Finite

I didn't finish the previous post because I felt like needed to study more about mechanical vibration. In fact, it's still obviously not perfect, but I'm going to use what I've learned, so there will be some errors. In the previous post, I mistakenly wrote the formula for the first natural frequency as a circle. First natural frequency formula for beam is where $L$ is length, $E$ is young's modu..

In the previous post, I used HyperMesh to perform buckling analyses, calculate analytic solutions, and compare them. In this post, I'll use COMSOL to solve the same problem. I'm actually more familiar with HyperMesh than COMSOL, so my method may not be correct and there may be a better way. I use COMSOL Multiphysics 6.0 version Run COMSOL - 2D - Beam - Add - Study Preset Studies for Selected Phy..

This example is also cantilever beam. but it use COMSOL Multiphysics (6.0 version) Run COMSOL - 2D - Beam (beam) - Add - Study General Studies - Stationary - Done Set Unit System : None Right-click the Geometry - More Primitives - Polygon Start point : (0, 0) End point : (120, 0) Linear Elastic Material Young's modulus : 29e6 ∵29e3 ksi = 29e6 psi = 29e6 lb/in^2 Poisson's ratio : 0 Density : 0 Cr..