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글 편집
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Sometimes, you may want to convert the units in the plot from degrees to radians or rad/s to RPM
1. Degrees to Radians: multiply the degree measurement by π/180 (approximately 0.01745).
2. Deg/s to RPM: multiply the deg/s value by 1/6 or 60/360 (approximately 0.16667).
3. Rad/s to RPM: multiply the rad/s value by (180 × 60) / (π × 360) (approximately 9.5493).
In RecurDyn, SimpleMath
enables you to switch between deg/s effortlessly or convert angular velocity from rad/s to RPM without the need for manual multiplication of values.
#1 Degrees to Radians
1. Draw a graph in degrees.
(This model rotates 10 rad/sec or about 573 deg/sec, resulting in 34377.47 degrees of rotation in 60 sec.)
2. On the Tool tab, in the Analysis group, click Math (SimpleMath).
3. In the Data Analysis dialog window, set the Math Type to Scale : alpha * F1 and set the Y Scale Factor Type to Degree -> Radian.
- The Scale : alpha * F1 option multiplies the curve data by the factor alpha.
4. Click Execute to draw the plot in the selected scale.
- For the Plot to New Page option, select Yes to draw the graph on a new page or select No to draw it on the current page.
- Set the Add to Database option to Yes to add the data from the new graph to the database.
(The model rotates 10 rad/sec, resulting in 600 radians of rotation in 60 sec.)
#2 Radian/s to RPM
You can use the similar procedure to convert the scale from rad/s to RPM. In the Data Analysis dialog window, set the Math Type to Scale : alpha * F1 and set the Y Scale Factor Type to rad/s -> RPM, and then click Execute.
- To use a different unit, set the Y Scale Factor Type to User Defined Factor, and then type the desired factor in the Y Scale Factor field.
- You can multiply the value of the X axis by a scale factor in the same way as you do for the Y axis.
