In a previous work, we demonstrated the propulsive force produced by controllable traveling mechanical waves in a thin plastic sheet suspended in air above a flat surface, thus confirming the physical basis for a 'flying' carpet near a horizontal surface. Here, we discuss the fundamental and experimental conditions for realizing such a demonstration. We first present the theory motivating our work and use it to determine the range of experimental conditions most likely to produce a forward propulsive force. We then present a detailed description of the experimental approach to produce the traveling waves, including integrated piezoelectric actuators and sensors to provide feedback control, artifact elimination, and power considerations.
All Science Journal Classification (ASJC) codes
- Mechanical Engineering
- Electrical and Electronic Engineering
- feedback systems
- flexible structures
- multisensor systems
- piezoelectric devices