Abstract
The operating principle of over-center locking on spatial mechanism is analyzed and a reliability analytical model of over-center locking on spatial mechanism is proposed. Besides, the genetic algorithm and Newton method are combined to solve the nonlinear equation system about the over-center locking angle, and then the dimensions of the spatial mechanism are treated as the input parameters of the well-trained neural network. The over-center locking angle is obtained by utilizing the neural network's nonlinear mapping function to calculate the dispersion. The results show that in a spatial four-bar mechanism, the dimensions of driving link, coupler link and their corresponding variation coefficients have prominent influence on the reliability of over-center locking. The proposed model and methods not only could provide helpful reference in designing over-center locking of special four-bar mechanism, but also improve the computational efficiency noticeably.
| Original language | English |
|---|---|
| Pages (from-to) | 710-715 |
| Number of pages | 6 |
| Journal | Jixie Qiangdu/Journal of Mechanical Strength |
| Volume | 36 |
| Issue number | 5 |
| State | Published - 15 Oct 2014 |
Keywords
- Genetic algorithm
- Locking
- Neural network
- Over-center
- Reliability analysis
- Spatial mechanism
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