STIFFNESS ANALYSIS OF MULTI-CHAIN PARALLEL ROBOTIC SYSTEMS WITH LOADING Anatol Pashkevich, Alexandr Klimchik, Damien Chablat, Philippe Wenger Ecole des Mines de Nantes, 4 rue Alfred-Kastler, Nantes 44307, France Institut de Recherches en Communications et Cybernétique de Nantes, UMR CNRS 6597, 1 rue de la No, 44321 Nantes, France Abstract: The paper presents a new stiffness modelling method for...