We propose and validate a new architecture for wide-band vibration-based MPGs. This architecture replaces a linear oscillator with a piecewise-linear oscillator as a vibrations harvesting element. Analytical, numerical, and experimental techniques are used to analyze a prototype of an electromagnetic MPG designed and constructed using the new architecture. The new architecture increases the bandwidth of the MPG during an up-sweep compared to a traditional MPG, while maintaining the same bandwidth in a down-sweep. Closed-form expressions for the response of the piecewise-linear MPG as well as the size of the up-sweep bandwidth are presented and validated experimentally. Simulations show that under a random-frequency base excitations new architecture collects more energy collected by the traditional architecture.

This content is only available via PDF.
You do not currently have access to this content.