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<div id="content">
<h1 class="title">Measurements</h1>
<div id="table-of-contents">
<h2>Table of Contents</h2>
<div id="text-table-of-contents">
<ul>
<li><a href="#org7cd3616">1. Experimental conditions</a></li>
<li><a href="#org82e34a9">2. Measurements procedure</a></li>
<li><a href="#org60dfbd6">3. Measurement Channels</a></li>
<li><a href="#org0a25c6d">4. Experiments</a></li>
<li><a href="#orgad4b82f">5. Data Analysis</a>
<ul>
<li><a href="#org33bbec7">5.1. Loading and pre-processing of the data</a></li>
<li><a href="#org9a80753">5.2. X-direction FRF</a></li>
<li><a href="#org9f734e8">5.3. Y-direction FRF</a></li>
<li><a href="#org3ac5c7f">5.4. Z-direction FRF</a></li>
</ul>
</li>
</ul>
</div>
</div>
<div id="outline-container-org7cd3616" class="outline-2">
<h2 id="org7cd3616"><span class="section-number-2">1</span> Experimental conditions</h2>
<div class="outline-text-2" id="text-1">
<ul class="org-ul">
<li>The granite is not glued to the floor</li>
<li>FS = 512Hz</li>
<li>Made by Marc Lesourd on the 12 of January 2018</li>
</ul>
</div>
</div>
<div id="outline-container-org82e34a9" class="outline-2">
<h2 id="org82e34a9"><span class="section-number-2">2</span> Measurements procedure</h2>
<div class="outline-text-2" id="text-2">
<p>
<b>Geophones</b>
L-28LB geophones (table <a href="#orgc0074ea">1</a>) are placed on
</p>
<ul class="org-ul">
<li>Marle</li>
<li>Tilt Stage</li>
<li>Top of Hexapod</li>
</ul>
<table id="orgc0074ea" border="2" cellspacing="0" cellpadding="6" rules="groups" frame="hsides">
<caption class="t-above"><span class="table-number">Table 1:</span> L-28LB Geophone characteristics</caption>
<colgroup>
<col class="org-left" />
<col class="org-right" />
</colgroup>
<tbody>
<tr>
<td class="org-left">Natural Frequency [Hz]</td>
<td class="org-right">4.5</td>
</tr>
<tr>
<td class="org-left">Weight [g]</td>
<td class="org-right">140</td>
</tr>
<tr>
<td class="org-left">Sensitivity [V/(m/s)]</td>
<td class="org-right">31.3</td>
</tr>
</tbody>
</table>
<p>
The structure is excited using an <b>instrumented hammer</b> with impacts on
</p>
<ul class="org-ul">
<li>Marble X-Y-Z</li>
<li>Hexapod X-Y-Z</li>
</ul>
</div>
</div>
<div id="outline-container-org60dfbd6" class="outline-2">
<h2 id="org60dfbd6"><span class="section-number-2">3</span> Measurement Channels</h2>
<div class="outline-text-2" id="text-3">
<table id="orge84aae0" border="2" cellspacing="0" cellpadding="6" rules="groups" frame="hsides">
<caption class="t-above"><span class="table-number">Table 2:</span> Description of each measurement channel</caption>
<colgroup>
<col class="org-right" />
<col class="org-left" />
<col class="org-left" />
<col class="org-left" />
</colgroup>
<thead>
<tr>
<th scope="col" class="org-right">Ch. nb</th>
<th scope="col" class="org-left">Element</th>
<th scope="col" class="org-left">Location</th>
<th scope="col" class="org-left">Direction</th>
</tr>
</thead>
<tbody>
<tr>
<td class="org-right">1</td>
<td class="org-left">Hammer</td>
<td class="org-left">variable</td>
<td class="org-left">&#xa0;</td>
</tr>
</tbody>
<tbody>
<tr>
<td class="org-right">2</td>
<td class="org-left">Geophone</td>
<td class="org-left">Marble</td>
<td class="org-left">X-Y-Z</td>
</tr>
<tr>
<td class="org-right">3</td>
<td class="org-left">Geophone</td>
<td class="org-left">Tilt stage</td>
<td class="org-left">X-Y-Z</td>
</tr>
<tr>
<td class="org-right">4</td>
<td class="org-left">Geophone</td>
<td class="org-left">Top of Hexapod</td>
<td class="org-left">X-Y-Z</td>
</tr>
</tbody>
</table>
</div>
</div>
<div id="outline-container-org0a25c6d" class="outline-2">
<h2 id="org0a25c6d"><span class="section-number-2">4</span> Experiments</h2>
<div class="outline-text-2" id="text-4">
