Pseudo-rigid-body model of a six-bar full-compliant mechanism
-
摘要: 設計了一種六桿柔順機構,建立了該機構的偽剛體模型,偽剛體模型顯示該機構由兩個柔順滑塊機構串聯而成.根據偽剛體模型對該六桿柔順機構進行了變形分析,推導出六桿柔順機構偽剛體模型的力-位移關系的一般理論計算公式,進而得到該機構實例的分析結果.用ANSYS軟件對該設計實例進行了力-位移關系的有限元仿真分析,同時加工制造出該設計實例的實物模型并進行了實驗測量.對理論計算結果、仿真分析結果和實際測量結果進行了比較,三種方法所得結果基本一致,表明了理論公式的推導與分析是正確的,仿真建模分析也是正確的,并且該實例的設計是可行的,達到了設計目的.Abstract: A six-bar full-compliant mechanism was designed, and its pseudo-rigid-body model was established, which shows that it is composed of two compliant slide mechanisms. Deformation analysis of the full-compliant mechanism was performed according to the pseudo-rigid-body model, and a theoretical formula of force and displacement was deduced for the pseudo-rigid-body model. An example was presented to embody the full-compliant mechanism, and its relationship of force and displacement was numerically analyzed using ANSYS software. Meantime, a physical model of this example was manufactured for experimental measurement. By comparing the results of theoretical calculation, simulation analysis and actual measurement it can be concluded that the results of the three methods are basically the same, indicating that the theoretical derivation and analysis of the formula is correct, the simulation analysis is precise, and the design of the example is feasible to achieve the design goal.
-
Key words:
- compliant mechanisms /
- pseudo-rigid-body models /
- deformation /
- testing /
- finite element method
-

計量
- 文章訪問數: 236
- HTML全文瀏覽量: 42
- PDF下載量: 17
- 被引次數: 0