مؤتمر
Parametric modal testing using slow but continuous variation of operating conditions. Illustration on a contact bench.
| العنوان: | Parametric modal testing using slow but continuous variation of operating conditions. Illustration on a contact bench. |
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| المؤلفون: | Malacrida Alves, Guilherme, Balmes, Etienne, Martin, Guillaume, Chancelier, Thierry, Kassa, Enzo |
| المساهمون: | École Nationale Supérieure des Arts et Métiers (ENSAM), SDTools, Hitachi Astemo, Institut Supérieur de l'Aéronautique et de l'Espace ISAE-SUPAERO |
| المصدر: | Surveillance, Vibrations, Shock and Noise ; https://hal.science/hal-04165665Test ; Surveillance, Vibrations, Shock and Noise, Institut Supérieur de l'Aéronautique et de l'Espace [ISAE-SUPAERO], Jul 2023, Toulouse, France |
| بيانات النشر: | HAL CCSD |
| سنة النشر: | 2023 |
| المجموعة: | Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
| مصطلحات موضوعية: | [SPI]Engineering Sciences [physics], [SPI.ACOU]Engineering Sciences [physics]/Acoustics [physics.class-ph], [SPI.MECA.VIBR]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Vibrations [physics.class-ph], [SPI.SIGNAL]Engineering Sciences [physics]/Signal and Image processing |
| جغرافية الموضوع: | Toulouse, France |
| الوصف: | International audience ; Many systems have vibration properties, modes and non-linear limit cycles, that are significantly affected byenvironmental properties such as temperature, pressure, rotation speed, . The classical testing strategy is toselect a number of fixed operating conditions, wait for the system to stabilize at each condition and extract thevibration characteristics. A lot of test configurations may thus be required to finely characterize the influenceof environmental parameters on the system dynamics. The novel point of view taken here is to consider that ina number of applications, one can generate a slow variation of the operating condition that is sufficiently belowthe frequencies of interest to allow continuous monitoring of vibration properties.The application chosen as illustration of the process is a test bench seeking to characterize contact stiffnessproperties in a brake subassembly focusing on piston/backplate and piston/chamber contacts. A first roughestimate of the relation between modal frequency and pressure is obtained by traditional modal tests. A seriesof tests then changes pressure and excitation frequency continuously seeking to track phase resonance and thusupdate the estimates of resonance frequency, damping and shape changes at a very large number of pressurepoints. The proposed methodology using a feed-forward approach results in tests that are inherently certain toprovide a result in a controlled amount of time |
| نوع الوثيقة: | conference object |
| اللغة: | French |
| العلاقة: | hal-04165665; https://hal.science/hal-04165665Test; https://hal.science/hal-04165665/documentTest; https://hal.science/hal-04165665/file/SURVISHNO23_ParamId.pdfTest |
| الإتاحة: | https://hal.science/hal-04165665Test https://hal.science/hal-04165665/documentTest https://hal.science/hal-04165665/file/SURVISHNO23_ParamId.pdfTest |
| حقوق: | info:eu-repo/semantics/OpenAccess |
| رقم الانضمام: | edsbas.23979E5D |
| قاعدة البيانات: | BASE |
| الوصف غير متاح. |