Bounded Velocity Controller for Hydraulic Bulldozers

Energies, 2022
The bulldozer is a mobile earthmoving machine with a differentially steered mobile base and an onboard manipulator used for soil cutting and transportation.
Teemu Mononen, Jouni Mattila
doaj   +1 more source

A Review on Sensor Technologies, Control Approaches, and Emerging Challenges in Soft Robotics

Advanced Robotics Research, EarlyView.
This review provides an introspective of sensors and controllers in soft robotics. Initially describing the current sensing methods, then moving on to the control methods utilized, and finally ending with challenges and future directions in soft robotics focusing on the material innovations, sensor fusion, and embedded intelligence for sensors and ...
Ean Lovett, Maxwell Hammond, Niloufar Seyfi, Amirreza Fahim Golestaneh, Venanzio Cichella, Caterina Lamuta   +5 more
wiley   +1 more source

A Systematic Literature Review on PHM Strategies for (Hydraulic) Primary Flight Control Actuation Systems

Actuators
Prognostic and Health Management (PHM) strategies are gaining increasingly more traction in almost every field of engineering, offering stakeholders advanced capabilities in system monitoring, anomaly detection, and predictive maintenance. Primary flight
Leonardo Baldo, Andrea De Martin, Giovanni Jacazio, Massimo Sorli   +3 more
doaj   +1 more source

Intelligent Health Assessment of Aviation Bearing Based on Deep Transfer Graph Convolutional Networks under Large Speed Fluctuations

Sensors, 2023
As a critical support and fixed component of aero engines, electro-hydrostatic actuators, and other equipment, the operation of aviation bearings is often subject to high speed, high-temperature rise, large load, and other continuous complex fluctuation ...
Xiaoli Zhao, Xingjun Zhu, Jianyong Yao, Wenxiang Deng, Yudong Cao, Peng Ding, Minping Jia, Haidong Shao   +7 more
doaj   +1 more source

Durability of Soft Pneumatic Actuators: A Review and Benchmarking Protocol

Advanced Robotics Research, EarlyView.
Lack of durability is a key challenge hindering the broad scale adoption of soft pneumatic actuators (SPAs) in automation industries. This review provides a comprehensive overview of existing research on SPA durability, introduces a standardized durability benchmarking protocol to consolidate the testing of SPAs, and outlines promising directions for ...
Dickson Chiu Yu Wong, Yucheng Luo, Rob Bernardus Nicolaas Scharff   +2 more
wiley   +1 more source

A method to detect internal leakage of hydraulic cylinder by combining data augmentation and multiscale residual CNN

The Journal of Engineering, 2023
Developing a method to detect internal leakage in hydraulic cylinder, which is used for Electro‐Hydrostatic Actuators (EHA), is important to prevent serious malfunctions for aircrafts.
Qingchuan He, Huiqi Ruan, Jun Pan, Xiaotian Lyu   +3 more
doaj   +1 more source

Design and Experiments of Electro-Hydrostatic Actuator for Wheel-Legged Robot with Fast Force Control Response

Machines, 2023
The wheel-legged robot combines the functions of wheeled vehicles and legged robots: high speed and high passability. However, the limited performance of existing joint actuators has always been the bottleneck in the actual applications of large wheel ...
Huipeng Zhao, Junjie Zhou, Sanxi Ma, Shanxiao Du, Hui Liu, Lijin Han   +5 more
doaj   +1 more source

Variable displacement electro-hydrostatic actuator [PDF]

Proceedings of the IEEE 1991 National Aerospace and Electronics Conference NAECON 1991, 2002
The author discusses the effects of pump displacement on electro-hydrostatic actuator (EHA) performance characteristics and the possible advantages of using a variable displacement pump in an EHA. Issues discussed are heating, size, and stiffness.
openaire   +1 more source

Core-tube morphology of multiwall carbon nanotubes

, 2009
The present paper investigates the cross-sectional morphology of Multiwalled Carbon Nanotubes (MWNTs) restrained radially and circumferentially by an infinite surrounding elastic medium, subjected to uniform external hydrostatic pressure.
HIROYUKI SHIMA, KOHTAROH IIBOSHI, MOTOHIRO SATO, Ono S., Shima H., Sinha N.   +5 more
core   +1 more source

Scaling properties of a low-actuation pressure microfluidic valve [PDF]

, 2004
Using basic physical arguments, we present a design and method for the fabrication of microfluidic valves using multilayer soft lithography. These on-off valves have extremely low actuation pressures and can be used to fabricate active functions, such as
Anna Pandolfi, Giao Hang, Groisman A., Grover W. H., Hansen C. L., Kane C., Michael Ortiz, Pandolfi A., Stephen R. Quake, Vincent Studer, W. French Anderson   +10 more
core   +1 more source