The Shackle component is used to define the orientation of the shackle with respect to the leaf eye on to which it is going to get mounted and it is required only if either of the eye hook doesn’t choose “Slider”.

Shackle Properties

The following section explains the options used in the Shackle Properties:

Shackle Location: Defines the shackle location either Rear or Front.

Type:  Defines the type of the shackle either Compression or Tension.

Mass: Defines the mass of the shackle.

Thickness: Defines the thickness of the shackle.

Length (Lss): Defines the shackle length.

Shackle center offset:  Defines the offset distance between shackle centre and eye hook centre in property file units.

If the shackle center offset value is positive, then shackle will be oriented as shown in the following image.

If the shackle center offset value is negative, then shackle will be oriented as shown in the following image.

Inertia Ixx: Defines the second moment of inertia about X direction of the shackle

Inertia Iyy: Defines the second moment of inertia about Y direction of the shackle

Inertia Izz: Defines the second moment of inertia about Z direction of the shackle

Mounting Length (Lcc): Defines the distance between the shackle center and the far eye center.

Shackle Geometry Triangle

LCC = eye to shackle length.

LEE  = eye to eye distance of master leaf.

LSS  = shackle length.

Shackle Properties for Leaf Spring Property File (*lpf)

In the Shackle Properties block of Leaf Property file, the attribute, type, and valid value that has to be entered in TiemOrbit file format is detailed in the following table. This table also provides the information about whether an attribute is a required.

An example of how a Shackle Properties block is represented in a TiemOrbit file format is shown below: