Effect of boundary conditions on a high-performance isolation hexapod platform

Isolation of spacecraft microvibrations is essential for the successful deployment instruments relying on high-precision pointing. Hexapod platforms represent a promising solution, but difficulties associated with attaining desirable 3D dynamics within acceptable mass and complexity budgets have led to minimal practical adoption. This paper addresses influence strut boundary conditions (BCs) system-level mechanical disturbance suppression. Inherent limitations traditional all-rotational joint configuration are highlighted shown originate in link rotational inertia. A pin-slider BC alternative proposed analytically proven alleviate them both 2D 3D. The advantages new hold arbitrary parallel manipulators demonstrated several hexapod geometries through numerical tests. favourable performance suggested. Finally, novel planar that allows physical realisation described validated. Consequently, this work enables development microvibration attenuation do not require active control.