http://www.FEA-Forums.com/ FEA Forums » Topic: Modal analysis of Tractor Semi trailer (2D model) en Tue, 07 Feb 2012 22:58:46 +0000 http://www.FEA-Forums.com/topic/40#post-50 Fri, 25 Apr 2008 06:06:53 +0000 Arthanareeswaran 50@http://www.FEA-Forums.com/ <p>Hai</p> <p>I have used MPC 184 element in Ansys to model the hinge between tractor and trailer. But when I perform modal analysis, it results with frequency of zero and mode shapes are in z direction. </p> <p>I have used beam3, combin14 (uy direction) and mass element.</p> <p>Pl suggest me how to model the system. </p>