scholarly journals Preparation and performance analysis of Pt-IPMC for driving bionic tulip

2021 ◽  
pp. 2150017
Author(s):  
Aifen Tian ◽  
Xixi Wang ◽  
Yue Sun ◽  
Xinrong Zhang ◽  
Hongyan Wang ◽  
...  
Keyword(s):  
Fast Response ◽  
Driving Voltage ◽  
Metal Composite ◽  
Force Output ◽  
Ionic Polymer ◽  
Output Displacement ◽  
Current Voltage ◽  
Polymer Metal ◽  
And Performance ◽  
The Right

Based on the biological characteristics of tulip, the low driving voltage and fast response of ionic polymer metal composite (IPMC), we analyzed the fabrication, morphology and performance of the platinum IPMC (Pt-IPMC) and selected the right IPMC for driving bionic tulip. The preparation and performance of IPMC was analyzed first in this paper such as blocking force, output displacement and bending angle of IPMC under the different directed current voltage (DC). The optimal IPMC sample size and driving voltage were selected based on tulip blooming angles and the strain energy density of IPMC, which completed the blooming process of bionic tulip. The feasibility of IPMC used in driving bionic field was fully proved in this paper, which laid a foundation for the application of IPMC in driving biomimetic biological robots.

Investigation on a Linear Actuator Using an Ionic Polymer-Metal Composite

2013 ◽  
Vol 461 ◽  
pp. 358-363 ◽  
Author(s):  
Bao Lei Wang ◽  
Min Yu ◽  
Qing Song He ◽  
Jie Ru ◽  
Zhen Dong Dai
Keyword(s):  
Linear Actuator ◽  
Driving Voltage ◽  
Metal Composite ◽  
Ionic Polymer Metal Composite ◽  
Test Apparatus ◽  
Ionic Polymer ◽  
Output Displacement ◽  
Practical Applications ◽  
Straight Line ◽  
Polymer Metal

Ionic polymer-metal composite (IPMC) is a new kind of electroactive polymer with the advantages of low driving voltage and large bend, which has shown great potential for practical applications. In this paper, IPMC was fabricated by casting and electroless plating. Using the as-fabricated IPMC, a linear actuator was designed to transform bending motion of a cantilever IPMC into straight line motion. The linear actuator's output displacement and blocking force were investigated on a test apparatus. The results showed that the mechanism design for the linear actuator was feasible.

Fabrication and Thermo-Mechanical Analysis of Pure Silver-Electrode Ionic Polymer-Metal Composite (IPMC) Actuator

2011 ◽  
Vol 110-116 ◽  
pp. 1199-1206 ◽  
Author(s):  
Dillip Kumar Biswal ◽  
Dibakar Bandopadhya ◽  
Santosha Kumar Dwivedy
Keyword(s):  
Artificial Muscle ◽  
Cost Effective ◽  
Metal Electrode ◽  
Mechanical Analysis ◽  
Metal Composite ◽  
Ionic Polymer Metal Composites ◽  
Ionic Polymer ◽  
Polymer Metal ◽  
And Performance ◽  
Exchange Membrane

Till to date, fabrication of Ionic Polymer-Metal Composites (IPMC) are carried out successfully using noble metal such as platinum/gold as the surface electrode. In this work we have proposed cost effective fabrication method for IPMC actuator using non-precious metal electrode of silver (Ag). Chemical decomposition method is followed using Nafion as the ion exchange membrane to fabricate pure Ag-electrode IPMC. Microscopic and morphological analyses reveal that, silver particles penetrate well through the surface of Nafion membrane. The bending deformation measurement and analysis of the thermo-mechanical properties of the fabricated IPMC is carried out. The experiment results and performance of the IPMC actuator confirm that the fabrication of pure Ag-IPMC is feasible and can be used as artificial muscle material.

Hammerstein modeling and hybrid control of force and position for a novel integration of actuating and sensing ionic polymer metal composite gripper

2020 ◽  
pp. 095440622096112
Author(s):  
Hao Wang ◽  
Jinhai Gao ◽  
Yang Chen ◽  
Lina Hao
Keyword(s):  
Hybrid Control ◽  
Critical Factor ◽  
Force Sensor ◽  
Hammerstein Model ◽  
Metal Composite ◽  
Ionic Polymer Metal Composite ◽  
Linear Portion ◽  
Ionic Polymer ◽  
Output Displacement ◽  
Polymer Metal

An innovative integration of actuating and sensing ionic polymer metal composite (IPMC) gripper is proposed and fabricated in this paper. The IPMC gripper is composed of a stationary copper finger and an IPMC finger attached to a force sensor. In order to make IPMC gripper useful in bio-manipulation application, control strategy is a critical factor to resist nonlinear characteristic of IPMC. Hammerstein model of IPMC output displacement is constructed with static nonlinear portion and dynamic linear portion. We utilize creep operator superposition and auto-regression (ARX) models to represent static nonlinear and dynamic linear portions respectively by modeling methods based on data. Then a novel control scheme is proposed and designed using inverse creep compensator for static nonlinear portion and uncertainty state feedback robust control based on state observer for dynamic linear portion. When IPMC reaches a constant displacement to grasp a miniature object, the grasping force may not be provided enough to complete grasping task. Finally, hybrid control of force and position strategy for IPMC gripper is conducted and realized on physical experimental platform. The experimental results demonstrate the effectiveness of control system to guarantee stable manipulation.

