Self-contained Thin Multilayer Setback Piezo Gener

The objective of this proposal is to demonstrate the feasibility of an innovative thin-multilayer setback piezoelectric generator (TM-SPG) to provide inertial harvested power for spin stabilized small-and-medium-caliber fuzing. The novel setback generator uses the characteristics of piezoelectric materials to harvest the firing acceleration. The unit will be manufactured using advanced thin-layer multilayer tape-casting production to deliver a high capacitance, low voltage, powerful and compact power source. The novel generator will be integrated in a housing containing the piezoelectric active material, the setback mass and output pins for easy modular connection with the fuze electronics. Phase I will demonstrate the feasibility and benefits of the novel TM-SPG technology. Proof of the concept models will show, through practical evaluation and through use of both physical based calculations and coupled-physics based finite element analyses (FEA), the potential energy density levels achievable. Phase II is to deliver a robust, design optimized, TM-SPG using the specific Army fuze requirements for 25mm to 40mm caliber ammunition. Safety will be demonstrated by testing the unit under the MIL-STD-331 requirements.