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      <title>Tire Envelope Wizard - Object Definition</title>
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      <div class="title_topic2" id="xps10_pagetitle">Tire Envelope Wizard - Object Definition</div>
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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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               <p class="para_td"> <a class="links" href="javascript:void(0)" onclick="top.openFile('vehiclepkg/tirenv_wiz_steps.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 Object Definition step lets you define the shape that is moving in the simulation. You can specify a sheet, one or more solids or a tire profile.</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);">Object Definition Step</a> in the Tire Envelope wizard procedures.
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               <p class="para_th">Tire Envelope Wizard - Object Definition</p>
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               <p class="para_td">What is the format of the tire definition?</p>
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               <p class="para_th">Sheet/Solid/Solids</p>
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               <p class="para_td">Choose this option if you want to use a sheet, solid, or solids to define the tire shape. Select the objects that define the tire shape that is moving along a path.</p>
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               <p class="para_th">2D Tire Profile</p>
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               <p class="para_td">Choose this option to select a profile directly from the current part file, or you can choose a sketch from a different part file. A WAVE link is made to this sketch.</p>
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      </table><br><div class="title_division">Sheet/Solid/Solids Options</div>
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               <p class="para_th">Sheet/Solid/Solids Options</p>
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               <p class="para_th">Descriptions</p>
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               <p class="para_td">Specify CSYS</p>
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               <p class="para_td">Define a CSYS around which to reposition the object at each orientation (Motion Path step). The CSYS Constructor tool dialog displays. Since the tire is symmetric, only the XC axis and origin are important. </p>
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               <p class="para_td">Wheel Centerline Shift</p>
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               <p class="para_td">The wheel centerline shift indicates the change in wheel offset from the hub face to the wheel centerline. Enter a positive value to shift the tire outboard, away from the vehicle, and a negative value to shift the tire inboard, towards the vehicle.</p>
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      </table><br><div class="title_division">2D Tire Profile Options</div>
      <p class="para_division">The Wheel Options page lets you define the wheel options for the shape. This page displays if you select the 2D Tire profile option on the Object Definition page, complete the tire profile page, and then click Next. </p>
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               <p class="para_th">2D Tire Profile Options</p>
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               <p class="para_th">Descriptions</p>
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               <p class="para_td">Rim Diameter</p>
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               <p align="center"><img align="bottom" src="graphics/tirenv_wiz_wheel_rim.gif"></p>
               <p class="para_td">The sketch will be translated one-half the Rim Diameter in the +Y direction to get the top of the tire (see the figure above).</p>
               <p class="para_td">RR stands for rim radius.</p>
               <p class="para_td">By default Custom is displayed and a Rim Diameter must be specified. &nbsp;</p>
               <p class="para_td">If the list of standard sizes follows what is defined in ug_chassisdes.def they will be calculated as shown below:</p>
               <p class="para_td">TIRE_standard_names_: &nbsp;15 IN; 16 IN; Car 320</p>
               <p class="para_td">The standard rim sizes are: 13, 14, 15, 15, 16, 17, 18, 19, and 20 inches (corresponds in metric to: 329.4, 354.8, 380.2, 405.6, 436.6, 462.0, 487.4, 512.8 mm).</p>
               <p class="para_td">In addition to Custom, 15 IN 16 IN and Car 320 can be chosen. The Rim Diameter value is insensitive if anything other then Custom is chosen.</p>
               <p class="para_td">The Rim Diameter must be positive.</p>
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               <p class="para_td">Mirror Profile about Centerline (+Y)</p>
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               <p class="para_td">If the sketch is only half the tire profile, then the sketch must have an endpoint on the +Y axis. Then this option will mirror the shape to get the complete tire shape. If the sketch is that of the full tire shape, then do not use this mirror option.</p>
               <p class="para_td">If the Mirror Profile about Centerline is used:</p>
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                     <p class="para_item">The Profile must begin on YC axis of the sketch.</p>
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                     <p class="para_item">The Profile must be in the XC - YC plane of the sketch.</p>
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                     <p class="para_item">The Profile should not intersect the YC axis of the sketch more than once.</p>
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               <p class="para_td">Wheel Centerline Shift</p>
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               <p class="para_td">The wheel centerline shift indicates the change in wheel offset from the hub face to the wheel centerline. Enter a positive value to shift the tire outboard, away from the vehicle, and a negative value to shift the tire inboard, towards the vehicle.</p>
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