Model Based Design of Pressure Proles for Pyrotechnic Actuator Using SPH Method & LsOpt® Solution

Pyrotechnic Pistons are communally used as fast reacting actuators in many elds and applications, such as seat belt pretensioners, wire and cable cutters and power disconnect devices. The design of such devices is subjected to many unknowns and the design methodology sometimes consists of many experiments in a trial & error methodology. This paper presents the design process of such a device. In this work a MBD process was applied using LsDyna® model and LsOpt® optimized solution for reaching upper and lower bounds for the pressure proles of a pyrotechnic device. The numerical solution decreases the number of required experiments in the design process and cuts its costs.