Modal analysis of a bistable deployable module with a refined joint model

Bistable deployable scissor structures (BDS) are interesting solutions for temporary civil engineering having the requirement of rapid erection and use. The transformation design BDS have been studied in various works literature using numerical simulations based on a quasi-static loading assumption. In contrast, their dynamic behavior factors influencing it not yet extensively investigated. This contribution presents computational study which natural frequencies vibration modes single square module evaluated, incorporating effects variation particular parameters specific to BDS, i.e. materials used inner outer scissors, finite joint stiffness manufacturing imperfections member lengths (in stochastic approach) two geometrical module. most dominant identified, effect is quantified, yielding results practical interest that can be reach target BDS.