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.


The important information is below Mechanisms. The structure of the Kinematics-Tree is at three levels:

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

Kinematic-Chains

The objective is to make the Mobility of each kinematic-chain equal to zero. Then, we say the kinematic-chain is a kinematically-defined chain.

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

A.Solve[d] Mechanisms : called 'kinematically-defined chains'.

These kinematic-chains are identified in the Kinematics-Tree with the Green Icon-Solved-KinChain icon.

You can explore these kinematic-chains in the Kinematics-Tree.

These kinematic-chains have Dyads, Geared-Rockers, ...

These are assembled with the kinematic elements': Parts, Joints, Motion-Dimensions...

In the graphic-area, Parts and Joints that are kinematically-defined have Green Part-Outlines and Joints.

- or -

B.Unsolved Mechanisms : Kinematic-chains that not Kinematically-Defined .

These kinematic-chains are identified in the Kinematics-Tree with the Blue Icon-NotSolved-KinChain icon.

You can also explore these kinematic-chains.

You will see only the kinematic elements: 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

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