- About
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The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
provided by the
Networked Digital Library of Theses and Dissertations.
Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
Search results
Showing 21 to 30 of 37 (0.034 seconds)Spelling suggestions: "subject:"rockdrills."" "subject:"rockdrill.""
| 21 |
A study on vibration in rock drills during drilling.Ablak, Hayri January 1969 (has links)
No description available.
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| 22 |
Abatement of drill dust by the application of foams and froths.Park, Choon Keun. January 1971 (has links)
No description available.
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| 23 |
Fundamental studies in the use of sonic power for rock cutting.Lo, Ting-yu January 1972 (has links)
No description available.
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| 24 |
Numerical model of a rock bit bearing sealXiong, Shunhe 05 1900 (has links)
No description available.
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| 25 |
Production, characteristics and abatement of noise from pneumatic machines.Savich, M. (Miron) January 1972 (has links)
No description available.
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| 26 |
Production, characteristics and abatement of noise from pneumatic machines.Savich, M. (Miron) January 1972 (has links)
No description available.
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| 27 |
Drill dust and noise abatement using foamsLewis, Gordon Vernon January 1974 (has links)
No description available.
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| 28 |
A report on drill steel wear at Isle Royal [sic] Mine, Houghton, MichiganDowd, James Joseph. January 1921 (has links) (PDF)
Thesis (Professional Degree)--University of Missouri, School of Mines and Metallurgy, 1921. / The entire thesis text is included in file. Typescript. Illustrated by author. Title from title screen of thesis/dissertation PDF file (viewed May 13, 2009)
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| 29 |
Drill dust and noise abatement using foamsLewis, Gordon Vernon January 1974 (has links)
No description available.
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| 30 |
Numerical modeling of tool-rock interaction in laminated formationsOuyang, Hsien-Ju 12 March 2009 (has links)
Based on a review of the literature, a numerical model of the chip formation process in laminated rock formations has been developed. The model uses a finite element approach to simulate the anisotropic behavior of laminated rock formations.
The finite element program has been developed with the assumption of two-dimensional plane strain. Anisotropic elements and dynamic loading are used to represent the actual penetration process of a bit tooth. An iteration method, using an incremental approach, has been applied for the continuous tooth penetration process. Displacements and axial loads have been modified after each iteration.
The program provides quantitative information on stresses and displacements during the penetration process. Furthermore, bit deviations in laminated formations can be inferred.. Different rock strength characteristics have been employed on each side of the bit Bit tooth-rock interaction for various formation dips (from ()O to 9(0) of the Berea sandstone have been simulated and compared with experimental results. / Master of Science
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