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Performance of Sensor Placement Strategies Used in System Identification Based on Modal Expansion

Modal expansion techniques are typically used to expand the experimental modal displacements at t...he sensor positions to other unmeasured degrees of freedom. Since in
most cases the sensors can be attached only at limited locations in a structure, an expansion is essential to assess the condition of substructures such as tanks and pipelines

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An optimal sensor placement strategy for reliable expansion of mode shapes under measurement noise and modelling error

Modal expansion techniques are typically used to expand the experimental modal displacements at sensor positions to all unmeasured degrees of freedom. Since in most cases, sensors can be attached only at limited locations in a structure, an expansion is essential to determine mode shapes, strains, stresses, etc. throughout the structure which can be used for structural health monitoring.

English