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Modal Analysis of the ID31 Micro-Station

The goal is to experimentally extract a Spatial Model (mass, damping, stiffness) of the structure (shown on figure 1) in order to tune the Multi-Body model.

nass_picture.png

Figure 1: Picture of the ID31 Micro-Station. (1) Granite (2) Translation Stage (3) Tilt Stage (4) Hexapod (5) Dummy Mass

The procedure is represented on figure 2 where we go from left to right.

vibration_analysis_procedure.png

Figure 2: Vibration Analysis Procedure

The steps are:

Theses matrices will be used to tune the Simscape (multi-body) model.

The modes we want to identify are those in the frequency range between 0Hz and 150Hz.

The modal analysis of the ID31 Micro-station thus consists of several parts:

Author: Dehaeze Thomas

Created: 2019-07-05 ven. 10:17

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