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Modeling method and system for a D-shaped girder blade

A blade and shape technology, applied in the field of D-shaped beam blade modeling method and system, can solve problems such as low efficiency and cumbersome process, and achieve the effects of rapid modeling, reducing labor burden, and shortening development cycle

Active Publication Date: 2022-03-01
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing D-shaped girder blades are all manually operated by 3D modeling software for 3D modeling, which needs to be modified repeatedly during the design process, which is cumbersome and inefficient

Method used

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  • Modeling method and system for a D-shaped girder blade
  • Modeling method and system for a D-shaped girder blade
  • Modeling method and system for a D-shaped girder blade

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0087] figure 1 It is a flow chart of a D-shaped girder blade modeling method according to Embodiment 1 of the present invention.

[0088] see figure 1 , the D-shaped girder blade modeling method of the present embodiment includes:

[0089] Step S1: Determine the shape and component geometric characteristic parameters of the D-shaped girder blade to be designed; the shape and component geometric characteristic parameters include shape geometric characteristic parameters, skin geometric characteristic parameters, counterweight geometric characteristic parameters, and girder geometric characteristic parameters , the geometric characteristic parameters of the leading edge fittings and the geometric characteristic parameters of the trailing edge fittings.

[0090] In this step, according to the parametric definition method of the D-shaped girder blade, the characteristic parameters are defined, and the shape and component geometric characteristic parameters of the D-shaped girde...

Embodiment 2

[0125] image 3 It is a schematic diagram of a D-shaped girder blade modeling method according to Embodiment 2 of the present invention. see image 3 , the D-shaped girder blade modeling method of the present embodiment includes:

[0126] Step 1: According to the parametric definition method of the D-shaped girder blade, determine the geometric characteristic parameters describing the shape of the D-shaped girder blade and its components (skin, D-shaped girder, leading edge member, and trailing edge strip), so as to establish the D-shaped girder blade. The parameter model of the shape of the girder blade and its components lays the foundation for the subsequent automatic construction of the parameter-driven 3D model of the D-shaped girder blade on the VB windows platform through the blade parameter setting combined with the 3D geometric modeling algorithm.

[0127] Step 2: Establish a connection between the VB windows platform and the CATIAV5 COM component, use the secondary...

Embodiment 3

[0144] The present invention also provides a D-shaped girder blade modeling system, including:

[0145] The parameter setting module is used to determine the profile and component geometric feature parameters of the D-shaped girder blade to be designed; the profile and component geometric feature parameters include profile geometric feature parameters, skin geometric feature parameters, counterweight geometric feature parameters, girder Geometric characteristic parameters, leading edge fitting geometric characteristic parameters and trailing edge fitting geometric characteristic parameters.

[0146] The blade shape and each component building block are used to import the shape and component geometric feature parameters into the VBwindows application platform, and the VB windows application platform calls the API interface function of the CATIA COM component, adopts ActiveX automation technology, according to the shape and Component geometric feature parameters construct the pr...

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Abstract

The invention discloses a D-shaped girder blade modeling method and system. The method includes: determining the shape and component geometric characteristic parameters of the D-shaped girder blade to be designed; importing the shape and component geometric characteristic parameters into the VB windows application platform, and the VB windows application platform calls the API interface function of the CATIA COM component, and adopts ActiveX automation Technology, build the shape three-dimensional geometric model and component three-dimensional geometric model of the D-shaped girder blade to be designed; build the three-dimensional model digital prototype of the blade from the three-dimensional shape geometric model and the component three-dimensional geometric model. The invention can realize the automatic construction of the three-dimensional model and achieve the purpose of rapid modeling.

Description

technical field [0001] The invention relates to the field of automatic design, in particular to a modeling method and system for a D-shaped girder blade. Background technique [0002] In terms of automatic geometric modeling of propeller blades, most of the research in China mainly focuses on C-shaped beam propellers, while there are few researches on propellers with D-beam structure. For blades with C-beam structure, they are mainly used for light helicopter rotor systems, while D-beam structure blades are mainly used for medium-sized and heavy-duty helicopter rotor systems, so the automatic geometric modeling method of D-beam blades It is of great significance for constructing the digital model of medium and heavy helicopter rotor. [0003] The existing D-shaped girder blades are all manually operated by 3D modeling software for 3D modeling, which needs to be modified repeatedly during the design process, which is cumbersome and inefficient. Contents of the invention ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/15
Inventor 王国华王帅
Owner BEIHANG UNIV