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Many Traditional Motion-Laws have Segment-Range parameters. The Segment-Range parameters specify the phases at which to start and end the mathematical-function of the motion-law.
Segment-Range parameters do NOT change the Segment-Width. One application of Segment-Range is to design Asymmetrical Motions - see below. |
The images below show the acceleration graph of a Modified Sinusoid motion-law with different Segment-Range parameter values. Note: the Segment-Width does not change. |
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![]() 1) Standard Mod Sine |
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1) Modified Sinusoid Motion-Law.
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![]() 2) Start Range = 0.2 ; End-Range = 1 |
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2) Modified-Sinusoid - 20% clipped from its Start.
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![]() Start Range = 0.0 ; End-Range = 0.8 |
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Modified-Sinusoid - 20% clipped from the End.
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See also: Segment Editor: Segment-Width, Segment Editor: Parameters |
You can use an Asymmetric Motion to accelerate rapidly and decelerate more gradually, or vice versa. In MotionDesigner, Asymmetric motion-laws combine two segments. In the image below, there is a Rise and Return motion. Usually, you would need two segments. However, there are three segments. Segments 1 (0-60º) and Segment 2 (60º-180º) combine to give an asymmetric Mod-Sine. The crossover is at 60º. Segment 3 (180º-360º) is a symmetric Mod-Sine. The crossover is at 270º the mid-point. |
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![]() Aysymmetric Mod-Sine | Symmetric Mod-Sine |
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Asymmetrical Mod-Sine Segments : Segment 1 Machine angle : ( of total Asymmetric motion-law ) Displacement : ( of total Asymmetric Displacement ) Start-Range = 0 ; End Range = 0.5 Segment 2 Machine angle : ( of total Asymmetric motion-law ) Displacement : ( of total Asymmetric Displacement ) Start-Range = 0.5 ; End Range = 1.0 Characteristics Values: Asymmetric and Symmetric Compared.
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