Design and Development of Multi-Lane Smart Electromechanical Actuators

Force equalisation in torque-summed electromechanical actuators

“…The basic structure and operation of classical dc machines were given in [33,4], where the author developed lumped models for the brushless dc motors. In the 3-phase model, these lumped models represent the models for each of the single phases, and will take into account the effect of phase shifting and the mutual inductance [34]. The actuator electrical and mechanical equations are summarised in equations (1~3), below:…”

“…Studies that addressed force fighting include the studies in [26,27,28,29,30,31,32,33,4,34]. The authors in [26] described the electromechanical actuation systems in the X-38 project, which main drive was to perform multiple unmanned drop test vehicles for unmanned space flight Proto-Flight Vehicle 201 (V-201).…”

“…The 4-lanes architecture that was developed by the Queen Mary University of London Group was designed to move the inner board aileron on the Sea-Harrier. The actuator matched its hydraulic counterparts in operation, redundancy and safety [4,33,34]. The group made a significant contribution by considering different architectures with various levels of modelling complexity and have investigated different threshold setting methods and different crossmonitoring techniques.…”