On Equations of Motion of Elastic Linkages by FEM

Table 1

Four-bar linkage parameters [3].

Parameters	Crank	Coupler	Follower
Length, m	0.10795	0.2794	0.27051
Cross-section, m^2	1.07×10^−4	0.406×10^−4	0.406×10^−4
Bending moments of inertia, m^4	1.62×10^−10	8.67×10^−12	8.67×10^−12
Distance between ground pivots: 0.254 m.
Lumped mass at node 3: 0.0450 kg
Lumped mass at node 5: 0.0375 kg
Modulus of elasticity: 0.71 × 10^11 N/m^2
Mass density: 2710 kg/m^3