Add Force-Data FB

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Add Force-Data FB

Add Force-Data FB

See also: Force-Data FB dialog-box

Use a Spring FB to add a force between two Points that are in two different Parts.

The Forces a Spring FB can exert include:

•Spring Force - a force proportional to the difference of the distance between the Spring's Anchor-Point and its Free-Length.

•Constant Force - a constant force that only pulls or only pushes the Spring's Anchor-Points, throughout the machine-cycle.

•Coulomb Constant-Force - a constant force that acts in the opposite direction to the relative velocity between the Spring's Anchor-Point.

•Drag-Force - a force that is proportional to the relative velocity between the Spring's Anchor-Points.

•Drag-Force-Squared - a force that is proportional to the square of the relative velocity between the Spring's Anchor-Points.

See Spring FB dialog-box to edit these parameters.

Add Force-Data FB

MD-Icon-FB-ForceData

STEP 1: Start the Add Force-Data FB command

MD-Icon-Force-FB-ForcesData

Mechanism-Editor: Add menu > Forces sub-menu > Add Force-Data FB

OR

Mechanism-Editor: Forces toolbar > Add Force-Data FB (right of Graphic-Area)

STEP 2: Add a Force-Data FB to the graphic-area

1.Click Forces toolbar > Add Force-Data FB

- or -

1.Click Add menu > Forces sub-menu > Add Force-Data FB

2.Click in the graphic-area to place the Force-Data FB in the graphic-area.

The Force-Data FB is now in the graphic-area - see left

MD-Icon-FB-ForceData-DblClk

STEP 2.Open the Force-Data FB dialog

1.Double-click the Force-Data FB to open the Force-Data FB dialog-box.

- or -

See 'How to open a Dialog-Box'.

MD-DIALOG-FORCEDATA

STEP 3.Link the Force-Data FB to a Force-Element and a Point

A.Select a Force-Elements

1.Click a Force-element in the graphic-area or the Assembly-Tree

Force-elements include: Joint, 2D-Cam, Spring, Gear-Pair, Pulley, Rack-Pinion,

•The Joint, 2D-Cam or Spring shows in the box

•A list of Available Points shows in the box

B.Select a Point in the box of Available Points (see Note below)

1.Click a Point in the box below.

If you select a:

•Pin-Joint - there are two(2) Available Points
One Point on each Part of the Pin-Joint

•Slide-Joint - there are four(4) Available Points
Two Points on each Line of the Slide-Joint

•2D-Cam - zero(0) Available Points
Contact Point is selected

•Spring FB - two(2) Available Points
The Spring's Anchor Points

•Rack-Pinion - two(2) Available Points
The Contact-Points between the Rack and Pinion

Note: Even if a Point shows in the Selected Force Output Element box, click the Point in the Available Points box.

3.Click OK-tiny-11-15 to close the Force-Data FB