Modelling the Effects of Constrained Warping, Non-Linear Torsion and Anticlastic Curvature at Large Deflections of Leaf Springs

EasyChair Preprint 13506

Abstract

A general method for modelling flexible multibody systems based on finite elements is applied to the analysis of deflections of leaf springs as used in precision machinery. First, the method is reviewed. Then, a finite beam element for modelling leaf springs that can include effects of constrained warping, non-linear torsion and anticlastic curvature is presented. The formulation makes use of assumed strains that are integrated over the length of the beam. A comparison of large static deflections of a cantilever leaf spring is made with a previous formulation and detailed finite element solutions. An application to a parallel leaf spring guidance flexure is shown.

Keyphrases: Anticlastic curvature, Leaf spring, compliant mechanism

@booklet{EasyChair:13506,
  author    = {J. P. Meijaard and M. Nijenhuis},
  title     = {Modelling the Effects of Constrained Warping, Non-Linear Torsion and Anticlastic Curvature at Large Deflections of Leaf Springs},
  howpublished = {EasyChair Preprint 13506},
  year      = {EasyChair, 2024}}