A5057835206- Vibration Control and Rheological Fluids
- Dielectric materials and actuators
- Advanced Sensor and Energy Harvesting Materials
- Heat Transfer and Optimization
- Innovative Energy Harvesting Technologies
- Aeroelasticity and Vibration Control
- Adsorption and Cooling Systems
- Piezoelectric Actuators and Control
- Solar-Powered Water Purification Methods
Beihang University
2023
Shanghai Jiao Tong University
2018-2020
Beijing Solar Energy Research Institute
2018
This paper presents characterization and modeling for viscoelastic hysteresis exhibited by dielectric elastomer actuator (DEAs). Firstly, output–input characteristics in terms of hysteresis, asymmetry output nonlinearity are quantitatively described proposed indicators. Their variations with the excitation frequency investigated, revealing significant asymmetric property strong frequency-dependence. Next, Hammerstein model a cascaded structure is description. A modified Prandtl–Ishlinskii...
In this paper, a novel planar dielectric elastomer actuator (DEA) with magnetic modulating mechanism is proposed. This design can provide the availability of wider actuation range and larger output force, which are significant indicators to evaluate performance DEAs. The DEA tends be compact simple design, an analytical model developed characterize mechanical behavior. result shows that force induced by improved 76.90% under certain applied voltage initial magnet distance. Moreover,...
Abstract This paper proposes a dynamic electromechanical model for dielectric elastomer actuators (DEAs) with dissipative processes. Dielectric loss of elastomers, resistance electrodes, actuator geometry, viscoelasticity and nonlinear coupling are considered, new visco-hyperelastic constitutive frequency-dependent parameters is developed large-strain elastomers. The responses DEAs at different driving frequencies experimentally measured comprehensively compared those predicted results....
The emerging field of soft robots offers the prospective applying actuators as artificial muscles, replacing traditional based on hard materials. Dielectric elastomers (DE), one class electro-active polymers, represents an attractive technology for realization mechatronic actuators, due to their light weight, high energy efficiency and scalability. This work aims at investigating characterizing a novel design membrane DE in-plane actuator by magnetic mechanism. A nonlinear dynamic model...
This paper proposes a new adaptive control method with viscoelastic hysteresis compensation for high-precision tracking of dielectric elastomer actuators (DEAs).A direct inverse feedforward compensator is constructed by using modified Prandtl-Ishlinskii model compensating nonlinearities.The dynamics effects DEAs and disturbances are coped the controller filtered-x normalized least mean square algorithm.A series real-time experiments carried out on DEA made commercial acrylic elastomers.The...