On Nonlinear Dynamics Of A Nonideal Magnetic System With Shape Memory Alloy To Energy Harvesting Using Uncertainty Exponent And Entropy Of Basin Of Attractions Approaches
A Ribeiro, J M Balthazar, A M Tusset, J J Lima, J L P Felix, v Piccirillo · arXiv · 2025
A nonlinear, non-ideal magnetic energy-harvesting model incorporating a shape memory spring is analyzed via basin-of-attraction fractality and uncertainty/entropy measures to map chaotic/periodic regimes and power-output extremes.
Plain English summary
Why this matters
Key findings
- Nonlinear dynamics analysis of a dimensionless mathematical model for a magnetic energy-harvesting system with a shape memory spring and non-ideal motor excitation.
- Fractal behavior of basins of attraction for parameter sets relevant to energy harvesting.
- Mapping of chaotic and periodic regions based on initial conditions and model parameters.
- Identification of regions corresponding to maximum and minimum average power output generated by vibration.
Limitations
The abstract does not specify experimental validation, device fabrication, material characterization, or quantitative performance metrics beyond identifying power-output regions. It also does not clarify how the model parameters relate to real hardware.
Publication
- Publisher
- arXiv
- Publication date
- July 10, 2025
- Research type
- Preprint
- arXiv
- 2507.07740
- Access
- open
Tags
More on Shape-Memory Alloys
See all →Functional Shape Recovery Response of Heat-Treated NiTiCu SHAPE Memory Alloy Wire
Heat treatment of NiTiCu shape memory alloy wires enhances their shape recovery response, achieving a high recovery ratio.
A Deformable Robot Based on Shape Memory Alloy and Phase Change Metal
This research presents a novel deformable robot that integrates Shape Memory Alloys and phase change metals for enhanced adaptability and locomotion.
Development of a Directional Vibrator Using Shape-Memory Alloy Wires
This paper proposes a compact directional vibrator using Shape-Memory Alloy wires for enhanced haptic feedback in virtual and augmented reality applications.
Martensitic Transformation in Crystal-Amorphous Superlattices of NiTi Shape Memory Alloy
Crystal-amorphous superlattices in NiTi are simulated to shift martensitic transformation behavior, boosting reversibility and stiffness while raising transformation critical stress.
HVAF Spraying of NiTi Coatings: Microstructure, Phase Transformation and Shape Memory Behavior
HVAF spraying enables thick (100–300 µm) NiTi shape-memory alloy coatings on mild steel that can undergo martensitic transformation and exhibit thermal actuation and shape memory effects after annealing.
Omnidirectional Shape Proprioception for Untethered Shape Memory Alloy‐Driven Soft Robotic Arms
This research presents a modular soft robotic arm using shape memory alloys for improved proprioception and adaptability in unstructured environments.
Recently published
Latest research →Bio-inspired re-entrant honeycomb metamaterial with programmable dual-plateau mechanical response
A bio-inspired re-entrant honeycomb mechanical metamaterial is described as having a programmable dual-plateau mechanical response.
Modelling the thermo-mechanical responses and shape recovery performance of particle-reinforced shape memory polymer composites in cold and hot programming
A study focused on modeling thermo-mechanical behavior and shape recovery of particle-reinforced shape-memory polymer composites when programmed in cold versus hot conditions.
Dorsiventrally Bicolored Leaf‐Inspired Metamaterial Absorbers for Tailorable Electromagnetic Absorption
This research proposes a bioinspired metamaterial that achieves high-performance, tailorable electromagnetic absorption across a broad frequency range.