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A unit module consisting of two actuators in either the retracted (A) or the extended (F) configuration (50 by 50). (B,G) Shows the initial simulation configuration. (C,H) Is the activated state of (A,F), resulting in a positively or negatively curved surface respectively. (D,I,E,J) Shows the simulation results in plan and isometric views, with geometrical parameters referred to in Table 1.
