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Design Of Precision Planter's Soil-touching Parts CAD Database And Its Dynamic Analysis

Posted on:2007-05-14Degree:MasterType:Thesis
Country:ChinaCandidate:W WangFull Text:PDF
GTID:2143360212458927Subject:Agricultural mechanization project
Abstract/Summary:PDF Full Text Request
The precision planting is an advanced planting method, a necessary way to achieve agricultural modernization and also one important of steps to increase crop yield, income, and decrease cost of grain production. The precision planting provides accurate placement of seeds to soil at equal interval within rows, seed depth; it is a complicated procedure composed by profile modeling, ditching, fertilizing, planting, covering and suppressing; the requests of its field performance are quite high; its design is difficult and cost of its trial-manufacture and field test is expensive. So the most popular design model presently utilized is through repeated field practice then ameliorating defect to the perfect design. Since long time ago scientists have studied hard on fundamental theory of precision planting.Although the basic theory research has been done by a lot of people for many years, the research have focused on whether the precision seed-drill device can provide even seed, a simulation research of seeds distribution in field by Monte Carlo theory and theoretical analysis of single component and practical experiment of whole...
Keywords/Search Tags:precision planting, CAD, parametric, computer simulation, displacement of seed bounce and rolling
PDF Full Text Request
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