Saturday, December 02, 2006
Simulation improves motor design
William M Erickson of Rexroth Corp describes his experiences of working with VisSim. "As a supplier of servo motors, drives and computer controls, we gain a substantial competitive advantage by being able to guarantee to our customers that the motors and drives we select will achieve the required performance criteria. Our customers are machine builders who use our servo products to perform motion control in a variety of applications, ranging from high-speed spindles to low-speed rotary tables.
Consider the customer who requires a very precise bandwidth (a measure of how well the real-world application follows the control command).
We don't want to supply a motor whose torque and velocity are so strong it will excite resonances in the machine.
Given the mechanical load, the mass of the customer's machine, and other factors, we determine the appropriate motor and drive, along with the exact set of control parameters.
We have to guarantee to the customer that these parameters will deliver the required performance bandwidth.
Until recently, we provided that proof by testing the components in our lab.
Consider the customer who requires a very precise bandwidth (a measure of how well the real-world application follows the control command).
We don't want to supply a motor whose torque and velocity are so strong it will excite resonances in the machine.
Given the mechanical load, the mass of the customer's machine, and other factors, we determine the appropriate motor and drive, along with the exact set of control parameters.
We have to guarantee to the customer that these parameters will deliver the required performance bandwidth.
Until recently, we provided that proof by testing the components in our lab.
# posted by Medical Information : 1:21 AM
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