Data underlying the publication: A single-input state-switching building block harnessing internal instabilities
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This dataset supports the research presented in "A single-input state-switching building block harnessing internal instabilities" (Mechanism and Machine Theory, 2024). The study introduces a fully elastic mechanism capable of reversibly switching between two stable mechanical states through repeated application of a single repeating input. The mechanism combines a bistable state element, a buckling column operating near bifurcation, and a nonlinear connecting spring. State-dependent mechanical interactions determine the subsequent transition without requiring separate actuation inputs. The research combines analytical modeling, nonlinear finite element analysis (FEA), and experimental validation. An analytical spring-based rigid-body model was developed to identify the requirements for state switching. Numerical simulations using ANSYS APDL were performed to investigate the compliant mechanism, characterize its response, and identify influence of geometrical parameters. A monolithic prototype fabricated from polyamide-12 was experimentally characterized using force-displacement measurements and video-based displacement tracking. The associated research data support the …
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