Exempel på actuator

• A broken actuator can lock a part into position.

• The company makes actuators, devices that fit on to the valves along pipelines, controlling the opening and closing of the valve.

• There's never been an actuator failure.

• Since all links are assumed rigid, the compliance of the mechanism will be induced solely by the compliance of the actuators.

• One of the topics is the implementation of alternative actuators replacing the widely spread electrical drives, in order to make lightweight structures and compliant joints.

• Three actuators provide gross/fine opening and closing of the tips plus lateral motion.

• The performance index was the energy consumed by the actuators during the motion, evaluated from the dynamic model of the mechanism and actuators.

• However, the inertia of the axis hardware, including actuators, has a very significant influence on the performance of supporting axis.

• The mechanical energy of the actuators is considered for the formulation of the objective function.

• The latter may seem somewhat specialized, but is important because hydraulic actuators are critical components of robotic devices that enter hazardous environments.

• In this case, embedded intelligence is associated to several actuators and sensors.

• During the single support phase, the configuration of the biped is defined by five independent variables, but there are only four actuators.

• Interesting examples are given by under-actuated grippers or hands, which are defined as those with more d. o. f. s than actuators.

• In designing dynamic systems, actuators with enough torque capacity are selected to fully actuate the systems.

• However, enough capacity of actuators cannot be selected in most robot manipulators since the actuating motors of robot manipulators are serially placed on links.

• No brake is used so the negative work must be produced by the actuators.

• In this case, the number of configuration variables is greater than the number of actuators during single support or flight phases.

• The sensors and actuators used should be limited to those currently available on a modern loading machine.