Compressor blade suction surface primitive curve modeling method based on second order ordinary differential equation
A technology of ordinary differential equations and modeling methods, applied in the field of computer-aided geometric design, which can solve problems such as loss of meaning of optimization, sensitivity to errors and parameters, and inability to coincide end points.
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[0038] The present invention will be further described in detail with reference to the accompanying drawings and embodiments.
[0039] The present invention is based on a second-order ordinary differential equation modeling method for the primitive curve of the suction surface of a compressor blade, the process of which is as follows figure 1 As shown, each step is described below.
[0040] Step 1: Obtain the compressor blade suction surface data set, and perform modeling and simulation on the suction surface primitive blade shape data.
[0041] (1) Acquisition and preprocessing of data points.
[0042] The invention processes the data obtained from the preliminary design of the compressor blade, and imports the data set of the suction surface of the compressor blade.
[0043] Firstly, the data is preprocessed, including: unifying the scale of the obtained data set; placing it in a suitable coordinate system through appropriate coordinate transformation; removing redundant o...
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