Anti-Vibration Metamaterial Glove

A construction glove concept for protecting workers from harmful vibration.


Individual Project by Di Ba, 2020 | 5 min reading time

Overview


Construction contractors are often exposed to vibration when operating tools like pneumatic drills. Long-term exposure to such vibration may result in HAVS (Hand-Arm Vibration Syndrome) caused by local blood loss and irreversibly damaging fingers and wrists.

Therefore, this project proposed an anti-vibration glove concept. The design is expected to reduce vibrational force by approximately 40-50 per cent by adopting a novel mechanical metamaterial structure, according to the FEA simulation result. This advantage can allow better health rotection, potentially longer working time and increased revenue.

This is an individual project.

People who suffer from HAVS may experience pain, loss of motor skills, reduced strength and white fingers. The syndrome is preventable yet irreversable once the damage is done.

Frequent exposure to vibration through hands is a common cause of the syndrome.



Mechanical Metamaterial


There is limited space between a worker's hand and the device's handle. Material choice is crucial.

Metamaterial shows excellent potential in performance. Instead of solid material, mechanical metamaterial introduces engineered micro-structures with desirable mechanical properties. These micro-structures usually consist of multiple repetitive structural units.

I then proposed a specific metamaterial design using CAD tools such as Creo and Abaqus. According to simulation results, the proposal is expected to reduce 40-50 per cent of received ibration along the designed axis.

Metamaterials usually have engineered properties that improves desired performance. For mechanical metamaterials, the material structure is carefully designed to meet certain engineering requirements, such as shock absorbtion and controlled deformation.



Aesthetic Design


The glove should display appropriate aesthetic qualities as professional equipment: reliable, robust, comfortable and functional. Following this guideline, I made several iterations of the appearance design based on feedback from peers and the supervisor.




Forming a bigger system


Sensors inside the glove measure vibration and usage data. The data can provide information for research and development purposes and allow better business strategy for equipment suppliers and redistributors.




THE END