Development of flexible telescopic boom model using absolute nodal coordinate formulation sliding joint constraints with LuGre friction

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...

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...

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

Advances on LuGre Friction Model

LuGre friction model is an ordinary differential equation that is widely used in describing the friction phenomenon for mechanical systems. The importance of this model comes from the fact that it captures most of the friction behavior that has been observed including hysteresis. In this paper, we study some aspects related to the hysteresis behavior induced by the LuGre friction model.

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...