Simulation, Fabrication, and Control of Biomimetic Actuator Arrays

Simulation, Fabrication, and Control of Biomimetic Actuator Arrays
Author: Benjamin Marc O'Brien
Publisher:
Total Pages: 169
Release: 2010
Genre: Actuators
ISBN:

Ctenophores are small sea creatures that achieve propulsion using thousands of locally controlled ciliated paddles. The human heart is a flexible network of actuators coordinated with electro-chemo-mechanical waves of contraction. Stomata are self-controlling variable apertures that work together to solve the gas exchange problem for plants. It can be seen that flexible networks of actuators coordinated using distributed intelligence and sensing provide robust and adaptable performance in the face of complex and varied challenges. This thesis aims to create networks of flexible actuators with distributed sensitivity and intelligence that realise the robust and adaptable performance seen in nature. Dielectric Elastomer Actuator(s) (DEA) were identified as ideal for achieving this goal, however, their implementation into biomimetic arrays was limited by a lack of modelling tools for engineering design; the fact that DEA self-sensing has never been used to underpin a control strategy; and rigid and bulky sensor, logic, and driver circuitry. The objectives of this thesis were to overcome these three problems: Firstly, a novel low degrees-of-freedom modelling approach was developed and experimentally validated using dielectric elastomer minimum energy structures. The approach was rapid and robust and applied as a virtual experimentation tool where it reduced prototype development times by an order of magnitude. Secondly, biomimetic distributed control using capacitive self-sensing was explored and applied to a variety of DEA arrays including a ctenophore inspired mechano-sensitive artificial cilia array. Actuator coupling, multilevel control, travelling waves of actuation, and performance under partial failure were explored. Finally, Dielectric Elastomer Switch(es) (DES) were invented. DES enable distributed sensor, driver, and logic circuitry to be integrated directly into a biomimetic array and substantially reduce the need for rigid, heavy, and expensive external circuitry. DES were used to create NAND gates, smart oscillator circuits, and memory elements. These contributions have led to two journal articles, three conference papers, two provisional patent applications, and should substantially accelerate progress towards the development and control of large scale biomimetic actuator arrays. Future work involves applying modelling and control techniques to micro-scale systems and developing DES applications, materials, and fabrication techniques further.

Ocean Innovation

Ocean Innovation
Author: Iain A. Anderson
Publisher: CRC Press
Total Pages: 194
Release: 2016-03-30
Genre: Medical
ISBN: 1482297752

Biomimetics is the idea of creating new technologies abstracted from what we find in biology. Ocean Innovation: Biomimetics Beneath the Waves seeks that technological inspiration from the rich biodiversity of marine organisms. Bringing both a biological and engineering perspective to the biomimetic potential of oceanic organisms, this richly illust

Biomimetic Robotic Artificial Muscles

Biomimetic Robotic Artificial Muscles
Author: Kwang Jin Kim
Publisher: World Scientific
Total Pages: 300
Release: 2013
Genre: Science
ISBN: 9814390364

Biomimetic Robotic Artificial Muscles presents a comprehensive up-to-date overview of several types of electroactive materials with a view of using them as biomimetic artificial muscles. The purpose of the book is to provide a focused, in-depth, yet self-contained treatment of recent advances made in several promising EAP materials. In particular, ionic polymer-metal composites, conjugated polymers, and dielectric elastomers are considered. Manufacturing, physical characterization, modeling, and control of the materials are presented. Namely, the book adopts a systems perspective to integrate recent developments in material processing, actuator design, control-oriented modeling, and device and robotic applications. While the main focus is on the new developments in these subjects, an effort has been made throughout the book to provide the reader with general, basic information about the materials before going into more advanced topics. As a result, the book is very much self-contained and expected to be accessible for a reader who does not have background in EAPs.Based on the good fundamental knowledge and the versatility of the materials, several promising biomimetic and robotic applications such robotic fish propelled by an IPMC tail, an IPMC energy harvester, an IPMC-based valveless pump, a conjugated polymer petal-driven micropump, and a synthetic elastomer actuator-enabled robotic finger are demonstrated.

Smart Actuation and Sensing Systems

Smart Actuation and Sensing Systems
Author: Giovanni Berselli
Publisher: BoD – Books on Demand
Total Pages: 732
Release: 2012-10-17
Genre: Technology & Engineering
ISBN: 9535107984

The objective of the present book, which tries to summarize in an edited format and in a fairly comprehensive manner, many of the recent technical research accomplishments in the area of Smart Actuators and Smart Sensors, is to combine researchers and scientists from different fields into a single virtual room. The book hence reflects the multicultural nature of the field and will allow the reader to taste and appreciate different points of view, different engineering methods and different tools that must be jointly considered when designing and realizing smart actuation and sensing systems.

