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Team 69

Team Members

Faculty Advisor

Veranika Hryn

Mihai Duduta

Sponsor

UConn College of Engineering

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ME 69: Soft Robotic DEA Manufacturing Optimization for Nuclear Reactor Inspection

This project evaluates the manufacturability and actuation performance of miniature Dielectric Elastomer Actuators (DEAs) intended for use in soft‑robotic inspection systems. The project focused on the investigation of whether DEAs at the millimeter scale can be reliably fabricated and how their performance depends on material selection and processing conditions. Two elastomers, Acrylic and NoSil, were examined for their potential to generate flexible, electrically driven motion in confined spaces. At this extremely small scale, fabrication proved highly challenging; minor variations in curing, thickness, or electrode placement frequently resulted in device failure. As a result, many experimental outcomes were inconclusive, underscoring the difficulty of producing consistent actuators at this size. To identify performance trends, the project varied polymer volume, curing duration, temperature exposure, and electrical connection methods. Actuation tests measured bending under applied voltage, and additional tests evaluated behavior at elevated temperatures. From the limited number of successful samples, general patterns emerged regarding which fabrication approaches produced more stable actuation. Overall, the project highlights the practical limitations of manufacturing ultra‑small DEAs and identifies the material and process factors most critical to achieving reliable performance. These findings provide a foundation for future work toward soft‑robotic inspection tools capable of operating in constrained or demanding environments.