tdehaeze/nass-micro-station-measurements
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Finish the file about measurements. Add raw measurements to git

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Thomas Dehaeze
2019-07-03 17:25:44 +02:00
parent 69610c9547
commit 4020b2bef4
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modal-analysis/index.html
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"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en">
<head>
<!-- 2019-07-03 mer. 13:53 -->
<!-- 2019-07-03 mer. 13:58 -->
<meta http-equiv="Content-Type" content="text/html;charset=utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1" />
<title>Modal Analysis of the ID31 Micro-Station</title>
@@ -256,7 +256,47 @@ for the JavaScript code in this tag.
<h1 class="title">Modal Analysis of the ID31 Micro-Station</h1>
<p>
The modal analysis of the ID31 Micro-station consists of several parts:
The goal is to experimentally extract a <b>Spatial Model</b> (mass, damping, stiffness) of the structure (shown on figure <a href="#orgf65e30f">1</a>) in order to tune the Multi-Body model.
</p>
<div id="orgf65e30f" class="figure">
<p><img src="img/nass_picture.png" alt="nass_picture.png" width="500px" />
</p>
<p><span class="figure-number">Figure 1: </span>Picture of the ID31 Micro-Station. (1) Granite (2) Translation Stage (3) Tilt Stage (4) Hexapod (5) Dummy Mass</p>
</div>
<p>
The procedure is represented on figure <a href="#org28538ba">2</a> where we go from left to right.
</p>
<div id="org28538ba" class="figure">
<p><img src="img/vibration_analysis_procedure.png" alt="vibration_analysis_procedure.png" width="400px" />
</p>
<p><span class="figure-number">Figure 2: </span>Vibration Analysis Procedure</p>
</div>
<p>
The steps are:
</p>
<ul class="org-ul">
<li>we obtain a <b>Response Model</b> (Frequency Response Functions) from measurements (described <a href="measurement.html">here</a>)</li>
<li>the response model is further converted into a <b>Modal Model</b> (Natural Frequencies and Mode Shapes) (described <a href="modal_extraction.html">here</a>)</li>
<li>this is converted into a <b>Spatial Model</b> with the Mass/Damping/Stiffness matrices (described <a href="mathematical_model.html">here</a>)</li>
</ul>
<p>
Theses matrices will be used to tune the Simscape (multi-body) model.
</p>
<p>
The modes we want to identify are those in the frequency range between 0Hz and 150Hz.
</p>
<p>
The modal analysis of the ID31 Micro-station thus consists of several parts:
</p>
<ul class="org-ul">
<li><a href="measurement.html">Frequency Response Measurements</a></li>
@@ -266,7 +306,7 @@ The modal analysis of the ID31 Micro-station consists of several parts:
</div>
<div id="postamble" class="status">
<p class="author">Author: Dehaeze Thomas</p>
<p class="date">Created: 2019-07-03 mer. 13:53</p>
<p class="date">Created: 2019-07-03 mer. 13:58</p>
<p class="validation"><a href="http://validator.w3.org/check?uri=referer">Validate</a></p>
</div>
</body>