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Study On The Frequency Of Sampling And The Controls Parameter Of The Test System For Soil Adhesion Property

Posted on:2006-06-17Degree:MasterType:Thesis
Country:ChinaCandidate:L SunFull Text:PDF
GTID:2133360155953279Subject:Agricultural mechanization project
Abstract/Summary:PDF Full Text Request
The problem of soil adhesion to the machinery components of touching soil has been the important and difficult problem that national and international technology operators have been dedicating to study and striving to solve. It is obvious that energy consuming from soil adhesion and friction is so great, if we can lower the soil adhesion and fiction to components of touching soil it will receive egregious economic effect. In the research on reducing soil adhesion and scouring soil of the terra-machine,there are many fields to need test system to measure adhesion properties, such as studying reducing adhesion, investigating soil adhesion rules, analyzing soil adhesion mechanism and scouring soil for the walking-devices and working-components of terra-machine. Therefore the devices or equipments for testing soil adhesion property are very essential. In 2001, graduate student WangBaiSheng designed a suit of system which can finish the test of soil adhesion on the whole, that is the Test System for Soil Adhesion Property of Terrain-Machine Bionics Enginerring. . The controller is a powerful and effective product typed EDC100, and the system solve some problems which the former test equipments can't solve in soil adhesion test. But there are problems of the system: 1. The results of soil adhesion exist in wide range; 2.The accuracy and speed of the dynamic curve of the system are not good. For the reason above, the inaccuracy of measurement of test results is big, so the test system needs to be improved. Based on examining the former test equipments and analyzing the interaction between soil-engaging components and soil, to improve the frequency of sampling and design the controls parameter of the test...
Keywords/Search Tags:Test system, Soil adhesion, determination of controls, parameter of PID, Frequency of sampling
PDF Full Text Request
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