I attempted to simulate external turning using Abaqus, with the workpiece speed set to 6.28/s and the analysis step time set to 1. The workpiece should theoretically revolve one revolution, but the output shows that the workpiece reference point did rotate one revolution, but the rotation involved in cutting appears to be minor.
1. The accompanying figure 1 depicts the workpiece’s boundary conditions (figure 2 shows the workpiece reference point is coupled to the left cross-section.).
2. The output rotation angle of the reference point on the workpiece is shown in figure 3.

3. The cloud diagrams 4&5 below illustrate how little the workpiece actually rotates.

How do I adjust the rotation boundary conditions so that the part’s real rotation matches the settings in the Abaqus cutting simulation?


Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

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Best Answer


You just need to create an Amplitude for your boundary conditions. Your velocity needs to be continuous. You see, your current boundary condition has no amplitude, and the angular velocity you specified will be applied instantaneously. It’s like applying initial velocity, so if the part makes contact with an object like the tool, this slows down the rotational speed. That is why it rotates with a small amount in the cutting process.

Therefore, create an amplitude. For example, see the figure I attached.

Also, I suggest checking the link below. It will give you useful information to resolve your future problems.

Best wishes.

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