Figure 13
From: Design of an enhanced mechanism for a new Kibble balance directly traceable to the quantum SI
Results of a finite element analysis (FEA) at a beam balance model of the QEMMS mechanism. Upper plot: the left axis shows a third order fit of the displacement force and the right axis the derived stiffness along the vertical (z) displacement axis. The solid lines are from finite element analysis and the dashed line is from the analytical model for the mechanism stiffness. The parameters for the simulation are: \(m = {6}~\text{kg}\), \(g = {9.81}~\text{N}\,\text{kg}^{-1}\), \(l_{1} = {250}~\text{mm}\), \(l_{2} = {100}~\text{mm}\). Lower plot: shows the horizontal trajectory error of the final stage of the mechanism dx over z