<table id="org8ade4d2" border="2" cellspacing="0" cellpadding="6" rules="groups" frame="hsides">
<caption class="t-above"><span class="table-number">Table 3:</span> Description of the location of direction of the excitation for each measurement</caption>
<colgroup>
<col class="org-right" />
<col class="org-left" />
<col class="org-left" />
</colgroup>
<thead>
<tr>
<th scope="col" class="org-right">Meas. nb</th>
<th scope="col" class="org-left">Location</th>
<th scope="col" class="org-left">Direction</th>
</tr>
</thead>
<tbody>
<tr>
<td class="org-right">1</td>
<td class="org-left">Marble</td>
<td class="org-left">X</td>
</tr>
<tr>
<td class="org-right">2</td>
<td class="org-left">Hexapod</td>
<td class="org-left">X</td>
</tr>
</tbody>
<tbody>
<tr>
<td class="org-right">3</td>
<td class="org-left">Marble</td>
<td class="org-left">Y</td>
</tr>
<tr>
<td class="org-right">4</td>
<td class="org-left">Hexapod</td>
<td class="org-left">Y</td>
</tr>
</tbody>
<tbody>
<tr>
<td class="org-right">5</td>
<td class="org-left">Marble</td>
<td class="org-left">Z</td>
</tr>
<tr>
<td class="org-right">6</td>
<td class="org-left">Hexapod</td>
<td class="org-left">Z</td>
</tr>
</tbody>
</table>
</div>
</div>
<div id="outline-container-orgad4b82f" class="outline-2">
<h2 id="orgad4b82f"><span class="section-number-2">5</span> Data Analysis</h2>
<div class="outline-text-2" id="text-5">
</div>
<div id="outline-container-org33bbec7" class="outline-3">
<h3 id="org33bbec7"><span class="section-number-3">5.1</span> Loading and pre-processing of the data</h3>
<div class="outline-text-3" id="text-5-1">
<p>
Data is scaled and integrated one time to go from velocity to displacement.
</p>
<div class="org-src-container">
<pre class="src src-matlab">load<span style="color: #707183;">(</span><span style="color: #008000;">'./raw_data/freq_frf.mat'</span><span style="color: #707183;">)</span> <span style="color: #8D8D84; font-style: italic;">% freq_frf</span>
w = <span style="color: #D0372D;">j</span><span style="color: #6434A3;">*</span><span style="color: #D0372D;">2</span><span style="color: #6434A3;">*</span><span style="color: #D0372D;">pi</span><span style="color: #6434A3;">*</span>freq_frf; <span style="color: #8D8D84; font-style: italic;">% j.omega in [rad/s]</span>
scale_factor = <span style="color: #D0372D;">1</span>;
load<span style="color: #707183;">(</span><span style="color: #008000;">'./raw_data/frf_marble_x.mat'</span><span style="color: #707183;">)</span> <span style="color: #8D8D84; font-style: italic;">% ReIm1</span>
frf_marble_x = zeros<span style="color: #707183;">(</span>size<span style="color: #7388D6;">(</span>ReIm1, <span style="color: #D0372D;">1</span><span style="color: #7388D6;">)</span>, <span style="color: #D0372D;">3</span><span style="color: #707183;">)</span>;
frf_marble_x<span style="color: #707183;">(</span><span style="color: #6434A3;">:</span>, <span style="color: #D0372D;">1</span><span style="color: #707183;">)</span> = <span style="color: #6434A3;">-</span>scale_factor<span style="color: #6434A3;">*</span>ReIm1<span style="color: #707183;">(</span><span style="color: #6434A3;">:</span>, <span style="color: #D0372D;">2</span><span style="color: #707183;">)</span><span style="color: #6434A3;">./</span>w; <span style="color: #8D8D84; font-style: italic;">% marble_x</span>
frf_marble_x<span style="color: #707183;">(</span><span style="color: #6434A3;">:</span>, <span style="color: #D0372D;">2</span><span style="color: #707183;">)</span> = <span style="color: #6434A3;">-</span>scale_factor<span style="color: #6434A3;">*</span>ReIm1<span style="color: #707183;">(</span><span style="color: #6434A3;">:</span>, <span style="color: #D0372D;">3</span><span style="color: #707183;">)</span><span style="color: #6434A3;">./</span>w; <span style="color: #8D8D84; font-style: italic;">% tilt_x</span>
