DLR Plenary Roller Spindle Drive in Spacelab Robot Technology Experiment, Multibody Simulation and Photoelastic Experiment

Kurzfassung

The DLR Planetary Roller Spindle Drive (PRSD), a new linear actuator developed at the German Aerospace Center (DLR), transforms fast rotation into slow but powerful linear movement. As part of the RObot Technolgy Experiment (ROTEX) on bord of the Spacelab D2-Mission, the PRSD passed its nail-proof successfully. To optimize dynamical behaviour and performance of modified PRSD design versions, modelling and calculation methods have been developed, taking into account the very special requirements of this new design. To analyze the operating characteristics and performance figures, the PRSD was modelled as a multibody system (MBS). Accompanying photoelastic experiments ensured the accuracy of the modelling. Computation of a PRSD showed satisfying accordance with testbench measurements.