Results 81 to 90 of about 12,984 (228)

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

Ecosystem‐Centered Robot Design: Toward Ecoresorbable Sustainability Robots (ESRs)

open access: yesAdvanced Science, Volume 13, Issue 15, 13 March 2026.
Robots exploring natural ecosystems can support monitoring and conservation, but must adopt ecosystem‐centered design to avoid pollution, waste, and damage. This review proposes guidelines for co‐designing ecoresorbable sustainability robots (ESRs), uniting materials, robotics, and ecological contexts in a single framework.
Tülin Yılmaz Nayır   +4 more
wiley   +1 more source

Steady-State Fault Propagation Characteristics and Fault Isolation in Cascade Electro-Hydraulic Control System

open access: yesMachines
Model-based fault diagnosis serves as a powerful technique for addressing fault detection and isolation issues in control systems. However, diagnosing faults in closed-loop control systems is more challenging due to their inherent robustness.
Yang Zhang   +4 more
doaj   +1 more source

Independent Orbiter Assessment (IOA): Analysis of the rudder/speed brake subsystem [PDF]

open access: yes
The results of the Independent Orbiter Assessment (IOA) of the Failure Modes and Effects Analysis (FMEA) and Critical Items List (CIL) are presented. The IOA approach features a top-down analysis of the hardware to determine failure modes, criticality ...
Riccio, J. R., Wilson, R. E.
core   +1 more source

A path following algorithm for mobile robots [PDF]

open access: yes
This paper considers path following control for a robotic platform. The vehicle used for the experiments is a specially designed robotic platform for performing autonomous weed control. The platform is four-wheel steered and four-wheel driven.
Asselt, C.J., van   +4 more
core   +2 more sources

Redundant actuator development program [PDF]

open access: yes
Two concepts of redundant secondary actuator mechanization, applicable to future advanced flight control systems, were studied to quantitatively assess their design applicability to an AST.
Chenoweth, C. C.   +2 more
core   +1 more source

Temperature sensitive controller performance of MR dampers [PDF]

open access: yes, 2009
Magnetorheological (MR) dampers can experience large temperature changes as a result of heating caused by energy dissipation, but control systems are often designed without consideration of this fact.
Batterbee, D., Sims, N.D.
core   +1 more source

Parallel Velocity Control of an Electro-Hydraulic Actuator With Dual Disturbance Observers

open access: yesIEEE Access, 2019
In this paper, a nonlinear parallel control algorithm is developed for an electro-hydraulic actuator to achieve high velocity tracking performance and reduce energy consumption.
Mingjie Li   +5 more
doaj   +1 more source

Development and Wind Tunnel Evaluation of a SMA Based Trim Tab Actuator for a Civil Aircraft [PDF]

open access: yes, 2011
This paper presents about the development and wind tunnel evaluation of an SMA based smart trim tab for a typical 2 seater civil aircraft. SMA actuator was housed in the port side of the elevator for actuating the trim tab.
Dayananda, GN   +5 more
core  

Transport coefficients for electrolytes in arbitrarily shaped nano and micro-fluidic channels

open access: yes, 2005
We consider laminar flow of incompressible electrolytes in long, straight channels driven by pressure and electro-osmosis. We use a Hilbert space eigenfunction expansion to address the general problem of an arbitrary cross section and obtain general ...
  +14 more
core   +1 more source

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