frf_marble_x<span style="color: #707183;">(</span><span style="color: #6434A3;">:</span>, <span style="color: #D0372D;">3</span><span style="color: #707183;">)</span> = <span style="color: #6434A3;">-</span>scale_factor<span style="color: #6434A3;">*</span>ReIm1<span style="color: #707183;">(</span><span style="color: #6434A3;">:</span>, <span style="color: #D0372D;">4</span><span style="color: #707183;">)</span><span style="color: #6434A3;">./</span>w; <span style="color: #8D8D84; font-style: italic;">% hexa_x</span>
load<span style="color: #707183;">(</span><span style="color: #008000;">'./raw_data/frf_hexa_x.mat'</span><span style="color: #707183;">)</span> <span style="color: #8D8D84; font-style: italic;">% ReIm2</span>
frf_hexa_x = zeros<span style="color: #707183;">(</span>size<span style="color: #7388D6;">(</span>ReIm2, <span style="color: #D0372D;">1</span><span style="color: #7388D6;">)</span>, <span style="color: #D0372D;">3</span><span style="color: #707183;">)</span>;
frf_hexa_x<span style="color: #707183;">(</span><span style="color: #6434A3;">:</span>, <span style="color: #D0372D;">1</span><span style="color: #707183;">)</span> = <span style="color: #6434A3;">-</span>scale_factor<span style="color: #6434A3;">*</span>ReIm2<span style="color: #707183;">(</span><span style="color: #6434A3;">:</span>, <span style="color: #D0372D;">2</span><span style="color: #707183;">)</span><span style="color: #6434A3;">./</span>w; <span style="color: #8D8D84; font-style: italic;">% marble_x</span>
frf_hexa_x<span style="color: #707183;">(</span><span style="color: #6434A3;">:</span>, <span style="color: #D0372D;">2</span><span style="color: #707183;">)</span> = <span style="color: #6434A3;">-</span>scale_factor<span style="color: #6434A3;">*</span>ReIm2<span style="color: #707183;">(</span><span style="color: #6434A3;">:</span>, <span style="color: #D0372D;">3</span><span style="color: #707183;">)</span><span style="color: #6434A3;">./</span>w; <span style="color: #8D8D84; font-style: italic;">% tilt_x</span>
frf_hexa_x<span style="color: #707183;">(</span><span style="color: #6434A3;">:</span>, <span style="color: #D0372D;">3</span><span style="color: #707183;">)</span> = <span style="color: #6434A3;">-</span>scale_factor<span style="color: #6434A3;">*</span>ReIm2<span style="color: #707183;">(</span><span style="color: #6434A3;">:</span>, <span style="color: #D0372D;">4</span><span style="color: #707183;">)</span><span style="color: #6434A3;">./</span>w; <span style="color: #8D8D84; font-style: italic;">% hexa_x</span>
load<span style="color: #707183;">(</span><span style="color: #008000;">'./raw_data/frf_marble_y.mat'</span><span style="color: #707183;">)</span> <span style="color: #8D8D84; font-style: italic;">% ReIm3</span>
frf_marble_y = zeros<span style="color: #707183;">(</span>size<span style="color: #7388D6;">(</span>ReIm3, <span style="color: #D0372D;">1</span><span style="color: #7388D6;">)</span>, <span style="color: #D0372D;">3</span><span style="color: #707183;">)</span>;
frf_marble_y<span style="color: #707183;">(</span><span style="color: #6434A3;">:</span>, <span style="color: #D0372D;">1</span><span style="color: #707183;">)</span> = <span style="color: #6434A3;">-</span>scale_factor<span style="color: #6434A3;">*</span>ReIm3<span style="color: #707183;">(</span><span style="color: #6434A3;">:</span>, <span style="color: #D0372D;">2</span><span style="color: #707183;">)</span><span style="color: #6434A3;">./</span>w; <span style="color: #8D8D84; font-style: italic;">% marble_y</span>
