Abstract
The minimum stiffness of a simple (or point) support that raises a natural frequency of a beam to its upper limit is investigated for different boundary conditions. The approach produces the closed-form solution for the minimum stiffness based on the derivative of a natural frequency with respect to the support position. It is seen that when an intermediate elastic support is positioned properly the effect is similar to a rigid support. The solution process also provides insight into the dynamics of a beam with an intermediate support for more general boundary conditions. The resulting solutions can be used to guide the practical design of a support.
| Translated title of the contribution | Maximising the natural frequency of a beam with an intermediate elastic support |
|---|---|
| Original language | English |
| Pages (from-to) | 1229 - 1238 |
| Number of pages | 10 |
| Journal | Journal of Sound and Vibration |
| Volume | 291(3-5) |
| DOIs | |
| Publication status | Published - Apr 2006 |