An open-loop control scheme to increase the speed and reduce the viscoelastic drift of dielectric elastomer actuators

2019 ◽  
Vol 27 ◽  
pp. 20-26 ◽  
Author(s):  
Alexandre Poulin ◽  
Samuel Rosset
Keyword(s):  
Dielectric Elastomer ◽  
Open Loop ◽  
Open Loop Control ◽  
Loop Control ◽  
Dielectric Elastomer Actuators ◽  
Control Scheme

An open-loop control scheme for minimization of residual vibrations of a flexible robot

2003 ◽  
Vol 43 (4) ◽  
pp. 387-395 ◽  
Author(s):  
W. S. Jang ◽  
K. S. Kim ◽  
S. K. Lee
Keyword(s):  
Open Loop ◽  
Open Loop Control ◽  
Flexible Robot ◽  
Loop Control ◽  
Control Scheme

Minimum-Time Eigenaxis Rotation Maneuvers for a Spacecraft With Three Axis Reaction Wheels

2015 ◽  
Vol 137 (11) ◽  
Author(s):  
Haoyu Wang ◽  
Guowei Zhao ◽  
Hai Huang
Keyword(s):  
Numerical Simulation ◽  
Momentum Conservation ◽  
Open Loop ◽  
Minimum Time ◽  
Control Law ◽  
Open Loop Control ◽  
Model Uncertainties ◽  
Loop Control ◽  
Control Scheme ◽  
And Control

This paper proposes a planning method of the theoretically fastest slew path, and correspondingly, an analytical open-loop control law for the minimum-time eigenaxis rotation of spacecraft with three reaction wheels. The path planning and the control law are based on the angular momentum conservation of the spacecraft system. Then, a control scheme is also proposed to correct the maneuver error caused by model uncertainties. The control law and control scheme are verified in numerical simulation cases. The results show that the control law would realize the fastest slew path for an eigenaxis rotation, and the control scheme is feasible in shortening the slew time.

scholarly journals Open-loop quantum control as a resource for secure communications

2016 ◽  
Vol 14 (02) ◽  
pp. 1650010
Author(s):  
Davide Pastorello
Keyword(s):  
Time Evolution ◽  
Quantum Control ◽  
Data Encryption ◽  
Quantum Systems ◽  
Open Loop ◽  
Secure Communications ◽  
Open Loop Control ◽  
Loop Control ◽  
Control Scheme ◽  
Encryption Decryption

Properties of unitary time evolution of quantum systems can be applied to define quantum cryptographic protocols. Dynamics of a qubit can be exploited as a data encryption/decryption procedure by means of timed measurements, implementation of an open-loop control scheme over a qubit increases robustness of a protocol employing this principle.

Open-loop control of compensation for optical propagation through a turbulent shear flow

1998 ◽  
Author(s):  
C. Truman ◽  
Lenore McMackin ◽  
Robert Pierson ◽  
Kenneth Bishop ◽  
Ellen Chen
Keyword(s):  
Shear Flow ◽  
Open Loop ◽  
Turbulent Shear ◽  
Turbulent Shear Flow ◽  
Open Loop Control ◽  
Loop Control ◽  
Optical Propagation

Precise open-loop control of MEMS deformable mirror shape

2008 ◽  
Author(s):  
Thomas Bifano ◽  
Jason Stewart ◽  
Alioune Diouf
Keyword(s):  
Open Loop ◽  
Deformable Mirror ◽  
Open Loop Control ◽  
Loop Control
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