Congratulations to our engineers Matt Jorgensen and Brian Amato on their successfully funded SBIR proposal for a research project to address IM requirements for rocket motors for the US Navy. Multiple approaches exist for actively responding to thermal stimuli, which incorporate mechanical, chemical, and electrically controlled systems. An existing technology for mitigating such an event is the Thermally Initiated Venting System (TIVS). A TIVS consists of a thermal sensor, trigger, out-of-line blocking device, initiator, transfer energetic, and a linear shaped charge. The TIVS objective is to reduce reaction violence during unintended thermal stimulus by scoring the case of the rocket motor, but not penetrating the case and igniting the propellant. The TIVS trigger is intended to function when the motor is placed in extreme temperature conditions that cause the motor to cook-off, both with slow heating rates (e.g., Slow Cook-off or “SCO”) and fast heating rates (e.g., Fast Cook-off or “FCO”).
The Navy desires to expand functionality of the current TIVS by integrating an electronic circuit with thermal sensors to act as a safety-critical device that controls the initiation of energetic materials. This design would increase the flexibility of the application, enabling its use in multiple systems while also increasing their safety and reliability. The proposed Electronic Thermally Initiated Venting Systems (ETIVS) would consist of a high temperature mixed signal integrated circuit design, suitable for implementation as the trigger and thermal sensor and replacing existing out-of-line devices on current and future weapons systems. Nalas envisions that the ETIVS could be adapted to multiple weapons systems and energetic materials by simply changing the logic in the electronic circuit.
Brian will lead system integration, including hardware fabrication and software development. As a former civilian employee of the Naval Surface Warfare Center Indian Head, Brian led the design, development, and integration of several IM technology and material neutralization efforts using mechanical and energetic technology. Mall will lead all modeling efforts, including construction of the thermodynamic and electrical models as required, and leveraging his strong background in mathematical modeling of both physical and chemical processes.
We are excited and honored to have the opportunity to work closely with technical representatives from the US Navy and Safe-Arm Fuzing community during all stages of development!