实验流体力学2012，Vol.26Issue(1)：100-104,5.
T型尾翼颤振模型光学测量实验与弯扭特性解算
Optical measurement experiments on T-tails flutter model and bending-torsion characteristics calculation
摘要
Abstract
Optical measurement experiments on T-tails flutter model of a high speed aircraft were carried out in half-model test section in FL-26 transonic wind tunnel, and bending-torsion characteristics of T-tails flutter model were calculated based on measurement results. A number of white dots were painted on surface of flutter model to track displacements of model surface. Two industrial cameras with 4 million pixels were fixed on the rib above the observing hole on the top wall of wind tunnel test section to collect images, and the images were identified and computed by the self-developed software to calculate 3-D coordinates of painted dots on T-tails flutter model surface. The dots' 3-D coordinates were changed to coordinates in wind coordinate system by coordinate transformation, and section torsion angle and elastic axis displacement were calculated from the differences between dots' coordinates at different time. Image collection experiments on right stabilizer of T-tails and calculation results of bending-torsion characteristics showed that noncontact optical measurement technology could be used in quantitative analysis on high speed flutter tests.关键词
T型尾翼/颤振/光学测量/弯扭特性/风洞实验Key words
T-tails/flutter/optical measurement/ bending-torsion characteristics/ wind tunnel分类
航空航天引用本文复制引用
孙岩,张征宇,吕彬彬,罗川,周桂宇..T型尾翼颤振模型光学测量实验与弯扭特性解算[J].实验流体力学,2012,26(1):100-104,5.基金项目
国家自然科学基金(51075385) （51075385）
国家"973"计划课题(2009CB723802) （2009CB723802）
CARDC预研基金 （）
