The Analysis of thermomechanical periodic motions of a drinking bird

Uechi, Schun*; Uechi, Hiroshi*; Nishimura, Akihiko  

A water drinking bird is discussed in terms of a thermomechanical model. A mathematical expression of motion derived from the thermomechanical model of a drinking bird and numerical solutions are explicitly shown, which is helpful in understanding physical meanings and fundamental difference between mechanical and thermomechanical periodic motion. The mathematical and physical differences between mechanical and thermomechanical periodic motion. The process of a drinking bird motion could be applied to energy harvesting technology by way of the current modeling.