Force-Data FB

There are three steps you must do to use a Force-Data FB

STEP 1: Add to the graphic-area
STEP 2: Edit it and select a Point from the model
STEP 3: Analyse the Force acting on the Point

Use a Force-Data FB to measure the:

Force that acts on a Point
Torque at a Pin-Joint
Force at a Slide-Joint.
Cam Contact Force
Spring Force


[Right-side of Graphic-Area]: Forces toolbar > Add Force-Data FB


Add menu > Forces sub-menu > Add Force-Data FB


Force-Data FB dialog-box.

Force-Data FB in graphic--area

Force-Data FB in graphic--area

STEP 1: Add the Force-Data FB to the graphic area
1.Click Forces toolbar > Add Force-Data FB


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

Opening a Force-Data FB

Opening a Force-Data FB

STEP 2: Open the Force-Data FB dialog-box
1.Double-click the Force-Data FB to open the Force-Data FB dialog-box.


...see 'How to open a Dialog-Box'.

Force-Data FB with example selection of a Spring

Force-Data FB with example selection of a Spring

Force-Data FB dialog-box

STEP 3: Link to a Point that is associated with a Joint, Spring or 2D-Cam:

1.Select a Joint, 2D-Cam or Spring in the graphic-area or the Assembly-Tree

When you select a Joint, 2D-Cam or Spring:

The Joint, 2D-Cam or Spring shows in the box
A list of 'Available Points' shows in the box below, each with a 'Point Owner'
2.Click a Point in the list of Available Points (not in the graphic-area)

If you select a:

Pin-Joint - there are two Available Points in the box
One Point on each Line that make the Pin-Joint
Slide-Joint - there are four 'Available Points' in the box
Two Points on each Line that make the Slide-Joint
2D-Cam - there are no 'Available Points' in the box
The contact point is selected for you
Spring Force FB - there are two 'Available Points' in the box
Two Points that anchor each end of the Spring Force FB

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

3.Click OK-tiny-11-15

Available Point when you click on a:

Point at a Pin-Joint or Slide-Joint - no Motor: Total Force, X Force and Y Force that act on a Point
Point at a Pin-Joint - with a Motor: Motor Torque, Force X, Force Y if the Pin-Joint is configured as a Power Source
Point at a Slide-Joint - with a Linear Motor: Driving Motive Force.
2D-Cam: Cam Contact Force: Total Cam Force, X–axis component and Y–axis component.
Spring Force  Opposing Force Acting on the Point by the Spring.


Tutorial and Reference Help Files for MechDesigner and MotionDesigner 13.2 + © Machine, Mechanism, Motion and Cam Design Software by PSMotion Ltd