frf_marble_y<span style="color: #707183;">(</span><span style="color: #6434A3;">:</span>, <span style="color: #D0372D;">2</span><span style="color: #707183;">)</span> = <span style="color: #6434A3;">-</span>scale_factor<span style="color: #6434A3;">*</span>ReIm3<span style="color: #707183;">(</span><span style="color: #6434A3;">:</span>, <span style="color: #D0372D;">3</span><span style="color: #707183;">)</span><span style="color: #6434A3;">./</span>w; <span style="color: #8D8D84; font-style: italic;">% tilt_y</span>
frf_marble_y<span style="color: #707183;">(</span><span style="color: #6434A3;">:</span>, <span style="color: #D0372D;">3</span><span style="color: #707183;">)</span> = <span style="color: #6434A3;">-</span>scale_factor<span style="color: #6434A3;">*</span>ReIm3<span style="color: #707183;">(</span><span style="color: #6434A3;">:</span>, <span style="color: #D0372D;">4</span><span style="color: #707183;">)</span><span style="color: #6434A3;">./</span>w; <span style="color: #8D8D84; font-style: italic;">% hexa_y</span>
load<span style="color: #707183;">(</span><span style="color: #008000;">'./raw_data/frf_hexa_y.mat'</span><span style="color: #707183;">)</span> <span style="color: #8D8D84; font-style: italic;">% ReIm4</span>
frf_hexa_y = zeros<span style="color: #707183;">(</span>size<span style="color: #7388D6;">(</span>ReIm4, <span style="color: #D0372D;">1</span><span style="color: #7388D6;">)</span>, <span style="color: #D0372D;">3</span><span style="color: #707183;">)</span>;
frf_hexa_y<span style="color: #707183;">(</span><span style="color: #6434A3;">:</span>, <span style="color: #D0372D;">1</span><span style="color: #707183;">)</span> = scale_factor<span style="color: #6434A3;">*</span>ReIm4<span style="color: #707183;">(</span><span style="color: #6434A3;">:</span>, <span style="color: #D0372D;">2</span><span style="color: #707183;">)</span><span style="color: #6434A3;">./</span>w; <span style="color: #8D8D84; font-style: italic;">% marble_y</span>
frf_hexa_y<span style="color: #707183;">(</span><span style="color: #6434A3;">:</span>, <span style="color: #D0372D;">2</span><span style="color: #707183;">)</span> = scale_factor<span style="color: #6434A3;">*</span>ReIm4<span style="color: #707183;">(</span><span style="color: #6434A3;">:</span>, <span style="color: #D0372D;">3</span><span style="color: #707183;">)</span><span style="color: #6434A3;">./</span>w; <span style="color: #8D8D84; font-style: italic;">% tilt_y</span>
frf_hexa_y<span style="color: #707183;">(</span><span style="color: #6434A3;">:</span>, <span style="color: #D0372D;">3</span><span style="color: #707183;">)</span> = scale_factor<span style="color: #6434A3;">*</span>ReIm4<span style="color: #707183;">(</span><span style="color: #6434A3;">:</span>, <span style="color: #D0372D;">4</span><span style="color: #707183;">)</span><span style="color: #6434A3;">./</span>w; <span style="color: #8D8D84; font-style: italic;">% hexa_y</span>
load<span style="color: #707183;">(</span><span style="color: #008000;">'./raw_data/frf_marble_z.mat'</span><span style="color: #707183;">)</span> <span style="color: #8D8D84; font-style: italic;">% ReIm5</span>
frf_marble_z = zeros<span style="color: #707183;">(</span>size<span style="color: #7388D6;">(</span>ReIm5, <span style="color: #D0372D;">1</span><span style="color: #7388D6;">)</span>, <span style="color: #D0372D;">3</span><span style="color: #707183;">)</span>;
frf_marble_z<span style="color: #707183;">(</span><span style="color: #6434A3;">:</span>, <span style="color: #D0372D;">1</span><span style="color: #707183;">)</span> = scale_factor<span style="color: #6434A3;">*</span>ReIm5<span style="color: #707183;">(</span><span style="color: #6434A3;">:</span>, <span style="color: #D0372D;">2</span><span style="color: #707183;">)</span><span style="color: #6434A3;">./</span>w; <span style="color: #8D8D84; font-style: italic;">% marble_z</span>
