实时传感器用于测量基于全时域温度反转方法的热保护结构的表面温度
Yuhao Liu1, Xiong Zhao2, Xiangyu Wei1
1School of Physics, Northwest University, Xi'an 710100, China.
Sensors (Basel, Switzerland)
|April 12, 2025
概括
本研究介绍了一种使用嵌入式传感器和先进的反转算法实时监测热保护结构 (TPS) 温度的新方法. 该方法可以准确地重建温度,而不需要先前的材料数据,从而提高高超音速车辆的安全性.
科学领域:
- 航空航天工程 航空航天工程
- 材料科学 材料科学 材料科学
- 热力工程是热力工程中的一个.
背景情况:
- 热保护结构 (TPS) 的实时表面热监测对于确保高超音速车辆的安全至关重要.
- 现有的方法通常需要对材料热性质的预先了解,这限制了它们的实际应用.
研究的目的:
- 开发一种有效的方法来实时重建TPS的温度.
- 将嵌入式传感器阵列与增强的全职域逆转算法集成.
- 在不需要对TPS热参数的预先知识的情况下评估算法的性能.
主要方法:
- 采用了三种嵌入式传感器的阵列用于TPS监控.
- 采用了一种增强的全职域逆转算法,并采用重叠的滑动窗口方法.
- 使用石英灯加热装置进行了数值模拟和实验验证.
主要成果:
- 拟议的反转方法证明了低频采样 (1 Hz) 的实用性和对噪声的稳定性.
- 温度重建的准确性受到窗口大小和数据噪声的显著影响,但窗口滑动步骤的影响很小.
- 萨维茨基-戈莱过提高了测量精度,将平均相对误差从18.4%降至6.7%.
结论:
- 开发的实时传感器方法为TPS温度监测提供了可靠和高效的解决方案.
- 这些发现突出了高超音速车辆安全方面的实际工程应用的潜力.
- 优化窗口大小,根据热歇斯底里时间,是准确温度重建的关键.
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