Advancements in materials science and mechanical systems have spurred widespread investigation into non-traditional structures. In particular, a novel structure characterized by steady-state transition demonstrates exceptional mechanical properties and excellent energy absorption performance. This research used a genetic algorithm to address the design and optimization of a three-dimensional disc steady-state transition structure. In addition, a reciprocal loading test was conducted on the optimized structure to investigate its mechanical features and energy dissipation process. Furthermore, the study discussed the impact of series and parallel combination forms on the structure's steady-state transition. The findings revealed that the optimized novel structure exhibits a pronounced steady-state transition phenomenon characterized by significant negative stiffness, reduced structural damage, and exceptional recoverability. The reciprocal loading test results demonstrated that the structure can dissipate energy effectively while maintaining material elasticity. The analysis of combination forms presented that parallel connections increase the number of steady states twice and enhance energy dissipation, while series connections increase structural deformation stiffness without increasing the number of steady states. Consequently, the optimized steady-state transition structures exhibit substantial potential in improving structural resilience under seismic and impact forces with more stability and safety of structures. |
