New Passive Device Offers Low-Cost Earthquake and Wind Damage Mitigation

A recently patented device promises to safeguard critical infrastructure from the destructive forces of earthquakes, high winds, and even man-made impacts. The U.S. Patent and Trademark Office approved the innovative system in December, which operates without external power, making it a robust solution for disaster-prone regions. Professor Moussa Leblouba, a civil engineering expert at the University of Sharjah, developed the device, which features a hollow cylinder filled with steel balls and internal rods designed to absorb and dissipate vibrational energy through friction.

Unlike conventional dampening technologies that are often expensive, prone to failure, or require power grids that typically collapse during disasters, this new system relies purely on physics. Its simple design incorporates inexpensive, common components like steel balls, rods, and a shaft, allowing for easy on-site assembly and maintenance. The device can also be retrofitted into existing structures and scaled to protect anything from entire buildings to sensitive scientific equipment, offering a versatile and cost-effective alternative to current solutions.

Professor Leblouba emphasizes the device's potential for deployment in developing countries with high seismic risk, where cost and maintenance are significant barriers to implementing protective measures. Initial laboratory tests have shown promising results, achieving an effective damping ratio of approximately 14% for a purely passive system. The research team now aims to advance to real-world trials, including shake table tests on small-scale models, and further optimize the device's configuration for diverse applications.