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      <title>Tire Envelope Wizard - Motion Path - Existing Scenario Motion Model</title>
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      <div class="title_topic3" id="xps10_pagetitle">Tire Envelope Wizard - Motion Path -  Existing Scenario Motion Model</div>
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      <p align="center"><img align="bottom" src="graphics/exist_scen_mot_modl.gif"></p>
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               <p class="para_td"> <a class="links" href="javascript:void(0)" onclick="top.openFile('vehiclepkg/tirenv_wiz.html');return(false);">Tire Envelope Wizard</a></p>
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            <td bgcolor="#f4f4f4" colspan="1" rowspan="1" width="33%">
               <p class="para_td"> <a class="links" href="javascript:void(0)" onclick="top.openFile('vehiclepkg/tirenv_wiz_motion.html');return(false);">Page Steps</a></p>
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               <p class="para_td"> <a class="links" href="javascript:void(0)" onclick="top.openFile('vehiclepkg/tirenv_wiz_proc.html');return(false);">Procedures</a></p>
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      </table><br><p class="para_topic">The Existing Scenario Motion Model option for the Motion Path step lets you select scenario models for the motion of the tire.</p>
      <p class="para_topic">For this option to be available you must have a Motion License, and you must have opened a master model part for which scenario part files exist. The wizard then displays a page from which you can select an available scenario part file. </p>
      <p class="para_topic">Selecting a scenario part file opens the NX Motion application.</p>
      <p class="para_topic">Clicking Next on the wizard then takes you to a page where you can select a line to represent the spindle axis. You then can go on to specify the scenario driver ranges.</p>
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            <p class="para_item">For procedures for this step, see the  <a class="links" href="javascript:void(0)" onclick="top.openFile('vehiclepkg/tirenv_wiz_proc.html');return(false);">Motion Path for Existing Scenario Step</a> in the Tire Envelope wizard procedures.
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               <p class="para_th">Tire Envelope Wizard - Scenario Model Driver Ranges</p>
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               <p class="para_td">Scenario Part File</p>
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               <p class="para_td">Lets you choose a scenario model to describe the motion of the static tire. The NX Motion application is started.</p>
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               <p class="para_td">Spindle Axis</p>
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               <p class="para_td">Lets you select a line to represent the spindle axis.</p>
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               <p class="para_td">Drivers X&rarr;Y</p>
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               <p class="para_td">Changes the Steering and Jounce/Rebound drivers . If Steering is currently the X axis, it changes to Y axis. If Jounce/Rebound is the Y axis it becomes the X axis.</p>
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               <p class="para_td">Lower Limit,Upper Limit</p>
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               <p class="para_td">These are the limit displacements for each driver. For example, if one of the drivers is for steering, a lower and upper range might be -50.0mm and 50.0mm</p>
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               <p class="para_td">Number of Steps</p>
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               <p class="para_td">Number of reference locations to use for this range. &nbsp;This is used to compute the step size.</p>
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               <p class="para_td">Driver Graph &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</p>
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               <p class="para_th">The default graph shape for the two drivers is a rectangle. The following graph shapes are supported.</p>
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                        <p class="para_th">Graph</p>
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                        <p class="para_th">Description</p>
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                        <p align="center"><img align="bottom" src="graphics/dr_graph_1.gif"></p>
                        <p class="para_td">Graph 1</p>
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                        <p class="para_td">Articulations are based on a rectangular function using the upper and lower limits for steering and jounce/rebound.</p>
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                        <p class="para_td"> <img align="bottom" src="graphics/dr_graph_2.gif" border="0">  
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                        <p class="para_td">Graph 2</p>
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                        <p class="para_td">Same as graph one above, but articulation displacements will now be tapered starting at a percentage value for the Y axis.</p>
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                        <p align="center"><img align="bottom" src="graphics/dr_graph_3.gif"></p>
                        <p class="para_td">Graph 3</p>
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                        <p class="para_td">Same as graph two above, except tapering is performed along the X axis.</p>
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                        <p align="center"><img align="bottom" src="graphics/dr_graph_4.gif"></p>
                        <p class="para_td">Graph 4</p>
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                        <p class="para_td">This driver graph tapers only on one side of the axis.</p>
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                        <p align="center"><img align="bottom" src="graphics/dr_graph_5.gif"></p>
                        <p class="para_td">Graph 5</p>
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                        <p class="para_td">A sketch must be specified to define the custom shape that controls the driver values. The local coordinate systems of the sketch controls the displacements used in articulation.</p>
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                        <p align="center"><img align="bottom" src="graphics/dr_graph_6.gif"></p>
                        <p class="para_td">Graph 6</p>
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                        <p class="para_td">This is a special case of driver graph #1. It is still a driver graph using two drivers. However, one of the two drivers is fixed in the driver range while the other driver is active.</p>
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