Dynamic analysis of rotating shafts using the absolute nodal coordinate formulation

Dynamic Contact between a Wire Rope and a Pulley Using Absolute Nodal Coordinate Formulation

Wire rope and pulley devices are used in various machines. To use these machines more safely, it is necessary to analyze the behavior of the contact between them. In this study, we represent a wire rope by a numerical model of a flexible body. This flexible body is expressed in the absolute nodal coordinate formulation (ANCF), and the model includes the normal contact force and the frictional f...

Integration of the Equations of Motion of Multibody Systems Using Absolute Nodal Coordinate Formulation

Recently, a finite element formulation, called the absolute nodal coordinate formulation (ANCF), was proposed for the large rotation and deformation analysis of flexible bodies. In this formulation, absolute position and slope coordinates are used to define the finite element configuration. Infinitesimal or finite rotations are not used as nodal coordinates. The ANCF finite elements have many u...

Gradient-Based Optimization of Flexible Multibody Systems Using the Absolute Nodal Coordinate Formulation

Lightweight techniques are applied increaslingly often for modern machine designs, such as industrial robots or machine tools, to reduce the moving masses and therewith the energy consumption. However, as a result the stiffness decreases and considerable deformations arise. Thus, for a proper system analysis the method of flexible multibody systems has to be employed. For the optimization of su...

Laminated Composite Shell Element Using Absolute Nodal Coordinate Formulation and Its Application to Ancf Tire Model

Computer Implementation of the Absolute Nodal Coordinate Formulation for Flexible Multibody Dynamics

Deformable components in multibody systems are subject to kinematic constraints that represent mechanical joints and specified motion trajectories. These constraints can, in general, be described using a set of nonlinear algebraic equations that depend on the system generalized coordinates and time. When the kinematic constraints are augmented to the differential equations of motion of the syst...