BECKHOFF AL2000 Application - Manual (Page 20)

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3. Linear motor dimensioning
Introduction
The choice for the right linear motor size depends on the requirements of your positioning application, espe-
cially the worst case requirements. These requirements can be modelled and translated in some characteristic
parameters, such as time, maximum speed, mass of load, inertia and friction. By means of a kinematic and
force analysis these parameters can be linked to typical motor parameters, like peak force and continuous
force. On base of the calculated values an appropriate motor size is to be selected. In addition the appropriate
servo-amplifier can be chosen.
Below a case is worked out as a kind of finger exercise. Understanding this case requires basic knowledge of
some physical laws and principles, especially kinematics and dynamics.