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2. Modal test tutorial

An experimental modal analysis project can be decomposed in following steps

• before the test, preparation and design (see section 2.7)
• after data acquisition, import into the SDT (see section 2.2)
• navigation through data in the iiplot figure (see section 2.1)
• identification procedure :
  • initialize the pole list (see section 2.3)
  • setup the identification options (see section 2.4)
  • identify the pole residues and evaluate the identification quality (see section 2.5)
  • optimize poles to improve the identification quality (see section 2.6)
• handling of MIMO tests and other model transformations (output of identified models to state-space, normal mode, ... formats, taking reciprocity into account, ...) (see section 2.8)

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Figure 2.1: Modal test protocol with links to corresponding sections

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Further steps (test/analysis correlation, shape expansion, structural dynamics modification) are discussed in chapter section 3.