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Single piezo-actuator rotary-hammering (sparh) drill
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Copyright Year | 2014 |
| Description | A Single Piezo-Actuator Rotary-Hammering (SPaRH) Drill includes a horn actuator having high power piezoelectric materials and a flexure pre-stress to increase the actuators effectiveness. The drill is a low mass, low power, compact coring drill measuring 20-cm high by 7-cm diameter and having a total weight of 2 kg including drive electronics. Using an average power of 50-Watts, the drill basalt is expected to cut basalt at a rate of 0.2 cm/min down to depth of 10-cm and create cuttings and an intact core. The drill is expected to operate under different environments including Martian ambient (6 Torr and down to -50 degree C), and liquid nitrogen temperatures (77 K) and low pressure (<<1 Torr) to simulate lunar polar and Europa conditions. Materials expected to be sampled include Kaolinite, Saddleback Basalt, Limestone, Volcanic Breccia, Siltstone, ice, permafrost and layered rocks with different hardness. |
| File Size | 1741206 |
| Page Count | 14 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20150003208 |
| Archival Resource Key | ark:/13960/t7dr7vf1b |
| Language | English |
| Publisher Date | 2014-02-25 |
| Access Restriction | Open |
| Subject Keyword | Drilling Patents Actuators Liquid Nitrogen Mars Planet Piezoelectricity Basalt Europa Rotation Mechanical Drives Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Patent |
