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CAE Fidesys 9.0 Documentation |
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CAE Fidesys 9.0 Documentation |
Spherical CS (SCS) are used for fastening in the radial direction and around two axes Y and Z. Thus, when specifying spherical CS, it is necessary to specify the center point of the CS, from which the radius will be counted, and the direction of the X and Y axes. The Z axis will be perpendicular to them.
In the figure below, X-clamping means radial clamping, Y and Z-clamping means rotational clamping around these axes, respectively.
It should be noted that fixation along the Y component will mean fixation of the theta angle, which is in the plane of the radius vector from the center of the CS to the node and the Z axis. Thus, depending on the position of the body relative to the axes, fixation along Y can mean either fixation from rotation y-axis, or fixation from rotation around the x-axis, as shown in the example below.
When you rotate a segment around the Z-axis by 90 degrees, pinning along the Y-axis in a spherical CS will result in pinning around the X-axis.
An example of solving a problem with a spherical coordinate system: Calculation of a shaft segment in a spherical coordinate system.