Automatic control of oscillatory penetration apparatus
Abstract
A system and method for controlling an oscillatory penetration apparatus. An embodiment is a system and method for controlling a sonic drill having a displacement and an operating range and operating at a phase difference, said sonic drill comprising a push-pull piston and eccentrics, said method comprising: operating the push-pull piston at an initial push-pull force while the eccentrics are operated at a plurality of different operating frequencies within the operating range of the sonic drill and measuring the displacement at each operating frequency; determining an efficient operating frequency for the material being drilled and operating the eccentrics at said efficient operating frequency; determining the phase difference at which the sonic drill is operating; and if the phase difference is not substantially equal to minus ninety degrees, operating the push-pull piston at another push-pull force.
- Inventors:
- Issue Date:
- Research Org.:
- U.S. Department of Energy, Washington, D.C. (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1167031
- Patent Number(s):
- 8925648
- Application Number:
- 12/736,742
- Assignee:
- Lucon, Peter A.
- Patent Classifications (CPCs):
-
E - FIXED CONSTRUCTIONS E21 - EARTH DRILLING E21B - EARTH DRILLING, e.g. DEEP DRILLING
- DOE Contract Number:
- FG02-06ER84618
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 2009 May 26
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 42 ENGINEERING
Citation Formats
Lucon, Peter A. Automatic control of oscillatory penetration apparatus. United States: N. p., 2015.
Web.
Lucon, Peter A. Automatic control of oscillatory penetration apparatus. United States.
Lucon, Peter A. Tue .
"Automatic control of oscillatory penetration apparatus". United States. https://www.osti.gov/servlets/purl/1167031.
@article{osti_1167031,
title = {Automatic control of oscillatory penetration apparatus},
author = {Lucon, Peter A},
abstractNote = {A system and method for controlling an oscillatory penetration apparatus. An embodiment is a system and method for controlling a sonic drill having a displacement and an operating range and operating at a phase difference, said sonic drill comprising a push-pull piston and eccentrics, said method comprising: operating the push-pull piston at an initial push-pull force while the eccentrics are operated at a plurality of different operating frequencies within the operating range of the sonic drill and measuring the displacement at each operating frequency; determining an efficient operating frequency for the material being drilled and operating the eccentrics at said efficient operating frequency; determining the phase difference at which the sonic drill is operating; and if the phase difference is not substantially equal to minus ninety degrees, operating the push-pull piston at another push-pull force.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2015},
month = {1}
}