Experimental set-up and calibration errors for mapping wave-breaking pressures on marine structures
| العنوان: | Experimental set-up and calibration errors for mapping wave-breaking pressures on marine structures |
|---|---|
| المؤلفون: | Andrea Marzeddu, Dimitris Stagonas, Xavi Gironella, Agustín Sánchez-Arcilla |
| المساهمون: | Universitat Politècnica de Catalunya. Departament d'Enginyeria Civil i Ambiental, Universitat Politècnica de Catalunya. LIM/UPC - Laboratori d'Enginyeria Marítima |
| المصدر: | UPCommons. Portal del coneixement obert de la UPC Universitat Politècnica de Catalunya (UPC) Recercat. Dipósit de la Recerca de Catalunya instname |
| سنة النشر: | 2018 |
| مصطلحات موضوعية: | Pressure mapping system, Environmental Engineering, 010504 meteorology & atmospheric sciences, Acoustics, Ocean Engineering, 01 natural sciences, 010305 fluids & plasmas, law.invention, Set (abstract data type), Quality (physics), law, 0103 physical sciences, Calibration, Ocean waves--Measurement, 0105 earth and related environmental sciences, Breaking wave, Cushioning, Pressure sensor, Wave impacts, Pressure measurement, Enginyeria civil::Enginyeria hidràulica, marítima i sanitària::Ports i costes [Àrees temàtiques de la UPC], Laboratory set-up, Mapping system, Environmental science, Onades -- Mesurament, Pressures |
| الوصف: | Capturing the detailed spatial variation of pressures induced by breaking waves on physical model structures has become possible using a high resolution mapping system. It can provide data with 4 measuring points/cm2, whereas the denser pressure measurements reported so far, for wave-structure interaction experiments, were limited to 0.4 pressure transducers/cm2. The paper explores the main parameters affecting the accuracy and errors of pressure data induced by laboratory set-up and system calibration. The quality of pressure maps deteriorates due to cushioning effects associated to air trapped in the sensor during manufacturing. The sensor's response is also shown to depend on the loading conditions. Non-calibrated outputs returned for impact pressures induced by impinging water-jets are more than three times smaller than the outputs recorded for static pressures, and/or for pressures developed when a material less compliant than water comes forcibly in contact with the sensor. Therefore, the calibration settings must be similar to the conditions anticipated in the experiments. To this end, a set-up and calibration methodology, designed specifically for hydraulic model tests with waves breaking on structures, are proposed and discussed in the paper. |
| وصف الملف: | application/pdf |
| اللغة: | English |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a6c78063420c2b66cfd16a01df3d42fd https://hdl.handle.net/2117/115919 |
| Rights: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....a6c78063420c2b66cfd16a01df3d42fd |
| قاعدة البيانات: | OpenAIRE |
| الوصف غير متاح. |