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Siavash Rezazadeh

4 accepted papers

2021

A Unified Optimization Framework and New Set of Performance Metrics for Robot Leg Design

ICRA 2021poster

This work presents a framework for the simultaneous optimization of motors, transmissions, and mechanisms of different joints of robotic legs with the goal of achieving an energy efficient, precisely controllable and stable locomotion in dynamic environments. This unified framework allowed us to int…

Cited by 7SourceScholar
2018

A Phase Variable Approach to Volitional Control of Powered Knee-Ankle Prostheses

IROS 2018poster

Although there has been recent progress in control of multi-joint prosthetic legs for periodic tasks such as walking, volitional control of these systems for non-periodic maneuvers is still an open problem. In this paper, we develop a new controller that is capable of both periodic walking and commo…

Cited by 28SourceScholar
2018

Design and Benchtop Validation of a Powered Knee-Ankle Prosthesis with High-Torque, Low-Impedance Actuators

ICRA 2018poster

This paper describes the design of a powered knee-and-ankle transfemoral prosthetic leg, which implements high torque density actuators with low-reduction transmissions. The low reduction of the transmission coupled with a high-torque and low-speed motor creates an actuator with low mechanical imped…

Cited by 71SourceScholar
2015

Toward step-by-step synthesis of stable gaits for underactuated compliant legged robots

ICRA 2015poster

Many control policies developed for legged robots are based on control of an underlying, simplified version of the dynamics of the robot. A good example is the Linear Inverted Pendulum Model (LIPM) which has become the standard control template for ZMP-based rigid robots. For compliant robots, this…

Cited by 32SourceScholar