Novel Sectional Profile Matching Algorithm for Gas Turbine Blades Based on Curve Chord-Length Invariant Feature

您当前的位置：

首页 >

文章列表页 >

Novel Sectional Profile Matching Algorithm for Gas Turbine Blades Based on Curve Chord-Length Invariant Feature

更新时间：2025-05-08

- Novel Sectional Profile Matching Algorithm for Gas Turbine Blades Based on Curve Chord-Length Invariant Feature
- Vol. 43, Issue 1, Pages: 81-84+94(2009)
- 作者机构：
  
  西安交通大学机械制造系统工程国家重点实验室,西安,710049
- 作者简介：
- 基金信息：
- DOI：
  CLC： TP391
- Online First：10 January 2009，
  
  Published：2009
- 稿件说明：
移动端阅览
Novel Sectional Profile Matching Algorithm for Gas Turbine Blades Based on Curve Chord-Length Invariant Feature[J]. 2009, 43(1): 81-84+94.
DOI：

Novel Sectional Profile Matching Algorithm for Gas Turbine Blades Based on Curve Chord-Length Invariant Feature[J]. 2009, 43(1): 81-84+94. DOI：

摘要

针对大型燃气轮机叶片型面形状加工质量高精度检测分析评价中的无基准坐标匹配问题

提出了一种利用截面轮廓曲线弦长几何不变特征的精确坐标匹配算法.该算法在获取对应截面轮廓数据后

基于叶片截面轮廓曲线对应弦长不变特征建立目标函数

并依此计算出理论轮廓曲线中与测量数据对应的坐标点

构造出坐标变换超静定方程组

然后通过豪斯荷尔德矩阵变换方法计算出该坐标变换的最小二乘最优解.采用该算法计算出叶片截面轮廓曲线的模拟测量数据与理论数据之间的坐标变换矩阵

得出了该变换矩阵下的截面轮廓评价结果

其偏差小于1.5 μm

表明该算法对于自由曲面的大型燃气轮机叶片型面形状加工质量的检测评价具有较好的应用效果.

Abstract

Aiming at the non-datum coordinate matching for large-scale gas turbine blade profile in high-precision detection and evaluation

an accurate coordinate matching algorithm is proposed based on the chord-length invariant feature of sectional profile. After acquiring the point data of corresponding sectional profile

the objective function is established according to the corresponding chord-length invariant feature of blade sectional profile curve. The points corresponding to the measured ones in the theoretical profile curve are calculated with the proposed algorithm. Moreover

the indeterminate equations for coordinate transformation can also be constructed. The least-square optimal solution of coordinate transformation of sectional profile can be calculated by Householder matrix transformation. As the coordinate transformations of multiple sectional profiles are calculated

the optimal coordinate transformation matrix can be obtained by linearly averaging the transformation relationships. Then

the coordinate system can be unified. The coordinate transformation matrix between simulatively measured data and theoretical data of a blade sectional profile curve is calculated with the proposed algorithm to obtain the evaluation result of sectional profile. The deviation of evaluation result gets within the acceptable range(less than 1.5 μm).

关键词

Keywords

references

古成中,吴新跃. 燃气轮机叶片实体建模 [J]. 船海工程, 2006, 35(3): 69-72.

GU Chengzhong, WU Xinyue. 3D solid modeling of the leaf of gas turbine[J]. Ship and Ocean Engineering, 2006, 35(3): 69-72.

林汝谋,金红光. 燃气轮机发电动力装置及应用[M]. 北京:中国电力出版社, 2004.

ZHANG Guoxiong, LIU Shugui, QIU Zurong, et al. Non-contact measurement of sculptured surface of rotation [J]. Chinese Journal of Mechanical Engineering(English Edition), 2004, 17(4): 571-574.

LI Yadong, GU Peihua. Free-form surface inspection techniques state of the art review [J]. Computer-Aided Design,2004,36(13): 1395-1417.

金涛,童水光.逆向工程技术[M].北京:机械工业出版社,2003.

FAN Kuangchao. A non-contact automatic measurement for free-form surface profiles [J]. Computer Integrated Manufacturing Systems, 1997,10(4): 277-285.

胡冰新, 李宁, 吕俊. 一种采用Householder变换递归实现的复矩阵QR分解算法[J]. 系统仿真学报, 2004, 16(11): 2432-2434.

HU Bingxin, LI Ning, LV Jun. A complex QR decomposition algorithm using recursive Householder transformation [J]. Acta Simulata Systematica Sinica, 2004, 16(11): 2432-2434

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Bi-Level Multi-Obj ective Optimization of a Wind-Solar Coupled Hydrogen Production System Based on the Synergy of Hybrid Electrolyzer Arrays

Study on the Thermodynamic Properties in the Anomalous Region of Supercritical Water

Mechanism and Optimal Control Strategy for Hysteresis in Rapid Dehumidification Response of Indirect Thermal Systems in Electric Vehicles

Turbulent Kinetic Energy Dissipation Mechanism of Supercritical Carbon Dioxide Leakage Flow in a Scallop Bionic Seal Cavity

Influence of Structural Parameters on the Summer Operational Characteristics of a Three-Tower-in-One Indirect Air-Cooling System

Related Author

No data

Related Institution

No data

⁰