A design method and system for near-net-shape blade fixtures for aeroengines
An aero-engine and near-net-shaping technology, which is applied in design optimization/simulation, calculation, graphics and image conversion, etc., can solve the problems of large demand for fixtures and the inability to realize fixture design and layout optimization, and achieve low-cost effects
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Embodiment 1
[0086] refer to figure 1 In this embodiment, it is embodied as a function module developed based on MATLAB language, and its main functions are described as follows: the present invention can realize the task of tooling design for new blades, and match it with existing tooling cases similar to blades through algorithms, based on The blade mesh affine transformation method realizes the geometric mapping relationship between the case blade and the target blade, based on the geometric relationship between the two, the inheritance of the tooling information of the case blade is realized, and finally the fixture layout information and fixture structure characteristics of the target blade are formed. Specifically, the following steps are included:
[0087] 1) Refer to figure 2 , to establish a case blade tooling database.
[0088] 1.1) Import the scanning model of the near-net shape blade of the aeroengine into the CAD software;
[0089] 1.2) According to the production experien...
Embodiment 2
[0106] The present embodiment provides a design system for aero-engine near-net-shape blade fixtures, which includes: a database building module, used to establish a case blade tooling database; a similar case blade determination module, used to adopt a similarity matching method, from the construction Find the case blade similar to the target blade in the case blade tooling database; the mechanical structure 3D model determination module is used to determine the 3D model of the mechanical structure in the target blade fixture based on the optimal tooling fixture model corresponding to the similar case blade; the 3D layout point The determination module is used to perform spatial projection on similar case leaves and target leaves, obtain two-dimensional plan information of target leaves and similar case leaves, and perform affine transformation and Inverse transformation to obtain the layout of the three-dimensional positioning points and clamping points of the target blade; t...
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