2025/06/27 by Zeyuan He, Daniel Robertz, Robertz, Daniel +1
Engineering · #Control and Stability of Dynamical Systems #Structural Analysis and Optimization #Topology Optimization in Engineering #math.MG
paper · pdf · doi:10.48550/arxiv.2506.22019
openalex publication_date 2025/06/27 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
There has been a longstanding confusion on the proper definition of higher order rigidity and flexibility in geometric constraint systems. Recently, an energy-based formulation of higher-order rigidity was introduced by Steven Gortler, Miranda Holmes-Cerfon, and Louis Theran (2025). In this article, we apply the framework to polyhedral surfaces and introduce new criteria for testing second-order prestress stability and third-order rigidity. Furthermore, we present comprehensive case studies of polyhedral surfaces exhibiting different levels of higher-order shakiness. These results advance the understanding of higher-order rigidity and flexibility in origami-inspired structures, which are also applicable to a broad class of near-mechanisms. Clarifying the transition from higher-order flexibility to finite mechanisms opens new directions for both theoretical investigation and mechanism design.