The Analysis of a Simplified 2R Pseudo-Rigid-Body Model with Moment Load
Pseudo-rigid-body model (PRBM) method, which simplifies the geometrical nonlinear analysis, has become an important tool for the analysis and synthesis of compliant mechanisms. In this paper, a simplified 2R PRBM with two rigid links and two torsion springs is proposed. The characteristic radius factor and stiffness coefficients are selected as the design variables; in order to be better to simulate the tip point and tip slope, a three-dimensional objective function is formulated to optimize the new pseudo-rigid-body model. It is revealed in this paper that the precision of the tip point simulation can be improved when the coefficient of the tip slope error in the objective function is reduced.
Y. J. Zhang et al., "The Analysis of a Simplified 2R Pseudo-Rigid-Body Model with Moment Load", Applied Mechanics and Materials, Vol. 224, pp. 18-23, 2012