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Medición de Desplazamiento de Cables Basada en Radar de Microondas para Evaluación de Tensión, Vibración y
Guanxu Long1,2, Gongfeng Xin1,2, Zhiqiang Shang1,2
1Shandong Key Laboratory of Highway Technology and Safety Assessment, Jinan 250098, China.
Sensors (Basel, Switzerland)
|January 28, 2026
Resumen
El radar de microondas mide eficazmente los desplazamientos y vibraciones de los cables de los puentes, incluidas las vibraciones inducidas por vórtices (VIV). Este método sin contacto mejora las evaluaciones de seguridad y las valoraciones de amortiguación para puentes soportados por cables.
Área de la Ciencia:
- Ingeniería Estructural
- Ensayos No Destructivos
- Detección Remota
Sus antecedentes:
- Los cables de los puentes son fundamentales para la integridad estructural y requieren evaluaciones de seguridad periódicas.
- Los métodos de monitorización tradicionales pueden requerir mucha mano de obra y la instalación de sensores en lugares de difícil acceso.
Objetivo del estudio:
- Demostrar la eficacia del radar de microondas para la medición sin contacto de los desplazamientos y vibraciones de los cables de los puentes.
- Evaluar la aplicación del radar de microondas en la evaluación de las características de amortiguación de los cables.
- Validar los métodos propuestos mediante pruebas de campo en puentes atirantados.
Principales métodos:
- Despliegue de sistemas de radar de microondas en las cubiertas de los puentes para la monitorización de desplazamientos de múltiples cables.
- Utilización del método LOWESS para filtrar el ruido de baja frecuencia de la deformación de la cubierta y el movimiento del radar.
- Aplicación de radar de microondas a pruebas de decaimiento libre para la evaluación de la amortiguación del cable.
Principales resultados:
- Medición eficiente de múltiples desplazamientos de cables con cobertura completa.
- Caracterización precisa de las vibraciones de los cables, incluidas las vibraciones inducidas por vórtices (VIV), directamente a partir de datos de desplazamiento.
- Mejora de la relación señal/ruido en las evaluaciones de amortiguación, mejorando la fiabilidad sin sensores de plataforma elevados.
Conclusiones:
- El radar de microondas ofrece una solución sin contacto eficiente y fiable para monitorizar la salud de los cables de los puentes.
- La tecnología permite la caracterización directa de vibraciones y una mejor evaluación de la amortiguación, lo que contribuye a mejorar la seguridad de los puentes.
- La validación de campo confirma la aplicabilidad práctica y la eficacia del radar de microondas para la evaluación de cables de puentes.
Palabras clave:
cables de puenteestimación de amortiguaciónidentificación de fuerzasradar de microondasdetección remotacaracterización de vibracionesMás Videos Relacionados
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