Gianluca Rizzello
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View article: Current‐Limiting Control Strategies in Variable Capacitance Electrostatic Energy Harvesters
Current‐Limiting Control Strategies in Variable Capacitance Electrostatic Energy Harvesters Open
Electrostatic energy harvesters (EEHs), especially those employing electroactive polymers, show significant potential to be scaled up into real‐world technologies for ambient energy harvesting. Conventional EEH cycles involve rapidly charg…
View article: Cooperative Systems Based on Arrays of Dielectric Elastomer Actuators
Cooperative Systems Based on Arrays of Dielectric Elastomer Actuators Open
This work introduces two cooperative dielectric elastomer actuator (DEA) array designs, enabling comparison between a fully soft, wearable-oriented system and a rigid, high-performance platform. The soft silicone-based array achieves strok…
View article: Task Space Trajectory Planning for an Articulated Dielectric Elastomer Soft Robot with Input Saturation and Underactuation
Task Space Trajectory Planning for an Articulated Dielectric Elastomer Soft Robot with Input Saturation and Underactuation Open
In this paper we propose a new trajectory planning algorithm for an underactuated soft robot based on dielectric elastomer actuators. The planning of the dynamic trajectories is addressed by accounting for the constraints imposed by the un…
View article: Effects of Solvents on the Material Properties of Screen‐Printed Electrodes and a Polydimethylsiloxane Dielectric for Dielectric Elastomer Transducers
Effects of Solvents on the Material Properties of Screen‐Printed Electrodes and a Polydimethylsiloxane Dielectric for Dielectric Elastomer Transducers Open
Dielectric elastomer transducers (DETs), namely, highly stretchable dielectric membranes sandwiched between two compliant electrodes, allow to develop sensors, actuators, and generator systems. DET performance is strongly influenced by the…
View article: A tri-modal dielectric elastomer actuator integrating linear actuation, sound generation, and self-sensing capabilities
A tri-modal dielectric elastomer actuator integrating linear actuation, sound generation, and self-sensing capabilities Open
This paper presents a concept of multi-modal dielectric elastomer actuator (DEA) that leverages a single voltage input to concurrently work as linear actuator and loudspeaker, while also integrating self-sensing capabilities. Low-frequency…
View article: Sensorless Proprioception in Multi-DoF Dielectric Elastomer Soft Robots via System-Level Self-Sensing
Sensorless Proprioception in Multi-DoF Dielectric Elastomer Soft Robots via System-Level Self-Sensing Open
Proprioception in soft robots remains an ongoing challenge, owing to practical issues such as tight sensor integration while maintaining mechanical compliance. Soft robots based on dielectric elastomer (DE) technology could provide a compe…
View article: Energy-based modeling of rate-independent hysteresis and viscoelastic effects in dielectric elastomer actuators
Energy-based modeling of rate-independent hysteresis and viscoelastic effects in dielectric elastomer actuators Open
Dielectric elastomer (DE) transducers are known to exhibit a rate-dependent hysteresis in their force-displacement response, which is commonly attributed to the viscoelastic behavior of elastomer materials and compliant electrodes. In the …
View article: Physics-Based Modeling of Ferroelectric Hysteresis for Ceramic Capacitors in Inductively Coupled Microstimulators
Physics-Based Modeling of Ferroelectric Hysteresis for Ceramic Capacitors in Inductively Coupled Microstimulators Open
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View article: Systematic Methodology for an Optimized Design of Shape Memory Alloy‐Driven Continuum Robots
Systematic Methodology for an Optimized Design of Shape Memory Alloy‐Driven Continuum Robots Open
Continuum robots stand out due to their high dexterity, which allows them to effectively navigate in confined spaces and dynamic environments. At present, motor‐controlled tendons represent the most prominent actuation method used in conti…
View article: Smart Shape Memory Alloy Actuator Systems and Applications
Smart Shape Memory Alloy Actuator Systems and Applications Open
Shape memory alloys (SMAs) have been established in a wide range of applications. Lead by the medical sector, nickel-titanium-based alloys are used for the realization of stents, guide wires, and other medical or surgical equipment. Beside…
View article: Lightweight Human-Friendly Robotic Arm Based on Transparent Hydrostatic Transmissions
Lightweight Human-Friendly Robotic Arm Based on Transparent Hydrostatic Transmissions Open
International audience
View article: Optimal operation of dielectric elastomer wave energy converters under harmonic and stochastic excitation
Optimal operation of dielectric elastomer wave energy converters under harmonic and stochastic excitation Open
Dielectric elastomers are a promising technology for wave energy harvesting. An optimal system operation can allow maximizing the extracted energy and, simultaneously, reducing wear that would lead to a reduction in the wave harvester life…
View article: Dielectric Elastomer Cooperative Microactuator Systems—DECMAS
Dielectric Elastomer Cooperative Microactuator Systems—DECMAS Open
This paper presents results of the first phase of “Dielectric Elastomer Cooperative Microactuator Systems” (DECMAS), a project within the German Research Foundation Priority Program 2206, “Cooperative Multistable Multistage Microactuator S…
View article: A Physics-Based Hybrid Dynamical Model of Hysteresis in Polycrystalline Shape Memory Alloy Wire Transducers
A Physics-Based Hybrid Dynamical Model of Hysteresis in Polycrystalline Shape Memory Alloy Wire Transducers Open
