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一种脉冲风洞测力系统单矢量动态校准方法
Authors
姜宗林
杨瑞鑫
汪运鹏
Publication date
15 January 2021
Publisher
Abstract
本发明提供一种脉冲风洞测力系统单矢量动态校准方法,将测力系统通过拉线与阶跃载荷加/卸载机械装置连接,利用数据采集系统对拉线施力前后的数据采集,以零载荷和拉力载荷处理后的组合载荷作为输出样本,以剪断拉线时的多分量阶跃载荷作为输入样本,代入到卷积神经网络中进行训练,得到消除阶跃载荷中干扰信号的人工智能模型,再将人工智能模型应用于当前状态下的脉冲型风洞测力试验数据的处理,最终得到真实气动力载荷。本发明通过风洞天平直接读取沿拉线拉力矢量方向的载荷数值,将卷积神经网络技术引入进行动态校准,消除惯性振动引起的干扰信号,然后直接应用于实验,提高了校准效率,同时提高脉冲型风洞瞬态气动力测量精度,减小测量误差
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Institute Of Mechanics,Chinese Academy of Sciences
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Last time updated on 11/12/2021