Zobrazeno 1 - 10
of 88
pro vyhledávání: '"D. Gee-Clough"'
Publikováno v:
Journal of Terramechanics. 34:235-250
Study was conducted in a laboratory glass-sided soil bin with dry compact loam soil with 5.2% (d.b.) moisture content. The specific objective of this study was to determine the effects of flat rigid tine rake angle (forward angle between tine face an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d4c601c32ec7212add2ae7a1e56b8d46
https://doi.org/10.1016/s0022-4898(98)00003-2
https://doi.org/10.1016/s0022-4898(98)00003-2
Publikováno v:
Journal of Terramechanics. 33:233-252
Studies were conducted in a laboratory glass-sided soil bin with dry compact loam soil (c = 0.02 kPa, Φ = 20° and cone index 210 kPa) with the specific objective of observing the effect of flat tine rake angle and aspect ratio on soil failure patte
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fa1d2dae1f8e4de214a6e90bc4fb18fd
https://doi.org/10.1016/s0022-4898(97)00007-4
https://doi.org/10.1016/s0022-4898(97)00007-4
Publikováno v:
Journal of Terramechanics. 31:385-394
The effects of low-to-medium slip, lug spacing and moisture content on lug forces in clay soil were investigated in a laboratory soil bin with the help of two model lugs. Perpendicular and radial soil reactions on the lug were measured and they were
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1189152da006ca01d66fd233fc1aeeff
https://doi.org/10.1016/0022-4898(94)90024-8
https://doi.org/10.1016/0022-4898(94)90024-8
Publikováno v:
Journal of Agricultural Engineering Research. 58:121-131
The finite element method (FEM) was used to model cutting of wet clay by a wide tine using measured soil stress-strain characteristics as input data. The incremental method was used to deal with this geometrically nonlinear problem and correspondingl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f13fa0b8ae5bbee0a42fe3cefcef3255
https://doi.org/10.1006/jaer.1994.1042
https://doi.org/10.1006/jaer.1994.1042
Publikováno v:
Journal of Agricultural Engineering Research. 57:191-197
Studies conducted in a laboratory soil bin filled with dry sand indicated that the nature of soil reactions on tines of 90° rake angle were cyclic for tine aspect ratios (width/depth) of 0·6 and greater. For tine aspect ratio of four, soil reaction
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6d484208f389fb4edd8b1d2f091ee70c
https://doi.org/10.1006/jaer.1994.1018
https://doi.org/10.1006/jaer.1994.1018
Autor:
D. Gee-Clough, J. Wang
Publikováno v:
Journal of Agricultural Engineering Research. 54:57-66
Tests of soil cutting by wide tines were conducted in wet clay soil. Force-displacement curves were obtained and the soil deformation patterns were observed and analysed with the help of a painted grid. The tine experiment showed that the soil deform
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f4fbe7d403aafee0cfaf4a31154b0bc0
https://doi.org/10.1006/jaer.1993.1004
https://doi.org/10.1006/jaer.1993.1004
Autor:
D. Gee-Clough, J. Wang
Publikováno v:
Journal of Agricultural Engineering Research. 54:37-55
Uniaxial and triaxial compression tests, unconfined tension tests and direct shear tests were undertaken to investigate the behaviour of wet clay soil under quasi-static conditions. In addition to measurement of force-displacement relations, the soil
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a5cb6b23ed53dd955a42673a702b52dd
https://doi.org/10.1006/jaer.1993.1003
https://doi.org/10.1006/jaer.1993.1003
Publikováno v:
Soil and Tillage Research. 24:285-297
Experiments were conducted in a stubbled paddy field with clay soil to determine the effect of enamel coating on the draft of a mouldboard plough. An enamel-coated plate of mouldboard shape was fabricated, and the performance of a mouldboard plough w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4299b85b3a7a3622529b574fce912178
https://doi.org/10.1016/0167-1987(92)90093-q
https://doi.org/10.1016/0167-1987(92)90093-q
Publikováno v:
Journal of Terramechanics. 29:363-371
The effect of enamel coating on boat hull drag was studied by using simple boat models of different shapes. The performance of enamel-coated boats was compared with the uncoated boats of the same shape. The effect of speed and normal load on enamel-c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::324cd2390e468a5bdd527ca6c34c03b5
https://doi.org/10.1016/0022-4898(92)90041-h
https://doi.org/10.1016/0022-4898(92)90041-h
Publikováno v:
Journal of Terramechanics. 29:173-185
Experiments were conducted in a laboratory soil bin to evaluate the performance of coated floats in different soils. Two coating materials were studied, namely enamel and Teflon, and three soil types, namely clay, loam and sandy soil were used for te
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b1eb79df19f019838be41b14c4cd7506
https://doi.org/10.1016/0022-4898(92)90024-e
https://doi.org/10.1016/0022-4898(92)90024-e