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UNR NEES Training Workshop: “Shake-Table Testing”

UNR NEES Training Workshop: “Shake-Table Testing”. Welcome to NEES@UNR. A multiple shake-table research facility Standard description of the facility capabilities… NEES Equipment: Three Biaxial Shake-tables (two horizontal axes) One Biaxial Shake-table (one horizontal + one vertical)

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UNR NEES Training Workshop: “Shake-Table Testing”

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  1. UNR NEES Training Workshop:“Shake-Table Testing”

  2. Welcome to NEES@UNR • A multiple shake-table research facility • Standard description of the facility capabilities… • NEES Equipment: • Three Biaxial Shake-tables (two horizontal axes) • One Biaxial Shake-table (one horizontal + one vertical) • Data acquisition system • Telepresence: cameras, etc • Non-NEES Equipment: • Actuators • Modular/reconfigurable reaction blocks/walls

  3. Purpose of the Training Workshop Learn about what is involved in: planning, preparing and conducting a shake-table experiment

  4. Workshop Program: Day 1 • Overview of dynamic testing methods: Pseudo-dynamic testing, Shake-table testing, Real-time hybrid testing • Overview of NEES shake-table facilities: Components and specifications • Test specimen: Dimensional analysis, similitude, modeling and computational simulations • Example case studies: In-class group activity I – Designing a scaled-model of a building

  5. Workshop Program: Day 1 (cont’d) • Test planning: Specimen design, construction, material and sub-assembly testing, Computational simulations, Input base excitations: Generated artificial and/or historically recorded, System tuning and ambient vibrations • Data acquisition and instrumentation: Brief • Test protocol: Introduction; detailed coverage next day

  6. Workshop Program: Day 2 • Test protocol: Implementation; System identification: White Noise, Sine Sweep, Snap-back • Input base excitations: Generated artificial and/or historically recorded, Low-level excitations, Incremental testing to “failure” • Data acquisition and instrumentation: Closer look • Data types, processing/reduction, analysis, error • Laboratory group activity I

  7. Workshop Program: Day 3 • Laboratory group activity II – Construct, instrument and test your specimen • Workshop post-mortem and feedback

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