A Twistable Ionic Polymer-Metal Composite Artificial Muscle for Marine Applications

2011 ◽  
Vol 45 (4) ◽  
pp. 83-98 ◽  
Author(s):  
Kwang J. Kim ◽  
David Pugal ◽  
Kam K. Leang
Keyword(s):  
Degrees Of Freedom ◽  
Large Strain ◽  
Aqueous Environment ◽  
Driving Voltage ◽  
Metal Composite ◽  
Ionic Polymer Metal Composite ◽  
External Stimulation ◽  
Ionic Polymer ◽  
Electromechanical Transduction ◽  
Polymer Metal

AbstractIonic polymer-metal composite (IPMC) artificial muscles (AMs), due to their low driving voltage (<5 V), large strain, soft and flexible structure, and ability to operate in an aqueous environment, are suited for creating artificial fish-like propulsors that can mimic the undulatory, flapping, and complex motions of fish fins. Herein, a newly developed IPMC AM fin with patterned electrodes is introduced for realizing multiple degrees-of-freedom motion, such as bending and twisting. Also, by carefully creating isolated patterns of electrodes on the surface of the polymer-metal composite, sections of the composite can function as an actuator, while other areas can be used for sensing fin deformation and responses to external stimulation. The manufacturing, modeling, and characterization of a twistable AM fin are discussed. The sectored electrode pattern on the AM fin is created using two techniques: masking and surface machining. Using first principles, detailed models are developed to describe the electromechanical transduction for the IPMC AM fin. These models can be used to guide the development of more complex AM fin geometries and electrode patterns. The bending and twisting performance of a prototype twistable AM fin is evaluated and compared to the models. Experimental results demonstrate good twisting response for a prototype fin. Technical design challenges and performance limitations are also discussed.

Development of the Bending Actuator with Nafion-Pt IPMC Tube

2015 ◽  
Vol 1119 ◽  
pp. 251-257 ◽  
Author(s):  
Nguyen Le Quang Nhat ◽  
Nguyen Truong Thinh
Keyword(s):  
Experimental Data ◽  
Driving Voltage ◽  
Metal Composite ◽  
Ionic Polymer Metal Composite ◽  
Tube Surface ◽  
Promising Candidate ◽  
Ionic Polymer ◽  
Bending Actuator ◽  
Wet Condition ◽  
Polymer Metal

IPMC (Ionic Polymer Metal Composite) is promising candidate actuator for bio-related applications mainly due to its biocompatibility, soft properties and operation in wet condition. In this paper, a new actuator will be presented. The tubular actuator, based on the concept of tip-displacement of IPMC actuator and capable of generating bending of tube with surface outside electrodes, was proposed and studied experimentally. The actuator is a Nafion tube consisting of an even number of Pt segments along the length, which are plated outside of tube surface, and the Pt segments act as electrodes to apply the driving voltage. The experimental data measured on prototype actuators prove the proposed concept of bending depend on the shape of Nafion. Show that the actuator functions well both displacement and force.

scholarly journals Fabrication and Actuation of Cu-Ionic Polymer Metal Composite

Polymers ◽  
2020 ◽  
Vol 12 (2) ◽  
pp. 460 ◽  
Author(s):  
Liang Yang ◽  
Dongsheng Zhang ◽  
Xining Zhang ◽  
Aifen Tian
Keyword(s):  
Analysis Data ◽  
Adhesive Force ◽  
Metal Composite ◽  
Force Output ◽  
Maximum Displacement ◽  
Ionic Polymer ◽  
Plating Method ◽  
Polymer Metal ◽  
Speed Up ◽  
Direct Current Voltage

In this study, Cu-Ionic polymer metal composites (Cu-IPMC) were fabricated using the electroless plating method. The properties of Cu-IPMC in terms of morphology, water loss rate, adhesive force, surface resistance, displacements, and tip forces were evaluated under direct current voltage. In order to understand the relationship between lengths and actuation properties, we developed two static models of displacements and tip forces. The deposited Cu layer is uniform and smooth and contains about 90% by weight of copper, according to the energy-dispersive X-ray spectroscopy (EDS) analysis data obtained. The electrodes adhere well (level of 5B) on the membrane, to ensure a better conductivity and improve the actuation performance. The penetration depth of needle-like electrodes can reach up to around 70 μm, and the structure shows concise without complex branches, to speed up the actuation. Overall the maximum displacement increased as the voltage increased. The applied voltage for the maximum force output is 8–9 V. The root mean square error (RMSE) and determination coefficient (DC) of the displacement and force models are 1.66 and 1.23, 0.96 and 0.86, respectively.

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