Modal Shape Visualization Employing FP + 2D-DIC and Phased-Based Motion Magnification

Modal Shape Visualization Employing FP + 2D-DIC and Phased-Based Motion Magnification

Blog Article

Recently, the combination of Fringe Projection (FP) and 2D Digital Image Correlation (2D-DIC) has become a low-cost alternative for measuring deformations even in dynamic events moen finney such as vibration testing.FP and DIC are displacement measurement techniques, so high frequency vibration tests associated with low levels of displacement suppose a challenge.By means of Phase-Based Motion Magnification algorithm (PBMM), the periodic displacement observed in an image sequence can be magnified.This makes it possible to measure clear displacement maps by FP + 2D-DIC even when subtle displacement occurs.This methodology allows a better interpretation of the vibration behavior of mechanical components.

In this work, the behavior of a here beam excited at its natural frequencies has been studied, showing the potential of PBMM and FP + 2D-DIC.