Analogue simulation method for flow channel of throwing system of green feed harvester

Abstract

The invention provides an analogue simulation method for a flow channel of a throwing system of a green feed harvester. The method comprises the following steps that: three-dimensional modeling is carried out on components of the throwing system of the green feed harvester, boolean operation is carried out on the model, polyhedral hybrid grid division is carried out on the obtained calculation model, a grid type used for CFD calculation is output, the output grid is calculated through a finite volume algorithm, a numerical value of the output grid is obtained, post-processing is carried out onthe calculated numerical value, and a corresponding data curve and a cloud picture are obtained. According to the invention, a lot of test time can be saved, and test material consumption and personnel cost are reduced; and a designer is guided to carry out optimization design on the material throwing system model through a calculation result until the design requirement is met.

Description

technical field [0001] The invention belongs to the technical field of agricultural machinery, and relates to a method for simulating flow channels of a throwing system of a green forage harvester. Background technique [0002] With the rapid growth of market demand for high-quality meat and dairy products, the demand for high-quality feed represented by silage has been promoted. However, due to the high requirements of the industry on the degree of mechanization, green storage harvesters rely heavily on foreign imports, which leads to high production costs and is not conducive to the healthy development of the industry. Through the simulation of the key functional part of the green forage harvester - the flow channel of the throwing system, it is helpful to find problems in the design stage, improve product quality and production efficiency, save costs and create value for producers and users. [0003] At present, the design and improvement of the flow channel of the throw...

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Problems solved by technology

This method takes a long time, and consumes a lot of crops, fuel, materials, and personnel during the test, and the workload of data acquisition and processing is high, and the degree of complexity is high; it is difficult to capture the flow characteristics inside the flow channel by the simple test method, and it is difficult for internal materials to The wear degree of the inner wall of the throwing barrel, the matching degree of the material flow trajectory and the bending rate of the throwing barrel cannot be intuitively obtained data; in addition, the manufacturing cycle of each round of test prototypes is not only long, but also high in cost, and the research and development pressure of the enterprise is high

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