frf_marble_z<span style="color: #707183;">(</span><span style="color: #6434A3;">:</span>, <span style="color: #D0372D;">2</span><span style="color: #707183;">)</span> = scale_factor<span style="color: #6434A3;">*</span>ReIm5<span style="color: #707183;">(</span><span style="color: #6434A3;">:</span>, <span style="color: #D0372D;">3</span><span style="color: #707183;">)</span><span style="color: #6434A3;">./</span>w; <span style="color: #8D8D84; font-style: italic;">% tilt_z</span>
frf_marble_z<span style="color: #707183;">(</span><span style="color: #6434A3;">:</span>, <span style="color: #D0372D;">3</span><span style="color: #707183;">)</span> = scale_factor<span style="color: #6434A3;">*</span>ReIm5<span style="color: #707183;">(</span><span style="color: #6434A3;">:</span>, <span style="color: #D0372D;">4</span><span style="color: #707183;">)</span><span style="color: #6434A3;">./</span>w; <span style="color: #8D8D84; font-style: italic;">% hexa_z</span>
load<span style="color: #707183;">(</span><span style="color: #008000;">'./raw_data/frf_hexa_z.mat'</span><span style="color: #707183;">)</span> <span style="color: #8D8D84; font-style: italic;">% ReIm6</span>
frf_hexa_z = zeros<span style="color: #707183;">(</span>size<span style="color: #7388D6;">(</span>ReIm6, <span style="color: #D0372D;">1</span><span style="color: #7388D6;">)</span>, <span style="color: #D0372D;">3</span><span style="color: #707183;">)</span>;
frf_hexa_z<span style="color: #707183;">(</span><span style="color: #6434A3;">:</span>, <span style="color: #D0372D;">1</span><span style="color: #707183;">)</span> = scale_factor<span style="color: #6434A3;">*</span>ReIm6<span style="color: #707183;">(</span><span style="color: #6434A3;">:</span>, <span style="color: #D0372D;">2</span><span style="color: #707183;">)</span><span style="color: #6434A3;">./</span>w; <span style="color: #8D8D84; font-style: italic;">% marble_z</span>
frf_hexa_z<span style="color: #707183;">(</span><span style="color: #6434A3;">:</span>, <span style="color: #D0372D;">2</span><span style="color: #707183;">)</span> = scale_factor<span style="color: #6434A3;">*</span>ReIm6<span style="color: #707183;">(</span><span style="color: #6434A3;">:</span>, <span style="color: #D0372D;">3</span><span style="color: #707183;">)</span><span style="color: #6434A3;">./</span>w; <span style="color: #8D8D84; font-style: italic;">% tilt_z</span>
frf_hexa_z<span style="color: #707183;">(</span><span style="color: #6434A3;">:</span>, <span style="color: #D0372D;">3</span><span style="color: #707183;">)</span> = scale_factor<span style="color: #6434A3;">*</span>ReIm6<span style="color: #707183;">(</span><span style="color: #6434A3;">:</span>, <span style="color: #D0372D;">4</span><span style="color: #707183;">)</span><span style="color: #6434A3;">./</span>w; <span style="color: #8D8D84; font-style: italic;">% hexa_z</span>
</pre>
</div>
<div class="org-src-container">
<pre class="src src-matlab">load<span style="color: #707183;">(</span><span style="color: #008000;">'./raw_data/coher_marble_x.mat'</span><span style="color: #707183;">)</span> <span style="color: #8D8D84; font-style: italic;">% coh1</span>
coh_marble_x = zeros<span style="color: #707183;">(</span>size<span style="color: #7388D6;">(</span>coh1, <span style="color: #D0372D;">1</span><span style="color: #7388D6;">)</span>, <span style="color: #D0372D;">3</span><span style="color: #707183;">)</span>;
coh_marble_x<span style="color: #707183;">(</span><span style="color: #6434A3;">:</span>, <span style="color: #D0372D;">1</span><span style="color: #707183;">)</span> = coh1<span style="color: #707183;">(</span><span style="color: #6434A3;">:</span>, <span style="color: #D0372D;">2</span><span style="color: #707183;">)</span>; <span style="color: #8D8D84; font-style: italic;">% marble_x</span>
