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Ali Shiva

6 accepted papers

2021

Screw theory-based stiffness analysis for a fluidic-driven soft robotic manipulator

ICRA 2021poster

Soft robotic manipulators have been created and investigated for a number of applications due to their advantages over rigid robots. In minimally invasive surgery, for instance, soft robots have successfully demonstrated a number of benefits due to the compliant and flexible nature of the material t…

Cited by 13SourceScholar
2020

Stiffness Imaging With a Continuum Appendage: Real-Time Shape and Tip Force Estimation From Base Load Readings

RA-L 2020

In this letter, we propose benefiting from load readings at the base of a continuum appendage for real-time forward integration of Cosserat rod model with application in configuration and tip load estimation. The application of this method is successfully tested for stiffness imaging of a soft tissu

Cited by 31SourceScholar
2019

Reduced Order vs. Discretized Lumped System Models with Absolute and Relative States for Continuum Manipulators

RSS 2019poster

A reliable, accurate, and yet simple dynamic model is important to analyze, design and control continuum manipulators. Such models should be fast, as simple as possible and user-friendly to be widely accepted by the ever-growing robotics research community. In this study, we introduce two new modeli…

Cited by 22SourcePDFScholar
2016

A geometry deformation model for compound continuum manipulators with external loading

ICRA 2016

The complexity of soft continuum manipulators with hybrid and tuneable structures poses a challenging task to achieve an inverse kinematics model which is both precise and computationally efficient for control and optimization purposes. In this paper, a new method based on the principle of virtual w

Cited by 25SourceScholar
2016

Real-time pose estimation and obstacle avoidance for multi-segment continuum manipulator in dynamic environments

IROS 2016poster

In this paper, we present a novel pose estimation and obstacle avoidance approach for tendon-driven multi-segment continuum manipulators moving in dynamic environments. A novel multi-stage implementation of an Extended Kalman Filter is used to estimate the pose of every point along the manipulator's…

Cited by 40SourceScholar
2016

Tendon-Based Stiffening for a Pneumatically Actuated Soft Manipulator

RA-L 2016

There is an emerging trend toward soft robotics due to its extended manipulation capabilities compared to traditionally rigid robot links, showing promise for an extended applicability to new areas. However, as a result of the inherent property of soft robotics being less rigid, the ability to contr

Cited by 186SourceScholar