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<table border="0" cellpadding="3" cellspacing="1" width="100%" class="forumline"> <tr> <th class="thCornerL" width="22%" height="26">Autor</th> <th class="thCornerR">Wiadomość</th> </tr> <tr> <td width="22%" align="left" valign="top" class="row1"><span class="name"><a name=""></a><b>loiwtjsf</b></span></td> <td class="row1" height="28" valign="top"><table width="100%" border="0" cellspacing="0" cellpadding="0"> <tr> <td width="100%"><img src="http://picsrv.fora.pl/subSilver/images/icon_minipost.gif" width="12" height="9" alt="Post" title="Post" border="0" /><span class="postdetails">Wysłany: Sob 23:14, 07 Maj 2011<span class="gen"> </span> Temat postu: abercrombie et fitch Radar antenna axis dynamic re</span></td> </tr> <tr> <td colspan="2"><hr /></td> </tr> <tr> <td colspan="2"><span class="postbody">Radar antenna axis dynamic response of mechanical systems <br /> <br /> <br />By 25m / s the role of uniform wind speed (wind direction change),<a href="http://www.abercrombiefrances.com" target="_blank" class="postlink">Abercrombie France</a>, is calculated to maintain uniform rotation per minute for 6 weeks required for the antenna array of driving torque and the displacement of the surface point A (given in the form of curves) taking into account the stiffness of a better antenna base and minimize the computation, one revolution of the antenna is divided into 50 intervals, the total number of 575 nodes, plates, a total of 1088 beam elements. Calculated using the above method 2O seconds before the results will be converted to the displacement A coordinate system, and then calculating the data plotted curve shown in Figure 3, Figure 4 (Figure 3 is a magnification of 500 times the deformation after the superposition of rigid body displacement result, because A point of rotation radius 3.5m, elastic deformation (mm level) is too small compared with the rigid displacement, Figure 4 is also the speed, acceleration amplitude 500 times put too much on behalf of equation (7) after the drawn curve). Enormous amount of computation in this case,<a href="http://www.mulberrytaskeroutlet.com" target="_blank" class="postlink">alexa mulberry taske</a>, the Pentium 100 with dozens of hours of operation. Figure 2 diagrams a certain type of antenna selection Lei Li Pu, etc. Phase 1: Single radar antenna mechanical system dynamic response 1O5l / B 3-point displacement curve of Figure 4,<a href="http://www.christianlouboutinskodk.com" target="_blank" class="postlink">christian louboutin sko</a>, torque curve results obtained by the appropriate pre-antenna (1 soft body), Antenna (0 soft body) of the modal matrix (just take the first few vibration modes), then the modal coordinates,<a href="http://www.abercrombiefrances.com" target="_blank" class="postlink">abercrombie et fitch</a>, the order of differential equations can be greatly reduced, greatly improving efficiency,<a href="http://www.mulberrytaskeroutlet.com" target="_blank" class="postlink">mulberry tasker</a>, but for the rotation of the antenna , how to get additional boundary condition modes? So get the proper pre-shapes is a difficult problem. Hong-chu reference oscillator. Multibody System Dynamics - Theory, method and applications. Shanghai: Shanghai Jiaotong University, 1993 CENTRAL SOUTH HIGHWAY. Principle and Application of finite element even. Beijing: China Water Power Press, 1979WittenbergJ. Automatieconstructionofnonlinearequationsofmotionforsystemswithmanydegreesoffreedom. Euromech38Colloquium. LouvainLaNeuveBeilium a 3-5, September1973Ossenberg. Franzes. Equationofmotionofmultiplebodysystemswithtranslationalandrotationalde-greesoffreedom. Euromech38Colloquium. LouvainLaNeuve. Belgium ,3-5September, 1973DynamicResponseofSingle-ShaftRadarAntennaMechanicalSystemLiP (DepartmentofMechanicalEngineering, SoutheastUniversityNanjing, 210096) HuaMuh'ng (The14thResearchInstituteoftheElectronicIndustryMinistryNanjing, 210013) AbstractThesingle-shaftradarantennaisamechanicalsystemoftwoflexiblebodies. Basedonthelagrangeequationandthefiniteelementapproach, thedynamicequationoftheantennaisestablished. Fromthepracticalconsideration, theequationsandthecalculationmethodarepresentedwhentheantennarota-tionsperminuteisconstant. Theantennamotortorqueanddisplacementresponsesaregivenwhenthevelocityofwindis20m. Keywords: radarantennas ~ dynamics; responses {thefiniteelementmethod first author Li Pu M, MA, September 1971 students. <br /> <br />相关的主题文章： <br /> <br /> <br /> <a href="http://loonjlze.tradea.org/114231/ropa+ed+hardy+Common+printing+and+packaging+equipm.html" target="_blank" class="postlink">ropa ed hardy Common printing and packaging equipm</a> <br /> <br /> <a href="http://www.bewet.fora.pl/konkursy,25/mac-cosmetics-wholesale-founder-another-breakthrou,51965.html#52885" target="_blank" class="postlink">abercrombie günstig Founder another breakthrough</a> <br /> <br /> <a href="http://www.suzukibandit.fora.pl/info,1/abercrombie-france-personalized-packaging-color-an,93366.html#93710" target="_blank" class="postlink">franklin and marshall sale Personalized Packaging</a></span></td> </tr> </table></td> </tr> <tr> <td colspan="2" height="1" class="spaceRow"><img src="http://picsrv.fora.pl/subSilver/images/spacer.gif" alt="" width="1" height="1" /></td> </tr> </table>
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