ralph-cooper's Blog
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S curve question
March 4, 2009 by ralph-cooper
I am in the process of evaluating the sizing software and have a
> question.
> I started with a very simple ball screw and some “manufactured
> parameters” to test out the application.
> The file as shown comes out correctly as far as peak torque is
> concerned (I calculated the values by hand), i.e., the results shows complete correlation to my hand calculated figures. However, this is with a trapezoidal curve and linear acceleration. When I alter the motion parameter section to use 100% S curve and hit submit, I noticed two things…
> 1. The listed acceleration on the motion screen does not
> change (this cannot be!)
> 2. The peak torque does not alter to suit in the final
> report- with 2X acceleration (100% S curve) it should be much higher.
>What am I doing wrong or do not understand?
