Difference between revisions of "Denavit-Hartenberg parameters"

From Robotics
Jump to: navigation, search
Line 1: Line 1:
 
{{Navigation|before=[[Assigning coordinate frames]]|overview=[[Denavit-Hartenberg Convention]]|next=[[A-matrices]]}}
 
{{Navigation|before=[[Assigning coordinate frames]]|overview=[[Denavit-Hartenberg Convention]]|next=[[A-matrices]]}}
  
[[File:dh-params-general.png|left|220px]]
+
[[File:dh-params-general.png|right|220px]]
 
When the [[Assigning coordinate frames|coordinate frames]] are assigned to a manipulator, the transformations between the consecutive links have to be described. Therefor the 4 Denavit-Hartenberg parameters are used, which are defined as follows:
 
When the [[Assigning coordinate frames|coordinate frames]] are assigned to a manipulator, the transformations between the consecutive links have to be described. Therefor the 4 Denavit-Hartenberg parameters are used, which are defined as follows:
  
 
;<math>\theta</math>
 
;<math>\theta</math>
 
:text fgf
 
:text fgf
 +
 
;<math>d</math>
 
;<math>d</math>
 
:text fg d
 
:text fg d
 +
 
;<math>l</math>
 
;<math>l</math>
 
:text gdg
 
:text gdg
 +
 
;<math>\alpha</math>
 
;<math>\alpha</math>
:text ggd gdg
+
:text ggd gd
  
 
[[File:dh-params-steps.png|center|850px]]
 
[[File:dh-params-steps.png|center|850px]]

Revision as of 17:52, 12 November 2015

← Back: Assigning coordinate frames Overview: Denavit-Hartenberg Convention Next: A-matrices
Dh-params-general.png

When the coordinate frames are assigned to a manipulator, the transformations between the consecutive links have to be described. Therefor the 4 Denavit-Hartenberg parameters are used, which are defined as follows:

\theta
text fgf
d
text fg d
l
text gdg
\alpha
text ggd gd
Dh-params-steps.png