A method for testing the deformation-responsive physical properties of flexible crops operated by airflow

A physical property testing and flexible technology, which is applied in the testing of plants/trees, aerodynamic testing, and testing of machine/structural components, etc., can solve the problem that the physical property testing method of flexible crops is single, and the test results cannot accurately characterize the physical characteristics of flexible crops , Aerial spraying droplet deposition effects and other issues, to achieve the effect of good deposition effect

CN110333045BActive Publication Date: 2020-08-14SOUTH CHINA AGRI UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2020-08-14

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Abstract

The invention discloses an airflow work flexible crop deformation response physical property test method. The method comprises the following steps of step1, selecting a type of a flexible crop which carries out airflow work and selecting a plot in an airflow work area as a test area used for physical property testing of the flexible crop; step2, collecting physical property data of the flexible crop; step 3, processing the physical property data of the flexible crop; step4, calculating a physical property test result of the flexible crop: and step 5: repeating the step 1 to the step 4 for multiple times, taking an average value of the physical property test results of the flexible crop as the final physical property test result of the flexible crop. By using the test method, a deformationresponse characteristic of the flexible crop under the airflow work can be accurately explored, and method guidance and technical specifications are provided for aviation spray airflow work.
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Description

technical field

[0001] The invention relates to a method for testing physical properties of flexible crops, in particular to a method for testing physical properties of deformation-responsive flexible crops for airflow operation. Background technique

[0002] In recent years, with the advancement of agricultural mechanization and agricultural modernization, aerial plant protection technology has become more and more widely used due to its advantages of high operating efficiency, high pesticide utilization rate, and good control effect. Agricultural aerial spraying operations mainly use manned fixed-wing Aircraft, manned helicopters, single-rotor and multi-rotor UAVs are the main models.

[0003] During the aerial plant protection spraying operation, due to the flight characteristics of the airframe, a strong downwash airflow will be generated. Under the action of the strong airflow, the sprayed flexible crops will produce different degrees of deformation response. For examp...

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Embodiment Construction

[0056] The present invention will be further described in detail below in conjunction with the embodiments and the accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0057] see Figure 1-Figure 5 , the airflow operation flexible crop deformation response physical property testing method of the present invention comprises the following steps:

[0058] Step 1: Select the type of flexible crops to be operated by airflow, and select a plot in the airflow operation area as a test area for physical property testing of flexible crops, wherein the area of ​​the plot is S, where S =100m 2 ;

[0059] Step 2: Collect physical property data of the flexible crop itself, wherein the physical property data of the flexible crop itself includes flexible crop height h, planting density f, leaf area index L and bending resistance;

[0060] Step 3, processing the physical property data of the flexible crop itself:

[0061] Calculate flexible crop he...