| Autor: |
Zhong Hai Zhang, Duan Ling Li, Chun Xia Li |
| Rok vydání: |
2013 |
| Předmět: |
|
| Zdroj: |
Advanced Materials Research. :2062-2065 |
| ISSN: |
1662-8985 |
| DOI: |
10.4028/www.scientific.net/amr.753-755.2062 |
| Popis: |
A new 4-URU parallel metamorphic mechanism is proposed. A new method using screw adjacency matrix to describe the structural transformation of metamorphic mechanisms is put forward. This method overcomes the limitations of existing topological description method which cannot analyze the metamorphic mechanisms spatial structures and motion characteristics. Then the screw algebra method for analyzing the metamorphic mechanisms motion characteristics is introduced in detail. Firstly, screw motions homogeneous system of linear equations is determined by the screw adjacency matrix. Then the equations basic solution system determines the anti-screw system. Finally calculate the moving platforms motion screw system. Thus the metamorphic mechanisms motion characteristics, such as spatial structure in different configurations, the number of components and joints, degrees of freedom are obtained. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
|
