Double actuation architectures for rendering variable impedance in compliant robots: A review

NL Tagliamonte, F Sergi, D Accoto, G Carpino… - Mechatronics, 2012 - Elsevier
Novel compliant actuation systems have been developed in recent years for a variety of
possible advantages, such as establishing a safe human–robot interaction, increasing …

A robot joint with variable stiffness using leaf springs

J Choi, S Hong, W Lee, S Kang… - IEEE Transactions on …, 2011 - ieeexplore.ieee.org
Interaction with humans is inevitable for service robots, which results in safety being one of
the most important factors in designing the robots. Compliant component is an answer to the …

Compliance control and human–robot interaction: Part 1—Survey

SG Khan, G Herrmann, M Al Grafi, T Pipe… - International journal of …, 2014 - World Scientific
Compliance control is highly relevant to human safety in human–robot interaction (HRI). This
paper presents a review of various compliance control techniques. The paper is aimed to …

The variable stiffness actuator vsaUT-II: Mechanical design, modeling, and identification

SS Groothuis, G Rusticelli, A Zucchelli… - IEEE/ASME …, 2013 - ieeexplore.ieee.org
In this paper, the rotational variable stiffness actuator vsaUT-II is presented. This actuation
system is characterized by the property that the apparent stiffness at the actuator output can …

Hybrid dual actuator unit: A design of a variable stiffness actuator based on an adjustable moment arm mechanism

BS Kim, JB Song - 2010 IEEE International Conference on …, 2010 - ieeexplore.ieee.org
For tasks requiring robot-environment interaction, stiffness control is important to ensure
both stable contact motion and collision safety. The variable stiffness approach has been …

Variable Stiffness Link (VSL): Toward inherently safe robotic manipulators

A Stilli, L Grattarola, H Feldmann… - … on Robotics and …, 2017 - ieeexplore.ieee.org
Nowadays, the field of industrial robotics focuses particularly on collaborative robots that are
able to work closely together with a human worker in an inherently safe way. To detect and …

Design and modeling of a variable-stiffness spring mechanism for impedance modulation in physical human–robot interaction

R Chaichaowarat, S Nishimura… - 2021 IEEE international …, 2021 - ieeexplore.ieee.org
Our goal is to investigate different approaches to modulate stiffness and apply them to
human-robot interaction. Here we report on our effort employing the concept of adjustable …

High performance integrated electro-hydraulic actuator for robotics–Part I: Principle, prototype design and first experiments

S Alfayad, FB Ouezdou, F Namoun, G Gheng - Sensors and Actuators A …, 2011 - Elsevier
We design a new high performance integrated electro-hydraulic actuator (IEHA). We
propose a new solution to a still open question in robotics, to provide an efficient and …

Work in the time of Covid-19: actuators and sensors for rehabilitation robotics

R Chaichaowarat, S Nishimura, T Nozaki… - IEEJ Journal of Industry …, 2022 - jstage.jst.go.jp
This paper reports on our work conducted during 2020 in the development of actuation and
sensing techniques and devices. In gait rehabilitation, active body weight support systems …

[HTML][HTML] A variable stiffness actuator based on leaf springs: design, model and analysis

Y Lu, Y Yang, Y Xue, J Jiang, Q Zhang, H Yue - Actuators, 2022 - mdpi.com
In order to adapt to complex and changeable mechanical conditions and make the
deformable mechanisms perform well statically and dynamically, variable stiffness joints …