Rigid-Flexible Coupling Dynamics Modeling of Spatial Crank-Slider Mechanism Based on Absolute Node Coordinate Formulation

In order to study the influence of compliance parts on spatial multibody systems, a rigid-flexible coupling dynamic equation crank-slider mechanism is established based finite element method. Specifically, absolute node coordinate formulation (ANCF) used formulate three-dimensional, two-node flexible cable element. The derived by Lagrange multiplier method and solved generalized α Newton–Raphson iteration combined. Comparison kinematics dynamics response between system pure rigid implies that part causes certain degree nonlinearity reduces reaction forces joints. elastic modulus also important system. With smaller modulus, motion accuracy become lower.