展開型膜面構造物を対象とした格子投影法による全視野形状計測システムの構築

抄録

A deployable membrane structure has been attractive attention to realize an ultra-lightweight structure in space. However, since the membrane is a flexible structure component, vibration easily occurs due to an external force such as an impulse force right after deployment. A membrane vibration affects operation function of the structure. Thus, it is important to understand its nonlinear membrane vibration behavior to improve the reliability of membrane structure. In this study, a full-field surface shape measurement system using grating projection method was newly constructed in order to capture a nonlinear membrane behavior with high-spatial resolution. Through the surface shape measurement of the vibration behaviors of the deployable membrane model, the effectiveness of the constructed measurement system is introduced for measuring the flexible membrane vibration behavior.