Shape Memory Alloys (SMAs) are a class of smart materials that exhibit a macroscopic contraction of up to 5% when heated via an electric current. This effect can be exploited for the development of novel unconventional actuators. Despite h…
View article: Laser Structuring of Thin Metal Films of Compliant Electrodes on Dielectric Elastomers
Laser Structuring of Thin Metal Films of Compliant Electrodes on Dielectric Elastomers Open
Dielectric elastomer (DE) transducers are polymer‐based devices consisting of an insulating elastomeric membrane with compliant electrodes on both sides, forming a flexible capacitor that can work as an actuator or sensor. In this report, …
View article: An audio-tactile interface based on dielectric elastomer actuators
An audio-tactile interface based on dielectric elastomer actuators Open
This paper presents a concept of a dielectric elastomer actuator (DEA) user interface (smart button) that can sense a user’s touch and provide multi-sensory tactile and acoustic feedbacks through a single electrical input signal. The DEA r…
View article: A Review of Cooperative Actuator and Sensor Systems Based on Dielectric Elastomer Transducers
A Review of Cooperative Actuator and Sensor Systems Based on Dielectric Elastomer Transducers Open
This paper presents an overview of cooperative actuator and sensor systems based on dielectric elastomer (DE) transducers. A DE consists of a flexible capacitor made of a thin layer of soft dielectric material (e.g., acrylic, silicone) sur…
View article: Effects of Electrode Materials and Compositions on the Resistance Behavior of Dielectric Elastomer Transducers
Effects of Electrode Materials and Compositions on the Resistance Behavior of Dielectric Elastomer Transducers Open
Dielectric elastomer (DE) transducers possess various advantages in comparison to alternative actuator technologies, such as, e.g., electromagnetic drive systems. DE can achieve large deformations, high driving frequencies, and are energy …
View article: Hybrid Output Regulation of Hysteretic Actuators based on Single-Crystal Shape Memory Alloy Wires
Hybrid Output Regulation of Hysteretic Actuators based on Single-Crystal Shape Memory Alloy Wires Open
In this paper, we present a novel hybrid feedback controller for a hysteretic actuator based on smart materials. The system under investigation consists of a single-crystal Shape Memory Alloy wire coupled with a biasing mechanism. Starting…
View article: Energy based control of a bi-stable and underactuated soft robotic system based on dielectric elastomer actuators*
Energy based control of a bi-stable and underactuated soft robotic system based on dielectric elastomer actuators* Open
In this paper, we propose an energy based control approach for a class of underactuated soft robotic systems. The considered case study consists of an elastic structure driven by soft dielectric elastomer actuators, and is able to achieve …
View article: Gain-Scheduled Control of LPV Systems with Structural Constraints
Gain-Scheduled Control of LPV Systems with Structural Constraints Open
In large-scale dynamic systems, consisting of the interconnection of several subsystems, the control law must obey a certain distributed structure defined by the information exchange pattern on a communication network. In case the system e…
View article: Multi-Objective Model-Predictive Control for Dielectric Elastomer Wave Harvesters
Multi-Objective Model-Predictive Control for Dielectric Elastomer Wave Harvesters Open
This contribution deals with multi-objective model-predictive control (MPC) of a wave energy converter (WEC) device concept, which can harvest energy from sea waves using a dielectric elastomer generator (DEG) power take-off system. We aim…
View article: Datasets for the paper "Model-based parameter analysis of dielectric elastomer loudspeakers"
Datasets for the paper "Model-based parameter analysis of dielectric elastomer loudspeakers" Open
This upload contains the numerical datasets used for the numerical plots reported in the paper "Model-based parameter analysis of dielectric elastomer loudspeakers" by G. Moretti et al., In 2022 IEEE/ASME International Conference on Advanc…
View article: Datasets for the paper "Finite element modelling of the vibro-acoustic response in dielectric elastomer membranes"
Datasets for the paper "Finite element modelling of the vibro-acoustic response in dielectric elastomer membranes" Open
This upload contains the numerical datasets used for the numerical plots reported in the paper "Finite element modelling of the vibro-acoustic response in dielectric elastomer membranes" by G. Moretti et al., In Electroactive Polymer Actua…
View article: Datasets for the paper "A linear parameter-varying modelling approach for dielectric elastomer loudspeakers"
Datasets for the paper "A linear parameter-varying modelling approach for dielectric elastomer loudspeakers" Open
This upload contains the numerical datasets used for the numerical plots reported in the paper "A linear parameter-varying modelling approach for dielectric elastomer loudspeakers" by G. Moretti et al., In IFAC-PapersOnLine Volume 55, Issu…
View article: Datasets for the paper "Model-based parameter analysis of dielectric elastomer loudspeakers"
Datasets for the paper "Model-based parameter analysis of dielectric elastomer loudspeakers" Open
This upload contains the numerical datasets used for the numerical plots reported in the paper "Model-based parameter analysis of dielectric elastomer loudspeakers" by G. Moretti et al., In 2022 IEEE/ASME International Conference on Advanc…
View article: Datasets for the paper "A linear parameter-varying modelling approach for dielectric elastomer loudspeakers"
Datasets for the paper "A linear parameter-varying modelling approach for dielectric elastomer loudspeakers" Open
This upload contains the numerical datasets used for the numerical plots reported in the paper "A linear parameter-varying modelling approach for dielectric elastomer loudspeakers" by G. Moretti et al., In IFAC-PapersOnLine Volume 55, Issu…