基于Kriging模型的风洞应变天平静态校准方法

doi:10.7527/S1000-6893.2016.0069

流体力学与飞行力学

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基于Kriging模型的风洞应变天平静态校准方法

刘志勇^1,2, 苗磊², 陶洋², 张诣², 王树民²

1. 中国科学技术大学工程科学学院, 合肥 230000;
2. 中国空气动力研究与发展中心高速空气动力研究所, 绵阳 621000

收稿日期:2016-01-15 修回日期:2016-03-09 出版日期:2016-12-15 发布日期:2016-03-18
通讯作者: 陶洋,Tel.:0816-2462105,E-mail:50323222@qq.com E-mail:50323222@qq.com
作者简介:刘志勇,男,硕士研究生,工程师。主要研究方向:空气动力学与风洞试验技术。Tel.:0816-2462105,E-mail:153469680@qq.com;苗磊,男,学士,工程师。主要研究方向:风洞天平设计与试验技术。Tel.:0816-2462356,E-mail:miaogangsir@sina.com;陶洋,男,博士,副研究员。主要研究方向:非定常空气动力学。Tel.:0816-2462105,E-mail:50323222@qq.com
基金资助:
国家自然科学基金（11372337）

A static calibration method of wind tunnel strain-gage balance based on Kriging model

LIU Zhiyong^1,2, MIAO Lei², TAO Yang², ZHANG Yi², WANG Shumin²

1. School of Engineering Science, University of Science and Technology of China, Hefei 230000, China;
2. High Speed Aerodynamics Institute, China Aerodynamics Research and Development Center, Mianyang 621000, China

Received:2016-01-15 Revised:2016-03-09 Online:2016-12-15 Published:2016-03-18
Supported by:
National Natural Science Foundation of China (11372337)

摘要/Abstract

摘要：

本文提出了一种基于Kriging代理模型的风洞应变天平静态校准方法。采用拉丁超立方设计的试验设计（DOE）方法选取校准加载点，以六分量组合加载技术为支撑，采用一阶回归基函数和EXP关联函数对校准数据构建Kriging模型，以电压信号增量和其他条件变量为自变量，通过Kriging模型对天平所受载荷进行预测。校准结果表明，与传统的OFAT（One Factor at A Time）校准方法相比，该方法具有相同的准度，加载点数量极大减少。将该方法应用于某矢量喷管推力测量天平的校准工作中，以通气流量和天平电压信号增量作为自变量，较好预测了喷管产生的推力，解决了传统校准方法难以克服的通气影响问题。

关键词: Kriging模型, 试验设计, 应变天平, 校准, 风洞

Abstract:

A new static calibration method for strain-gage balance used in wind tunnel test is introduced here. A design of experiments (DOE) method, Latin hypercube design, is used to choose samples. Kriging surrogate models constructed by using first order regression base function and EXP correlation function are mathematical models which predict loads by taking measured voltage increments and other factors as parameters, and six-component combining load calibration technique is used too. Compared with the traditional one factor at a time (OFAT) method, the new method not only has equivalent accuracy, but also remarkably reduces the number of samples. The new method is used in the calibration of some balance which is used to measure the thrust of a vector nozzle, and predicted thrust forces well. It figures out the interference of gas inflow which is hardly handled by traditional calibration method.

Key words: Kriging model, design of experiments, strain-gage balance, calibration, wind tunnel

中图分类号:

V216

刘志勇, 苗磊, 陶洋, 张诣, 王树民. 基于Kriging模型的风洞应变天平静态校准方法[J]. 航空学报, 2016, 37(12): 3685-3691.

LIU Zhiyong, MIAO Lei, TAO Yang, ZHANG Yi, WANG Shumin. A static calibration method of wind tunnel strain-gage balance based on Kriging model[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2016, 37(12): 3685-3691.

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E-mail：hkxb@buaa.edu.cn

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主管单位：中国科学技术协会主办单位：中国航空学会北京航空航天大学

基于Kriging模型的风洞应变天平静态校准方法

A static calibration method of wind tunnel strain-gage balance based on Kriging model

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