topic Re: Universal Joint Mechanism in Analysis https://www.ptcusercommunity.com/t5/Analysis/Universal-Joint-Mechanism/m-p/17398#M4141 <HTML><HEAD></HEAD><BODY><P>It shouldn't be that difficult.</P><P></P><P>Dan, is this a challenge or a request?</P></BODY></HTML> Fri, 04 Apr 2014 19:25:16 GMT TomD.inPDX 2014-04-04T19:25:16Z Universal Joint Mechanism https://www.ptcusercommunity.com/t5/Analysis/Universal-Joint-Mechanism/m-p/17396#M4139 Can any PTC Creo users recreate this joint?&lt;click on image to zoom&gt;&lt;see attachment for animation&gt; Sun, 13 Dec 2020 15:21:37 GMT https://www.ptcusercommunity.com/t5/Analysis/Universal-Joint-Mechanism/m-p/17396#M4139 DanMarotta 2020-12-13T15:21:37Z Re: Universal Joint Mechanism https://www.ptcusercommunity.com/t5/Analysis/Universal-Joint-Mechanism/m-p/17397#M4140 <HTML><HEAD></HEAD><BODY><P>Dan! Awesome to hear from you, love the attached annimation. <SPAN style="font-size: 10pt;">Hopefully our PTC Creo heroes can lend a hand.</SPAN></P></BODY></HTML> Fri, 04 Apr 2014 19:14:30 GMT https://www.ptcusercommunity.com/t5/Analysis/Universal-Joint-Mechanism/m-p/17397#M4140 ryankelley 2014-04-04T19:14:30Z Re: Universal Joint Mechanism https://www.ptcusercommunity.com/t5/Analysis/Universal-Joint-Mechanism/m-p/17398#M4141 <HTML><HEAD></HEAD><BODY><P>It shouldn't be that difficult.</P><P></P><P>Dan, is this a challenge or a request?</P></BODY></HTML> Fri, 04 Apr 2014 19:25:16 GMT https://www.ptcusercommunity.com/t5/Analysis/Universal-Joint-Mechanism/m-p/17398#M4141 TomD.inPDX 2014-04-04T19:25:16Z Re: Universal Joint Mechanism https://www.ptcusercommunity.com/t5/Analysis/Universal-Joint-Mechanism/m-p/17399#M4142 <HTML><HEAD></HEAD><BODY><P>Just for fun. I was mesmerized by the animation. What kind of application would this joint be useful for?</P></BODY></HTML> Fri, 04 Apr 2014 20:18:41 GMT https://www.ptcusercommunity.com/t5/Analysis/Universal-Joint-Mechanism/m-p/17399#M4142 DanMarotta 2014-04-04T20:18:41Z Re: Universal Joint Mechanism https://www.ptcusercommunity.com/t5/Analysis/Universal-Joint-Mechanism/m-p/17400#M4143 <HTML><HEAD></HEAD><BODY><P>Dan,</P><P></P><P>This is a sample a put together many, many years ago.</P><P>Enjoy,</P><P>Tim</P><P></P><P></P><P><IMG __jive_id="70690" alt="Mobius-creo-u-joint.PNG" class="jive-image-thumbnail jive-image" src="https://community.ptc.com/legacyfs/online/70690_Mobius-creo-u-joint.PNG" width="450" /></P><P><A href="https://www.ptcusercommunity.com/videos/4872"> Video Link : 4872 </A></P></BODY></HTML> Fri, 04 Apr 2014 21:14:57 GMT https://www.ptcusercommunity.com/t5/Analysis/Universal-Joint-Mechanism/m-p/17400#M4143 TimMcLellan 2014-04-04T21:14:57Z Re: Universal Joint Mechanism https://www.ptcusercommunity.com/t5/Analysis/Universal-Joint-Mechanism/m-p/17401#M4144 <HTML><HEAD></HEAD><BODY><P>Dan, this is what makes most cars run... it is a universal joint. Steering columns have them and drive-shafts (except the front wheel drive units) use them. The interesting thing about them is the periodicity in the rotation so they are normally used in pairs to counteract that artifact.</P></BODY></HTML> Fri, 04 Apr 2014 21:51:05 GMT https://www.ptcusercommunity.com/t5/Analysis/Universal-Joint-Mechanism/m-p/17401#M4144 TomD.inPDX 2014-04-04T21:51:05Z Re: Universal Joint Mechanism https://www.ptcusercommunity.com/t5/Analysis/Universal-Joint-Mechanism/m-p/17402#M4145 <HTML><HEAD></HEAD><BODY><P>Nice one</P></BODY></HTML> Sat, 05 Apr 2014 08:42:05 GMT https://www.ptcusercommunity.com/t5/Analysis/Universal-Joint-Mechanism/m-p/17402#M4145 jsarkar 2014-04-05T08:42:05Z Re: Universal Joint Mechanism https://www.ptcusercommunity.com/t5/Analysis/Universal-Joint-Mechanism/m-p/17403#M4146 <HTML><HEAD></HEAD><BODY><P>Nice to see you back on here Dan.</P></BODY></HTML> Sat, 05 Apr 2014 10:05:54 GMT https://www.ptcusercommunity.com/t5/Analysis/Universal-Joint-Mechanism/m-p/17403#M4146 MikeArmstrong 2014-04-05T10:05:54Z Re: Universal Joint Mechanism https://www.ptcusercommunity.com/t5/Analysis/Universal-Joint-Mechanism/m-p/17404#M4147 <HTML><HEAD></HEAD><BODY><P>Here is a "constant Velocity" application where the periodicity is counteracted. This is only for illustrative purposes, of course but this is how Chevy 4WD has managed a high angle driveline without tearing itself apart (although some would argue that view). The idea is that you can put a double U-joint in a single casting and have the input and the output be exactly the same. </P><P></P><P><A href="https://www.ptcusercommunity.com/videos/4875"> Video Link : 4875 </A></P><P></P><P>Yes, you can also exaggerate the action by changing the synchronicity of the 2 joints... changing their phase.</P><P></P><P><A href="https://www.ptcusercommunity.com/videos/4876"> Video Link : 4876 </A></P><P></P><P>This has been a controversial implementation for a long time now:</P><P></P><P> <IMG __jive_id="70743" class="jive-image-thumbnail jive-image" onclick="" alt="u_joint_bike_steering.PNG" src="https://community.ptc.com/legacyfs/online/70743_u_joint_bike_steering.PNG" width="450" /></P></BODY></HTML> Sun, 06 Apr 2014 02:20:49 GMT https://www.ptcusercommunity.com/t5/Analysis/Universal-Joint-Mechanism/m-p/17404#M4147 TomD.inPDX 2014-04-06T02:20:49Z Re: Universal Joint Mechanism https://www.ptcusercommunity.com/t5/Analysis/Universal-Joint-Mechanism/m-p/17405#M4148 <HTML><HEAD></HEAD><BODY><P>Thanks, Mike. It's good to be seen.</P></BODY></HTML> Sun, 06 Apr 2014 14:07:44 GMT https://www.ptcusercommunity.com/t5/Analysis/Universal-Joint-Mechanism/m-p/17405#M4148 DanMarotta 2014-04-06T14:07:44Z