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Method of three-dimensional vane modification design of torque converter based on conformal transformation

A technology of hydraulic torque converter and conformal transformation, which is applied in instrumentation, calculation, hydroelectric power generation, etc., can solve problems such as blade distortion, and achieve the effect of reducing error and ensuring accuracy

Active Publication Date: 2022-07-12
JILIN UNIV
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Problems solved by technology

[0004] The purpose of the present invention is to design a method for the three-dimensional blade profile modification design of a hydraulic torque converter based on conformal transformation, which solves the problem of adjusting blade angle and blade distortion in three-dimensional space

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  • Method of three-dimensional vane modification design of torque converter based on conformal transformation

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[0032]In order to make those skilled in the art better understand the technical solutions of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

[0033] see Figure 1 to Figure 6 shown;

[0034] The method for the three-dimensional vane shape modification design of a hydraulic torque converter based on conformal transformation of the present invention comprises the following steps:

[0035] Step 1: Give the orthographic projection of the three impeller blades of the torque converter (including the inlet and outlet edges of the blades) and the circulation circle of the torque converter. The three-dimensional space diagram of the blades is as follows figure 2 As shown, the orthographic projection of the three impeller blades...

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Abstract

The invention discloses a three-dimensional vane shape modification design method of a hydraulic torque converter based on conformal transformation, which solves the problems of low precision and serious distortion of three-dimensional vane modification of the traditional conformal transformation method, and belongs to the transmission technology of construction machinery. field. The method provided by the invention includes: step 1: giving the orthographic projection of the three impeller blades of the hydraulic torque converter and the circulating circle of the hydraulic torque converter; step 2: finding the edge of the inlet and outlet of the blade on the orthographic projection of the blade; step 3: Make a multi-cylindrical expansion diagram of the blade curve; Step 4: Transform the blade angle, find the coordinates of the new blade, and obtain a new blade space curve; Step 5: The blade space curve is stitched into a three-dimensional blade entity by constructing a ruled surface. The method provided by the invention can greatly reduce the error caused by the traditional conformal transformation mapping, solve the disadvantage of serious distortion of the blade angle in three-dimensional change, and at the same time ensure the accuracy of the shape of the blade head without the disadvantage of accumulating errors.

Description

technical field [0001] The invention belongs to the technical field of construction machinery transmission, and particularly relates to a method for the modification and design of a three-dimensional vane shape of a hydraulic torque converter based on conformal transformation. Background technique [0002] Blade design is the core of torque converter design, and traditional blade design is based on one-dimensional beam theory. The torque converter designed by the one-dimensional beam theory often cannot meet the actual requirements of the project, and the blade parameters need to be adjusted to meet the actual engineering needs. The blade of the torque converter is a highly distorted spatial shape. In order to actually produce it in the project, it is necessary to express its spatial shape, that is, to give the spatial coordinates of the blade shape. When the traditional conformal transformation expands the non-working surface curves of the airfoil working surface of the fr...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/17G06T11/20G06T17/00
CPCG06T11/203G06T17/00Y02E10/20
Inventor 冉子林马文星刘春宝
Owner JILIN UNIV
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