Curve: Tendon Profile

Function

Generate tendon profile of spline or round type in the 3D space by entering 3D coordinates.

Call

Main Menu : Geometry > Curve > Create 3D > Tendon Profile...

<Tangent Line to Conic Curve>

Tendon Name

Enter a name of tendon profile. 

Curve Type

Select the type of curvature for tendon placement.

Spline

Calculate the minimum polynomial curvature connecting the points defining the tendon profile and auto-place the tendons.

Round

Place the tendons following the circle, which forms tangents to the straight lines connecting the points defining the tendon profile.

Straight Length of Tendon

Specify the straight portions of the tendon at both ends.

Begin

Straight portions of the tendon at the beginning of the tendon

End

Straight portions of the tendon at the end of the tendon

Profile

Place the tendon profile by defining the coordinates of the tendon. The tendon coordinate system (TCS) used here is temporary, and its origin is the Profile Insertion Point. As many coordinates as required to define the profile may be specified, but at least two (start and end) points are required.

Point of Sym.

First

The starting point of the current Tendon is assumed to be the axis of symmetry.

Last

The end point of the current Tendon is assumed to be the axis of symmetry.

Make Sym. Tendon

Tendon Profile is created on the basis of the selected symmetry point (First or Last).

Profile Insertion Point

The origin of the tendon coordinate system (start point of tendon) is identified and inserted into the actual location in the global coordinate system.

x Axis Direction

Define the x-axis of TCS for tendon placement

X

x-axis of TCS is parallel with GCS X-axis

Y

x-axis of TCS is parallel with GCS Y-axis

Vector

Define the TCS x-direction by a vector.  

x Axis Rot. Angle

The tendon profile placed in the table is rotated about TCS x-axis by the Angle. This is usefully implemented when placing a tendon on an inclined (non-vertical) web

Grad. Rot. Angle

The tendon placement is rotated about the GCS Y or X-axis. This is a useful feature when attempting to place the tendon in a section, which is tilted (rotated) about its local x-axis.