coh_marble_x<span style="color: #707183;">(</span><span style="color: #6434A3;">:</span>, <span style="color: #D0372D;">2</span><span style="color: #707183;">)</span> = coh1<span style="color: #707183;">(</span><span style="color: #6434A3;">:</span>, <span style="color: #D0372D;">3</span><span style="color: #707183;">)</span>; <span style="color: #8D8D84; font-style: italic;">% tilt_x</span>
coh_marble_x<span style="color: #707183;">(</span><span style="color: #6434A3;">:</span>, <span style="color: #D0372D;">3</span><span style="color: #707183;">)</span> = coh1<span style="color: #707183;">(</span><span style="color: #6434A3;">:</span>, <span style="color: #D0372D;">4</span><span style="color: #707183;">)</span>; <span style="color: #8D8D84; font-style: italic;">% hexa_x</span>
load<span style="color: #707183;">(</span><span style="color: #008000;">'./raw_data/coher_hexa_x.mat'</span><span style="color: #707183;">)</span> <span style="color: #8D8D84; font-style: italic;">% coh2</span>
coh_hexa_x = zeros<span style="color: #707183;">(</span>size<span style="color: #7388D6;">(</span>coh2, <span style="color: #D0372D;">1</span><span style="color: #7388D6;">)</span>, <span style="color: #D0372D;">3</span><span style="color: #707183;">)</span>;
coh_hexa_x<span style="color: #707183;">(</span><span style="color: #6434A3;">:</span>, <span style="color: #D0372D;">1</span><span style="color: #707183;">)</span> = coh2<span style="color: #707183;">(</span><span style="color: #6434A3;">:</span>, <span style="color: #D0372D;">2</span><span style="color: #707183;">)</span>; <span style="color: #8D8D84; font-style: italic;">% marble_x</span>
coh_hexa_x<span style="color: #707183;">(</span><span style="color: #6434A3;">:</span>, <span style="color: #D0372D;">2</span><span style="color: #707183;">)</span> = coh2<span style="color: #707183;">(</span><span style="color: #6434A3;">:</span>, <span style="color: #D0372D;">3</span><span style="color: #707183;">)</span>; <span style="color: #8D8D84; font-style: italic;">% tilt_x</span>
coh_hexa_x<span style="color: #707183;">(</span><span style="color: #6434A3;">:</span>, <span style="color: #D0372D;">3</span><span style="color: #707183;">)</span> = coh2<span style="color: #707183;">(</span><span style="color: #6434A3;">:</span>, <span style="color: #D0372D;">4</span><span style="color: #707183;">)</span>; <span style="color: #8D8D84; font-style: italic;">% hexa_x</span>
load<span style="color: #707183;">(</span><span style="color: #008000;">'./raw_data/coher_marble_y.mat'</span><span style="color: #707183;">)</span> <span style="color: #8D8D84; font-style: italic;">% coh3</span>
coh_marble_y = zeros<span style="color: #707183;">(</span>size<span style="color: #7388D6;">(</span>coh3, <span style="color: #D0372D;">1</span><span style="color: #7388D6;">)</span>, <span style="color: #D0372D;">3</span><span style="color: #707183;">)</span>;
coh_marble_y<span style="color: #707183;">(</span><span style="color: #6434A3;">:</span>, <span style="color: #D0372D;">1</span><span style="color: #707183;">)</span> = coh3<span style="color: #707183;">(</span><span style="color: #6434A3;">:</span>, <span style="color: #D0372D;">2</span><span style="color: #707183;">)</span>; <span style="color: #8D8D84; font-style: italic;">% marble_y</span>
coh_marble_y<span style="color: #707183;">(</span><span style="color: #6434A3;">:</span>, <span style="color: #D0372D;">2</span><span style="color: #707183;">)</span> = coh3<span style="color: #707183;">(</span><span style="color: #6434A3;">:</span>, <span style="color: #D0372D;">3</span><span style="color: #707183;">)</span>; <span style="color: #8D8D84; font-style: italic;">% tilt_y</span>
