Volume 4 Issue 1

Wave Approach for Calculation of Natural Frequencies and Mode Shapes in a Waveguides with Discrete Damping

Authors: M. Naseri-kondeloo; M. Nikkhah-Bahrami

Abstract: In many practical applications, continuous systems may interact with discrete damping elements. For example, discrete damping elements are routinely attached to structures for vibration control. In this article, wave propagation method is applied for the calculation of frequencies and mode shapes for one-dimensional waveguides with a discrete damping.

Keywords: Wave Propagation; Reflection; Damping; Natural Frequencies; Mode Shapes

Doi:

Download Full Paper

The Universal Speed Limit as an Attribute of the Space-Time Symmetry

Authors: Michael Petelin

Abstract: Relativistic kinematic effects are deduced immediately from the space-time symmetry.

Keywords: Inertial Frames; Unitary Space-Time Scale; Reciprocity; Speed Limit

Doi:

Download Full Paper