Design and Static Structural Analysis of Sapcecraft Motor Head

Authors- Mr. N. Raghuveer, Kadali Sanjay Kumar, Dasari Rambabu, Illa Divya Prakash, Chappidi Sarath Kumar

Abstract-– Pyrogen igniters are small rocket motors used to ignite large solid rocket motors (SRMs). The pyrogen igniter is integrated with the SRM, with its head-end fastened using M12 fasteners to ensure a leak-proof joint, sealed with O-rings to withstand high-temperature gases. The primary function of the pyrogen igniter head-end is to endure the igniter’s peak pressure for approximately one second and the rocket motor pressure for nearly 90 seconds. The head-end is fabricated using 15CDV6 steel, a high-strength alloy suited for extreme conditions. During manufacturing, it is subjected to 1.2 times the rocket motor’s Maximum Expected Operating Pressure (MEOP), equivalent to 88 ksc. To monitor strain levels, three strain gauges are strategically positioned at critical areas on the flange.

DOI: /10.61463/ijset.vol.13.issue2.295