Research on self-sensing actuators for vibration control of flexible deployable structures
Year: 2025
Type: conference-paper
Abstract: Flexible deployable structures are increasingly used in large-scale space systems, driving demand for efficient vibration suppression strategies. This study presents an active vibration control method using a Self-Sensing Giant Magnetostrictive Actuator (SSGMA), which integrates actuation and sensing into a single device to achieve colocated control. A dynamic model of a large deployable antenna is constructed by extracting mass, damping, and stiffness matrices from ANSYS, followed by model order reduction via high-frequency modal truncation. The SSGMA structure is designed to detect both static and dynamic output forces by sensing stiffness variations of the Terfenol-D core. An active control algorithm based on the Filtered-x Least Mean Square (FxLMS) method is developed and applied. Simulation results verify the effectiveness of the proposed approach in significantly reducing vibration amplitudes, demonstrating its potential for spaceborne flexible structures.
Institution: Shanghai Jiao Tong University
Language: English
Subfield: Aerospace Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W4416320970