Force Mathematical Model And Computer Simulation Of The Subsoiler

As an important item of farming conservation tillage, subsoiling technology takes a significant role on the agricultural persistent development. Many years' practice proved that, the subsoiling technology is one kind of extremely reasonable cropping system, which is an essential mechanization work method that can help us gain high crops. However, because all sorts of reasons subsoiling technology has not still obtained the widespread application, but comparatively high operating resistance was one of the most main reasons.The subsoiler is the core part of the subsoiling technology, which's design parameter whether reasonable directly affect the operating resistance. In our country, the subsoilers that have used mainly on the farming machinery at present was chinel subsoiler and bulk subsoiler. This dissertation started with improving the parameter of structure, carried on the force analysis to these two kind of forms subsoiler and established their force mathematical model, thus related each parameter with the operating resistance, used the established mathematical model to analysis the subsoiler's design parameter, studied their stress condition through changing the parameter, compared these two kind of subsoiler and discovered their respective advantage and deficiency, so that we can find out the influence between each parameter with the working resistance, like this not only may optimize the parameter of the subsoiler, but also can reduce the design procedure, economize the time, save the resources and enhance the efficiency.At the same time, this dissertation has also compiled the procedure to solve the mathematical model by using Visual Basic,which is one of computer higher order languages, and has carried on the computer simulation to them, draw up the model curve, like this we could further simplify the computation process, so it is not only more convenient for we to compare each parameter and the working resistance relations, but also may discover the mutual influence relations between each parameter. So it could provide the reliable basis for us to design the more superior subsoilers, and achieved the reduced cultivation resistance goal. The dissertation has also established the straight-leg-type shaft's and the arc-type shaft's stress mathematical model, and carried on the simulation and the analysis, discovered their each one quite reasonable parameter, and compares their...