摘要
受限于风洞试验和计算机数值模拟分析(CFD)与空中真实飞行环境的差异性,基于风洞数据和CFD数据而建立起来的气动模型往往无法直接满足CCAR-60部,因此,有必要对飞机的气动模型进行辨识和修正。本文简要论述了民机领域气动模型修正的一般流程和注意事项,利用试飞数据来辨识气动参数,并对模型进行修正以获取精确的气动模型。
Constrained by the differences between wind tunnel test and computer numerical simulation(CFD)and real flight environment in the sky,aerodynamic models based on wind tunnel data and CFD data often cannot directly meet the CCAR-60 department.Therefore,It is necessary to identify and correct the aerodynamic model of the aircraft.This article briefly discusses the general flow and precautions of aerodynamic model correction in the field of civil aircraft,uses test flight data to identify aerodynamic parameters,and corrects the model to obtain an accurate aerodynamic model.
作者
吴戴鹏
王磊
黎先平
WU Dai-peng;WANG Lei;LI Xian-ping(Shanghai Aircraft Design and Research Institute,Shanghai 201210,China)
出处
《科技视界》
2018年第6期111-112,共2页
Science & Technology Vision
关键词
气动模型
参数辨识
模型修正
Aerodynamic model
Parameter identification
Model correction
