Results 51 to 60 of about 42,845 (360)

A Sleeve Alters the Pressure‐Stretch Curve of a Hyperelastic Balloon to Enable Pre‐Programmed Sequencing

open access: yesAdvanced Materials Technologies, Volume 10, Issue 6, March 18, 2025.
This article demonstrates that encasing a hyperelastic balloon in an inextensible sleeve greatly increases its burst pressure. This simple mechanical behavior can be used to produce an asymmetric inflation‐deflation sequence for coupled balloons with different thicknesses so they could serve as a soft robot's rear and front anchors when driven from a ...
Ifat Gertler, Katherine J. Kuchenbecker
wiley   +1 more source

Design and development of the quad redundant servoactuator for the space shuttle solid rocket booster thrust vector control [PDF]

open access: yes, 1980
The design and theory of operation of the servoactuator used for thrust vector control of the space shuttle solid rocket booster is described accompanied by highlights from the development and qualification test programs.
Lominick, J. M.
core   +1 more source

H ∞ and μ-synthesis Design of Quarter Car Active Suspension System [PDF]

open access: yes, 2020
To improve the street managing and passenger comfort of a vehicle, a suspension system is furnished. An active suspension device is considered to be better than the passive suspension device.
Jibril, Mustefa
core   +1 more source

Model based control strategies for a class of nonlinear mechanical sub-systems [PDF]

open access: yes, 2016
This paper presents a comparison between various control strategies for a class of mechanical actuators common in heavy-duty industry. Typical actuator components are hydraulic or pneumatic elements with static non-linearities, which are commonly ...
De Keyser, Robain   +1 more
core   +2 more sources

Multiobjective Codesign Optimization of a Planar Pneumatic Artificial Muscle‐Based Snake‐Like Robot for Enhanced Agility and Energy Efficiency

open access: yesAdvanced Robotics Research, EarlyView.
A codesign multiobjective optimization framework was developed to enhance the morphology and controller of a snake‐like robot driven by artificial muscles. It improved planar locomotion, agility, and power efficiency. The approach optimized link geometry and controller gains, revealing that shorter muscles near joints and longer linkages maximize ...
Ayla Valles, Mahdi Haghshenas‐Jaryani
wiley   +1 more source

Comparative efficiency testing of a composite hydraulic cylinder

open access: yesAviation
The paper points to the increasing use of composite materials in hydraulic components. This entails many benefits, such as weight reduction which is particularly important in aviation. However, new problems arise with the use of new materials.
Michał Stosiak   +2 more
doaj   +1 more source

Energy and Operation Characteristics of Electric Excavator With Innovative Hydraulic-Electric Dual Power Drive Boom System

open access: yesIEEE Access, 2023
In the existing electric excavators, the energy efficiency of the hydraulic system is less than 30% due to a large amount of throttling loss and waste of potential energy.
Yunxiao Hao   +5 more
doaj   +1 more source

Force Control of Hydraulic Actuators using Additional Hydraulic Compliance

open access: yesStrojniški vestnik - Journal of Mechanical Engineering, 2018
This paper presents an approach for improving the performance of hydraulic force control systems by adding hydraulic compliance. Typically, force control systems require a flexible coupling system, such as a spring between the actuator and the load, to achieve a non-oscillatory response.
De Negri, Victor Juliano   +2 more
openaire   +2 more sources

Control Surface Actuator [PDF]

open access: yes, 1988
A device which actuates aircraft control surfaces is disclosed. The actuator is disposed entirely within the control surface structure. This allows the gap between the wing structural box and the control surface to be reduced.
Seidel, Gerhard E.
core   +1 more source

Circle grid fractal plate as a turbulent generator for premixed flame: an overview [PDF]

open access: yes, 2013
This review paper focuses to ascertain a new approach in turbulence generation on the structure of premixed flames and external combustion using a fractal grid pattern.
A Khalid   +17 more
core   +1 more source

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