Abstract
A vibrating membrane behavior induced by an impact loading is measured by photogrammetry using a grating projection method, and a spatial distribution characteristic of the displacement spectrum magnitude on the vibrating membrane surface is investigated. Three membrane models, which are a flat membrane model, a wrinkled membrane model and a miura-ori membrane model, are treated. The results show that the spatial distribution of the logarithmic magnitude of the spectra on the vibrating membrane surface has a similar distribution characteristic regardless of the existence of wrinkles and creases, while the vibration characteristics, which are a flexural wave propagation and a natural frequency, are sensitive to the membrane surface features.
