http://www.FEA-Forums.com/ FEA Forums » Tag: design - Recent Posts en Tue, 07 Feb 2012 23:54:34 +0000 http://www.FEA-Forums.com/topic/411#post-524 Mon, 23 Jan 2012 15:33:29 +0000 allanwood 524@http://www.FEA-Forums.com/ <p>Hello, I hoped to announce the release of VABS 3.6 by AnalySwift for modeling complex composite beam structures, such as wind turbine blades, helicopter rotor blades, high aspect ratio wings, and composite bridges.</p> <p>The main feature of the VABS 3.6 is the improved method of optimizing the finite element mesh. Compared to the previous version, VABS 3.6 is several times faster for large problems, and the slower I/O (Input/Output) performance reported by some users was corrected. Furthermore, VABS 3.6 can handle much larger models, which cannot be analyzed by previous versions.</p> <p>For a realistic blade meshed with 200,000 degrees of freedom (DOFs), using a typical laptop, VABS 3.6 takes less than 20 seconds for constitutive modeling (Timoshenko model), while VABS 3.5 takes about 4 minutes for constitutive modeling. Of course, if one uses DLLs (Dynamic Link Libraries), it will be even faster as a significant portion of time for large problems is spend by I/O with hard drives. </p> <p>Briefly, about VABS: VABS is the only tool capable of rigorously modeling three-dimensional (3D) slender solids with complex buildup structures, such as composite wind turbine blades. The efficient high-fidelity tools offered through AnalySwift enable companies to bring products to market more quickly and at a lower cost with the best available compromise of accuracy, efficiency, and versatility.</p> <p>The unique technology underlying VABS renders it the first truly efficient high-fidelity modeling tool for composite beams, saving users many orders of magnitude in computing time relative to 3D finite element analyses (FEA), without a loss of accuracy. Engineers can confidently design and analyze real structures with complex internal construction due to this unique efficient high-fidelity feature of VABS. For instance, structures as complex as real composite rotor blades with hundreds of layers can be easily handled by a laptop computer. I hope this is of interest. </p> http://www.FEA-Forums.com/topic/81#post-103 Tue, 07 Apr 2009 13:29:35 +0000 DannyMaher 103@http://www.FEA-Forums.com/ <p>I was wondering if anyone has some insight on how to take into account a value of 5% strucutral damping in ANSYS to assess fatigue damage. I am new to the program, and do not know how to use batch files or the command prompts yet, I use the GUI. Any hlep would be much appreciated. Thanks<br /> -Dan </p> http://www.FEA-Forums.com/topic/41#post-51 Fri, 25 Apr 2008 15:14:31 +0000 NEiNastran 51@http://www.FEA-Forums.com/ <p>To watch an excellent demonstration of NEi Software's newest product, NEi Fusion please visit nastran.tv. </p>