测量性能 埋藏式应变传感器的改进 青路面使用中等尺度有限元模拟
Haiyang Hu1, Gang He1, Man Huang1
1Guizhou Express Qian Tong Construction Engineering Co., Ltd., Guiyang 550001, China.
Sensors (Basel, Switzerland)
|June 27, 2025
概括
为青路面优化埋藏式应变传感器包括将传感器模量与青相匹配,并使用灵活的封装. 增加传感器尺寸长度也可以提高异质材料的应变测量精度.
科学领域:
- 土木工程 土木工程是指土木工程.
- 材料科学 材料科学 材料科学
- 地质技术工程 地质技术工程
背景情况:
- 对青路面进行精确的应变测量对于结构健康监测至关重要.
- 埋藏的应变传感器由于青的温度敏感性和异质性而面临挑战.
- 现有的传感器表现出受材料特性和安装影响的传感错误.
研究的目的:
- 为了提高埋藏在青混合物中的应变传感器的测量性能.
- 调查影响传感器-青变形兼容性和测量稳定的因素.
- 提出优化策略,以改进埋式应变传感器设计.
主要方法:
- 通过实验室实验分析现有的传感器错误.
- 用有限元模拟来研究传感器-青相互作用.
- 对青混合物异质性对传感器测量效应的评估.
主要成果:
- 传感器的等效模量应与青混合物相匹配 (建议0.25 GPa).
- 灵活的封装材料最大限度地减少了传感器硬化效应.
- 传感器标尺长度应至少是标称最大总体尺寸 (NMAS) 的三倍,以确保稳定性.
结论:
- 匹配传感器模量和使用灵活的封装是精确应变测量的关键.
- 青异质性 (模块和NMAS) 显著影响传感器稳定性.
- 优化的传感器设计提高了青路面监测的可靠性.
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