A CAD-based Automatic Drawing Method of Lever Diagram

Abstract

A CAD-based automatic drawing method for lever diagrams, using AutoCAD as the drawing environment, and integrating a lever diagram automatic drawing program in AutoCAD, the AutoCAD operation interface is provided with a lever diagram drawing interface, starting AutoCAD, AutoCAD automatically loads the lever diagram automatic drawing program , and then the drafter clicks the dialog box, and completes operations such as selecting the lever data file, setting the lever graph parameters, and filling in the title bar information in the dialog box. After confirmation, the main program automatically reads the Excel data file, and then generates the leverage graph in CAD Frame, draw the shape of the lever and fill in the lever data, count the number of connectors and levers, and fill in the detailed list, etc., which can effectively improve the drawing speed and accuracy of the designer, reduce the workload of the lever diagram proofreading and review personnel, and save drawing time.

Description

technical field [0001] The invention relates to the technical field of automatic drawing, in particular to a CAD-based automatic drawing method of a lever diagram. Background technique [0002] The aircraft ground strength test is used to verify whether the structural strength of the aircraft is qualified, to prove whether the selected structural form is reasonable, whether the strength calculation method used is correct, and whether the manufacturing process can meet the design requirements. It is also to determine the structural strength characteristics, service life and maintenance of the aircraft. The important basis of the cycle is an indispensable and important link in the process of aircraft development. [0003] Our country’s test technology is inherited from the Soviet Union, and the test loading mainly adopts the adhesive tape-lever system. This loading method has the characteristics of simple design, convenient implementation, and accurate load transmission. It ha...

AI Technical Summary

Problems solved by technology

[0005] At present, the design of lever diagrams has been heavily dependent on manual calculation and drawing. However, a large number of levers are used in structural strength tests at the component level and above, and test designers must complete the calculation of levers at thousands of nodes and the design of lever diagrams with hundreds of pages. Inevitable calculation and drawing errors and omissions in the design process will seriously affect the aircraft ground strength test

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