coh_marble_y<span style="color: #707183;">(</span><span style="color: #6434A3;">:</span>, <span style="color: #D0372D;">3</span><span style="color: #707183;">)</span> = coh3<span style="color: #707183;">(</span><span style="color: #6434A3;">:</span>, <span style="color: #D0372D;">4</span><span style="color: #707183;">)</span>; <span style="color: #8D8D84; font-style: italic;">% hexa_y</span>
load<span style="color: #707183;">(</span><span style="color: #008000;">'./raw_data/coher_hexa_y.mat'</span><span style="color: #707183;">)</span> <span style="color: #8D8D84; font-style: italic;">% coh4</span>
coh_hexa_y = zeros<span style="color: #707183;">(</span>size<span style="color: #7388D6;">(</span>coh4, <span style="color: #D0372D;">1</span><span style="color: #7388D6;">)</span>, <span style="color: #D0372D;">3</span><span style="color: #707183;">)</span>;
coh_hexa_y<span style="color: #707183;">(</span><span style="color: #6434A3;">:</span>, <span style="color: #D0372D;">1</span><span style="color: #707183;">)</span> = coh4<span style="color: #707183;">(</span><span style="color: #6434A3;">:</span>, <span style="color: #D0372D;">2</span><span style="color: #707183;">)</span>; <span style="color: #8D8D84; font-style: italic;">% marble_y</span>
coh_hexa_y<span style="color: #707183;">(</span><span style="color: #6434A3;">:</span>, <span style="color: #D0372D;">2</span><span style="color: #707183;">)</span> = coh4<span style="color: #707183;">(</span><span style="color: #6434A3;">:</span>, <span style="color: #D0372D;">3</span><span style="color: #707183;">)</span>; <span style="color: #8D8D84; font-style: italic;">% tilt_y</span>
coh_hexa_y<span style="color: #707183;">(</span><span style="color: #6434A3;">:</span>, <span style="color: #D0372D;">3</span><span style="color: #707183;">)</span> = coh4<span style="color: #707183;">(</span><span style="color: #6434A3;">:</span>, <span style="color: #D0372D;">4</span><span style="color: #707183;">)</span>; <span style="color: #8D8D84; font-style: italic;">% hexa_y</span>
load<span style="color: #707183;">(</span><span style="color: #008000;">'./raw_data/coher_marble_z.mat'</span><span style="color: #707183;">)</span> <span style="color: #8D8D84; font-style: italic;">% coh5</span>
coh_marble_z = zeros<span style="color: #707183;">(</span>size<span style="color: #7388D6;">(</span>coh5, <span style="color: #D0372D;">1</span><span style="color: #7388D6;">)</span>, <span style="color: #D0372D;">3</span><span style="color: #707183;">)</span>;
coh_marble_z<span style="color: #707183;">(</span><span style="color: #6434A3;">:</span>, <span style="color: #D0372D;">1</span><span style="color: #707183;">)</span> = coh5<span style="color: #707183;">(</span><span style="color: #6434A3;">:</span>, <span style="color: #D0372D;">2</span><span style="color: #707183;">)</span>; <span style="color: #8D8D84; font-style: italic;">% marble_z</span>
coh_marble_z<span style="color: #707183;">(</span><span style="color: #6434A3;">:</span>, <span style="color: #D0372D;">2</span><span style="color: #707183;">)</span> = coh5<span style="color: #707183;">(</span><span style="color: #6434A3;">:</span>, <span style="color: #D0372D;">3</span><span style="color: #707183;">)</span>; <span style="color: #8D8D84; font-style: italic;">% tilt_z</span>
coh_marble_z<span style="color: #707183;">(</span><span style="color: #6434A3;">:</span>, <span style="color: #D0372D;">3</span><span style="color: #707183;">)</span> = coh5<span style="color: #707183;">(</span><span style="color: #6434A3;">:</span>, <span style="color: #D0372D;">4</span><span style="color: #707183;">)</span>; <span style="color: #8D8D84; font-style: italic;">% hexa_z</span>
load<span style="color: #707183;">(</span><span style="color: #008000;">'./raw_data/coher_hexa_z.mat'</span><span style="color: #707183;">)</span> <span style="color: #8D8D84; font-style: italic;">% coh6</span>
