Mold-Free Robotic Roller Hemming System

The high requirement of small volumes with large-variety, especially in the automotive aftermarket, enforce manufacturers to develop strategy for avoiding using molds now. Hemming is a key process to combine two car sheets together, but molds are required in traditional methods. This system aim to help such manufacturers to hem various kinds of sheets without molds. Besides, we also develop the software for optimized trajectory planning to avoid poses of singularity, joint limit, collision and low-stiffness.

Large-Area Multi-Touch Electrotactile Device

A new type of a large-area multi-touch tactile device operated by electrotactile stimulation was proposed. To get closer to the possibility of integrating multi-touch tactile devices operated by electrotactile stimulation into flat panel displays, this research focused on developing a large-area tactile device driven by electrotactile stimulation that can fully cover them. The anodes took responsibility for delivering signals and cathodes which surrounded anodes played the role of switches to divide signals.

Composite Pressure Sensor

This conductive-elastic pressure sensor, which could detect foot pressure, was fabricated by mixing two materials, carbon-black and PDMS. Carbon-black was a kind of conductive powder, and PDMS was a kind of flexible substance. When pressure was applying, the space between particles would change and thus the conductivity of the sensor would be different. I used this poverty to design a foot pressure sensor, which had enough strength to bear human weight, as well as enough flexibility for comfort for foot.