Modeling Cellular Actuator Arrays

Modeling Cellular Actuator Arrays
Author: David Luke MacNair
Publisher:
Total Pages:
Release: 2013
Genre: Actuators
ISBN:

This work explores the representations and mathematical modeling of biologically-inspired robotic muscles called Cellular Actuator Arrays. These actuator arrays are made of many small interconnected actuation units which work together to provide force, displacement, robustness and other properties beyond the original actuator's capability. The arrays can also exhibit properties generally associated with biological muscle and can thus provide test bed for research into the interrelated nature of the nervous system and muscles, kinematics/dynamics experiments to understand balance and synergies, and building full-strength, safe muscles for prosthesis, rehabilitation, human force amplification, and humanoid robotics. This thesis focuses on the mathematical tools needed bridge the gap between the conceptual idea of the cellular actuator array and the engineering design processes needed to build physical robotic muscles. The work explores the representation and notation needed to express complex actuator array typologies, the mathematical modeling needed to represent the complex dynamics of the arrays, and properties to guide the selection of arrays for engineering purposes. The approach is designed to aid automation and simulation of actuator arrays and provide an intuitive base for future controls and physiology work. The work is validated through numerical results using MatLab's SimMechanics dynamic modeling system and with three physical actuator arrays built using solenoids and shape memory alloy actuators.

Cellular Actuators

Cellular Actuators
Author: Jun Ueda
Publisher: Butterworth-Heinemann
Total Pages: 384
Release: 2017-01-24
Genre: Computers
ISBN: 0128037067

Cellular Actuators: Modularity and Variability in Muscle-Inspired Actuation describes the roles actuators play in robotics and their insufficiency in emerging new robotic applications, such as wearable devices and human co-working robots where compactness and compliance are important. Piezoelectric actuators, the topic of this book, provide advantages like displacement scale, force, reliability, and compactness, and rely on material properties to provide displacement and force as reactions to electric stimulation. The authors, renowned researchers in the area, present the fundamentals of muscle-like movement and a system-wide study that includes the design, analysis, and control of biologically inspired actuators. This book is the perfect guide for researchers and practitioners who would like to deploy this technology into their research and products. Introduces Piezoelectric Actuators concepts in a system wide integrated approach Acts as a single source for the design, analysis, and control of actuator arrays Presents applications to illustrate concepts and the potential of the technology Details the physical assembly possibilities of Piezo actuators Presents fundamentals of bio inspired actuation Introduces the concept of cellular actuators

Shape Memory Alloy Actuators

Shape Memory Alloy Actuators
Author: Mohammad H. Elahinia
Publisher: John Wiley & Sons
Total Pages: 297
Release: 2015-11-25
Genre: Technology & Engineering
ISBN: 1118426940

This book provides a systematic approach to realizing NiTi shape memory alloy actuation, and is aimed at science and engineering students who would like to develop a better understanding of the behaviors of SMAs, and learn to design, simulate, control, and fabricate these actuators in a systematic approach. Several innovative biomedical applications of SMAs are discussed. These include orthopedic, rehabilitation, assistive, cardiovascular, and surgery devices and tools. To this end unique actuation mechanisms are discussed. These include antagonistic bi-stable shape memory-superelastic actuation, shape memory spring actuation, and multi axial tension-torsion actuation. These actuation mechanisms open new possibilities for creating adaptive structures and biomedical devices by using SMAs.

Smart Actuator and Sensor Technologies

Smart Actuator and Sensor Technologies
Author: Kam K Leang
Publisher: Butterworth-Heinemann
Total Pages: 0
Release: 2029-11-15
Genre: Technology & Engineering
ISBN: 9780128094556

Smart Actuator and Sensor Technologies: Design, Modeling, Fabrication, and Control for Mechatronic Systems focuses on design, modeling, fabrication, and control of smart actuator technologies, such as piezoelectric actuators, electroactive polymer actuators, and a host of other "smart” material based actuators, including shape memory alloys, magnetostrictive materials and others. This book covers important technical aspects so that engineers, scientists, and designers can utilize the information in their work. As emerging mechatronic systems, such as precision positioning system, soft robots, biomedical devices and aerospace system are exploring the use of smart actuators, this book provides complete coverage of the popular technologies. Covers the important technical aspects of design, modeling, fabrication and control of smart actuator technologies Written by two experts in the field of smart actuators, each contributing their expert knowledge“/li> Presents a reference text where readers can enhance their understanding through further reading of listed, credible publications

Biomimetic Technologies

Biomimetic Technologies
Author: Trung Dung Ngo
Publisher: Woodhead Publishing
Total Pages: 394
Release: 2015-07-24
Genre: Computers
ISBN: 0081002602

Biomimetic engineering takes the principles of biological organisms and copies, mimics or adapts these in the design and development of new materials and technologies. Biomimetic Technologies reviews the key materials and processes involved in this groundbreaking field, supporting theoretical background by outlining a range of applications. Beginning with an overview of the key principles and materials associated with biomimetic technologies in Part One, the book goes on to explore biomimetic sensors in more detail in Part Two, with bio-inspired tactile, hair-based, gas-sensing and sonar systems all reviewed. Biomimetic actuators are then the focus of Part Three, with vision systems, tissue growth and muscles all discussed. Finally, a wide range of applications are investigated in Part Four, where biomimetic technology and artificial intelligence are reviewed for such uses as bio-inspired climbing robots and multi-robot systems, microrobots with CMOS IC neural networks locomotion control, central pattern generators (CPG’s) and biologically inspired antenna arrays. Includes a solid overview of modern artificial intelligence as background to the principles of biomimetic engineering Reviews a selection of key bio-inspired materials and sensors, highlighting their current strengths and future potential Features cutting-edge examples of biomimetic technologies employed for a broad range of applications