2025 the 9th International Conference on Mechanical Engineering and Robotics Research (ICMERR), Barcelona, İspanya, 15 - 17 Ocak 2025, (Özet Bildiri)
The fuze is a critical subsystem within ammunition, primarily responsible for ensuring safety during transportation and storage, as well as enabling the ammunition to function correctly under specified conditions. It is advisable for fuze systems to achieve their operational objectives by detecting at least two independent environmental parameters, such as axial acceleration, rotational forces, temperature, and pressure. One common method to ensure safety involves the use of inertial mass-spring systems with zigzag slots. These mechanisms are favored in various ammunition systems due to their simplicity and effectiveness in detecting environmental conditions, specifically axial acceleration. The zigzag slot is employed to prolong the duration required for the inertial mass-spring mechanism to complete its movement under drop impacts, which are characterized by short durations (microseconds) and high accelerations (on the order of 10^3 g). This study presents a mathematical solution for the equation of motion governing inertial mass-spring mechanisms with zigzag slots. It includes both numerical and analytical analyses of these mechanisms subjected to drop test loads. Additionally, the study explores the
effects of various packaging methods on the performance of inertial mass-spring mechanisms with zigzag slots under drop test conditions, through both experimental and numerical investigations. The numerical analyses are conducted using Ansys Motion and Ansys LS-Dyna software.