Ultrasonic Drill Tool (05-07)
The Ultrasonic Drill Tool (UDT) had to develop a device for ultrasonically-assisted drilling and sampling of planetary rocks and regolith.
The tool transforms low displacement, high frequency oscillations in a transducer into higher displacement vibration at the tip, which effectively cuts into material.
Benefits of the UDT compared to conventional rock percussion drills:
As well as creating the tuned mechanical design, the project team has developed a novel ‘auto resonant’ control system, which keeps the resonance of the UDT in tune and working at optimum efficiency, independent of the loading conditions.
The tool was tested in a variety of materials, and the results of these tests are being used to make improvements to the design. Typical UDT performances in a relatively hard material such as granite are:
Last update: 2 February 2011