Results 211 to 220 of about 20,222 (257)

The Applications of Soil Bin Test Facilities to Terramechanics: A Review

Rendiconti Lincei Scienze Fisiche E Naturali
Meng Zou, Yingchun Qi, Lianbin He
exaly   +2 more sources

Computer Simulation of a Hydrostatic Drive for a Soil Bin

SAE Technical Paper Series, 1992
<div class="htmlview paragraph">An analysis has been conducted on the hydrostatic drive system for driving a soil bin. A comparison of the bin velocity was made between the pure inertia load and inertia plus disturbance. Also, the pressure fluctuations that are predicted are quite sensitive to the leakage values chosen.
R. J. Smith, J. Chen, A. Akers, D. C. Erbach   +3 more
openaire   +1 more source

A Machine for Testing Tractor Tires in Soil Bins

Transactions of the ASAE, 1980
ABSTRACT THE National Tillage Machinery Laboratory (NTML) single-wheel tester has been redesigned to increase the tire-size capability and to provide electro-hydraulic servo control of the forward and angular velocities of the test wheel and the vertical load on the test wheel.
null E. C. Burt, null C. A. Reaves, null A. C. Bailey, null W. D. Pickering   +3 more
openaire   +1 more source

Soil Bin Scale-Model Testing

SAE Technical Paper Series, 1969
<div class="htmlview paragraph">The new soil bin facilities at the Earthmoving Equipment Division of General Motors are described. Fundamental values of soil bin scale-model testing are discussed. One of the major values of soil bin scale-model testing is the reliable prediction of vehicle performance by “scaling-up” of the soil bin scale-model ...
openaire   +1 more source

Model studies on upheaval and reconsolidation of tilled soils in a laboratory soil bin

Soil and Tillage Research, 1986
Abstract Upheaval due to primary tillage operations, generally carried out in autumn, and reconsolidation by gravity and shrinkage and by rain of a silty clay, a sandy loam and a sand soil, tilled with a rotary cultivator, a reciprocating harrow and a subsoiler, with an overall working intensity ranging from 220 to 10 m 2 m −3 and a set working ...
openaire   +2 more sources

Virtual Instrumentation of a Soil Bin for Improved Precision

SAE Technical Paper Series, 1999
<div class="htmlview paragraph">The existing instrumentation of a soil bin was retrofitted with virtual instrumentation techniques to achieve improved repeatability and more precise measurements. Current-loop sensors were added to the prime mover for improved speed control.
Suwanee Boonmung, Frank E. Eaton, Kenneth A. Jordan   +2 more
openaire   +1 more source

Soil Bin and Field Tests of an On-The-Go Soil Strength Profile Sensor

Transactions of the ASABE, 2008
An on-the-go soil strength profile sensor (SSPS) was previously developed to measure the within-field spatial variability in soil strength at five evenly spaced depths up to 50 cm. In this article, performance of the SSPS was evaluated using soil bin and field data.
null S. O. Chung, null K. A. Sudduth, null C. Plouffe, null N. R. Kitchen   +3 more
openaire   +1 more source

Soil bin test facility for soil-tillage tool interaction studies

Soil and Tillage Research, 1980
Abstract This paper describes a soil bin test facility for soil-tillage interaction studies which has been designed and constructed in the Agricultural Engineering Department of the Virginia Polytechnic Institute and State University. The basic facility consists of a stationary soil bin, soil processing carriage, tool carriage, hydrostatic drive ...
D.M. Durant, J.V. Perumpral, C.S. Desai
openaire   +1 more source

Experimental evaluation of cutting dynamic models in soil bin facility

Journal of Terramechanics, 1992
Computer Aided Engineering methods in earthmoving machines design and their automation require the developrnent of soil cutting models. These models both in two or three dimension, static or dynamic, fitted for frictional and cohesive soils, must be mutually compatible and must accomplish with soil transportation models and with machine locomotion ...
A. Boccafogli, G. Busatti, F. Gherardi, F. Malaguti, R. Paoluzzi   +4 more
openaire   +2 more sources

Dynamic Performance of Drill Coulters in a Soil Bin

Journal of Agricultural Engineering Research, 1999
Abstract A laboratory experiment was conducted to examine the vertical movement of two different conventional drill coulters in a soil bin. The bin was filled with air-dried sand, and was configured without straw, and with a surface covering of straw of two different length distributions. The objective of the experiment was to compare the movement of
openaire   +1 more source