coh_hexa_z = zeros<span style="color: #707183;">(</span>size<span style="color: #7388D6;">(</span>coh6, <span style="color: #D0372D;">1</span><span style="color: #7388D6;">)</span>, <span style="color: #D0372D;">3</span><span style="color: #707183;">)</span>;
coh_hexa_z<span style="color: #707183;">(</span><span style="color: #6434A3;">:</span>, <span style="color: #D0372D;">1</span><span style="color: #707183;">)</span> = coh6<span style="color: #707183;">(</span><span style="color: #6434A3;">:</span>, <span style="color: #D0372D;">2</span><span style="color: #707183;">)</span>; <span style="color: #8D8D84; font-style: italic;">% marble_z</span>
coh_hexa_z<span style="color: #707183;">(</span><span style="color: #6434A3;">:</span>, <span style="color: #D0372D;">2</span><span style="color: #707183;">)</span> = coh6<span style="color: #707183;">(</span><span style="color: #6434A3;">:</span>, <span style="color: #D0372D;">3</span><span style="color: #707183;">)</span>; <span style="color: #8D8D84; font-style: italic;">% tilt_z</span>
coh_hexa_z<span style="color: #707183;">(</span><span style="color: #6434A3;">:</span>, <span style="color: #D0372D;">3</span><span style="color: #707183;">)</span> = coh6<span style="color: #707183;">(</span><span style="color: #6434A3;">:</span>, <span style="color: #D0372D;">4</span><span style="color: #707183;">)</span>; <span style="color: #8D8D84; font-style: italic;">% hexa_z</span>
</pre>
</div>
</div>
</div>
<div id="outline-container-org9a80753" class="outline-3">
<h3 id="org9a80753"><span class="section-number-3">5.2</span> X-direction FRF</h3>
<div class="outline-text-3" id="text-5-2">
<div id="orge2e6756" class="figure">
<p><img src="figs/marble_x_frf.png" alt="marble_x_frf.png" />
</p>
<p><span class="figure-number">Figure 1: </span>Response to a force applied on the marble in the X direction</p>
</div>
<div id="org8981d2a" class="figure">
<p><img src="figs/hexa_x_frf.png" alt="hexa_x_frf.png" />
</p>
<p><span class="figure-number">Figure 2: </span>Response to a force applied on the hexa in the X direction</p>
</div>
</div>
</div>
<div id="outline-container-org9f734e8" class="outline-3">
<h3 id="org9f734e8"><span class="section-number-3">5.3</span> Y-direction FRF</h3>
<div class="outline-text-3" id="text-5-3">
<div id="orgeaeb2a7" class="figure">
<p><img src="figs/marble_y_frf.png" alt="marble_y_frf.png" />
</p>
<p><span class="figure-number">Figure 3: </span>Response to a force applied on the marble in the Y direction</p>
</div>
<div id="orgfd72e3a" class="figure">
<p><img src="figs/hexa_y_frf.png" alt="hexa_y_frf.png" />
</p>
<p><span class="figure-number">Figure 4: </span>Response to a force applied on the hexa in the Y direction</p>
</div>
</div>
</div>
<div id="outline-container-org3ac5c7f" class="outline-3">
<h3 id="org3ac5c7f"><span class="section-number-3">5.4</span> Z-direction FRF</h3>
<div class="outline-text-3" id="text-5-4">
<div id="org8dc8fda" class="figure">
<p><img src="figs/marble_z_frf.png" alt="marble_z_frf.png" />
</p>
<p><span class="figure-number">Figure 5: </span>Response to a force applied on the marble in the Z direction</p>
</div>
<div id="org051aab0" class="figure">
<p><img src="figs/hexa_z_frf.png" alt="hexa_z_frf.png" />
</p>
<p><span class="figure-number">Figure 6: </span>Response to a force applied on the hexa in the Z direction</p>
</div>
</div>
</div>
</div>
</div>
<div id="postamble" class="status">
<p class="author">Author: Thomas Dehaeze</p>
<p class="date">Created: 2019-03-14 jeu. 11:54</p>
<p class="validation"><a href="http://validator.w3.org/check?uri=referer">Validate</a></p>
</div>
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