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Ruxu Du

7 accepted papers

2021

A Versatile Pneumatic Actuator Based on Scissor Mechanisms: Design, Modeling, and Experiments

RA-L 2021

A new versatile pneumatic actuator called a scissor-mechanism-based vacuum powered artificial muscle (SMVAM) is proposed in this letter. The actuator is composed of a soft airtight skin and a scissor structural skeleton, and based on the types of scissor units in the skeleton, the actuator can be de

Cited by 27SourceScholar
2020

A Novel Articulated Soft Robot Capable of Variable Stiffness through Bistable Structure

ICRA 2020poster

Soft robot has demonstrated promise in unstructured and dynamic environments due to unique advantages, such as safe interaction, adaptiveness, easy to actuate, and easy fabrication. However, the highly dissipative nature of elastic materials results in small stiffness of soft robot which limits cert…

Cited by 15SourceScholar
2020

An Experimental Study on the Fish Body Flapping Patterns by Using a Biomimetic Robot Fish

RA-L 2020

This letter presents an experimental study on how different body flapping patterns affect the performances of fish cruising. First, a biomimetic robot fish is designed and built as the experimental platform, which mimics the skeleton structure and the muscle arrangement of real fish. Moreover, an im

Cited by 49SourceScholar
2018

Toward a Transform Method From Lighthill Fish Swimming Model to Biomimetic Robot Fish

RA-L 2018

How to build a biomimetic robot fish has always been a divergent question. Most of the existing robot fishes suffer structural complexity and propulsive inefficiency. In this paper, we proposed a method that transfers the natural actuation properties of fish to the biomimetic robot counterpart. The

Cited by 38SourceScholar
2016

Design and Implementation of a Novel Robot Fish with Active and Compliant Propulsion Mechanism

RSS 2016poster

Although methods about building fish-like robots have attracted much research in recent years, new techniques are still required for developing superior robot fish. This paper presents a novel robot fish propelled by an active compliant propulsion mechanism. The key innovation is the combination of…

Cited by 26SourcePDFScholar
2016

Design and kinematic modeling of a concentric wire-driven mechanism targeted for minimally invasive surgery

IROS 2016poster

In this paper, a concentric wire-driven mechanism (CWM) is presented. The CWM comprises of two nested wire-driven mechanisms (WDM). Each WDM contains a flexible backbone and a set of wires. The backbone bending is controlled by pulling the wires. The stiffness of the outer WDM is controllable and do…

Cited by 22SourceScholar