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WinMecC: Software for the Analysis and Synthesis of Planar Mechanisms
A. Bataller, A. Ortiz, J. A. Cabrera and F. NadalDepartment of Mechanical Engineering
University of Málaga.
6 th European Conference on Mechanism ScienceNantes, France
WinMecC: Software for the Analysis and Synthesis of Planar Mechanisms
Overview
- Introduction
- Mechanism Creation Example
- Kinematic and Dynamic Analisys Module
o Educational Examples
- Synthesis Module
o Demonstration
- Conclusions
6 th European Conference on Mechanism ScienceNantes, France
WinMecC: Software for the Analysis and Synthesis of Planar Mechanisms
Introduction
- Analysis and synthesis of one-degree-of-freedom planar mechanisms consisting ofany number of links.
- Created for educational purposes.
- Easy and interactive creation of mechanisms.
- Results with numbers and graphs.
- Synthesis module based on evolutionary algorithms.
6 th European Conference on Mechanism ScienceNantes, France
WinMecC: Software for the Analysis and Synthesis of Planar Mechanisms
Mechanism Creation Example
(a) Insert a base mechanism of four bars.
(b) Define point C on link 2.
(c) Add a dyad linked to points B and C.
(d) Add point E to link 6.
(e) Join a new dyad to point E.
6 th European Conference on Mechanism ScienceNantes, France
WinMecC: Software for the Analysis and Synthesis of Planar Mechanisms
Kinematic and Dynamic Analisys Module
- Pre-solved equations per dyad using classical MMT.
- Results updated in real time while changing the mechanism and input data.
- Kinematic cycle steps defined by angle, time or speed.
- Results shown in a didactic way.
6 th European Conference on Mechanism ScienceNantes, France
WinMecC: Software for the Analysis and Synthesis of Planar Mechanisms
Kinematic and Dynamic Analisys Module
6 th European Conference on Mechanism ScienceNantes, France
O2
B
O4
C
2
3 4
C
ICR1,3
VC
AC
A
Point C
trajectory
Point C
velocity
hodograph
AnC
AtC VB
VA
AB AnB
AtB
AA
AnA
AtA
AC
AC
Example 1- Velocity and acceleration vectors of points A, B and C in a four-bar linkage
- Point trajectory, instant curvature radiusρC, point C velocity hodograph and IRC13
WinMecC: Software for the Analysis and Synthesis of Planar Mechanisms
Kinematic and Dynamic Analisys Module
Example 2- Fixed and moving centroid of a double slider mechanism.- IRC13 is the point of tangency between the fixed and moving centroids.
6 th European Conference on Mechanism ScienceNantes, France
WinMecC: Software for the Analysis and Synthesis of Planar Mechanisms
Synthesis Module
6 th European Conference on Mechanism ScienceNantes, France
- Based on an Evolutionary Algorithm.
- Any mechanism created with the Analysis Module can be optimized.
- Path and function generation synthesis.
WinMecC: Software for the Analysis and Synthesis of Planar Mechanisms
Synthesis Module
6 th European Conference on Mechanism ScienceNantes, France
- The design variables are automatically identified by WinMecC.
- Parameters of the evolutionary algorithm can be modified.
- Restrictions can be activated.
- Different objective functions.
WinMecC: Software for the Analysis and Synthesis of Planar Mechanisms
Synthesis Module
6 th European Conference on Mechanism ScienceNantes, France
Example 3- Example of a path generation synthesis using turning functions
WinMecC: Software for the Analysis and Synthesis of Planar Mechanisms
Conclusions
6 th European Conference on Mechanism ScienceNantes, France
- Powerful educational tool for planar mechanism analysis.
- Helps to develop student’s self-learning capabilities.
- Flexible, versatile and user-friendly
- Results shown in real time.
- Synthesis module provides accurate results.
- Synthesis module interesting not only for students but also for researchers.
WinMecC: Software for the Analysis and Synthesis of Planar Mechanisms
A. Bataller, A. Ortiz, J. A. Cabrera and F. NadalDepartment of Mechanical Engineering
University of Málaga.
6 th European Conference on Mechanism ScienceNantes, France
