An Investigation in Structural Shape Morphing by Modulus Variation

摘要: This work addresses structural shape morphing, defined as change of due to modulus manipulation. The goal is incorporate variable-modulus materials into a structure, and utilize the controllable enhance ability morph structure with limited actuator numbers, locations, force levels desired shapes that could not be achieved in native structure. A significant portion demonstrate capability proposed strategy broaden space achievable within elastic range. In order quantify morphed shapes, specific planar boundary condition used model. focus this study temporal material’s phase or structure’s shape, but rather resulting applied force. The problem inverse morphing thoroughly investigated; is, finding spatial distribution values actuation forces produce minimize error cost function. Genetic algorithm solve problem. Finally, numerical an arbitrary proposed. algorithm, computational programs are interchangeably build model problem. As case study, practical device selected, drawn from hydrokinetic energy harvesting application, 2D created. manipulation numerically investigated. At end, path-dependency sequential has been explored mass-spring well example