Kinematics-Tree

The Kinematics-Tree shows the structure of each kinematic-chain.

MechDesigner compiles the Kinematic-Tree automatically as you add the different Kinematic and Machine Elements to your model.

Icon-KinChainHead

The header of the Kinematic-Tree has the name Mechanisms.

Note: If a small '+' sign does not show to the left of 'Mechanism', then click the 'Rebuild-Button'.


TOP-TIP - To find the kinematic-chain for a Part in your model:

1.Click the Kinematic Tree tab
2.Click the Part in the graph-area

The Kinematics-Tree will expand to show the element.


Structure of the Kinematics-Tree

Mechanisms:
Kinematic-Chains [Solved and Unsolved]
Kinematic Sub-assemblies
Kinematic Elements

In the Kinematics-Tree, the kinematic-chains are either:

A.Icon-Solved-KinChain Kinematic-Chain

The Mobility of each kinematic-chain is equal to zero[0]. You cannot 'drag' the Parts

The kinematic-chain is a kinematically-defined chain.

Explore these to find the Kinematic Sub-Assemblies [see below] and then the kinematic elements.

B.Icon-NotSolved-KinChain Unsolved Mechs

The Mobility of each kinematic-chains is greater than zero[0].  You can 'drag' the Parts

You can also explore these kinematic-chains.  However, you will see only Parts and Joints.


Example: Kinematics-Tree in Element-Explorer

Example: Kinematics-Tree in Element-Explorer

Kinematic-Sub-Assemblies [Solved Mechanisms]:

2.Motion-Paths
3.Dyads - all have two Parts and three Joints

Note:

R : Revolute = Pin-Joint

P : Prismatic = Slide-Joint

S : Spherical = Ball-Joint


a.RRR
b.RRP
c.RPR
d.PRP
e.RPP
f.Ram-R
g.Ram-P
h.SSR
i.SSP
4.Geared-Rockers - a Gear-Pair, a Joint and a Part
5.Rack-Pinion / Pinion-Rack
6.Geared-Pulley - a Pulley-Path, Part and Joint

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