On the constraints violation in forward dynamics of multibody systems

F Marques, AP Souto, P Flores - Multibody System Dynamics, 2017 - Springer
It is known that the dynamic equations of motion for constrained mechanical multibody
systems are frequently formulated using the Newton–Euler's approach, which is augmented …

Multibody dynamics with redundant constraints and singular mass matrix: existence, uniqueness, and determination of solutions for accelerations and constraint forces

J García de Jalón, MD Gutierrez-Lopez - Multibody System Dynamics, 2013 - Springer
This paper addresses some important issues for multibody dynamics; issues that are basic
and really not too difficult to solve, but rarely considered in the literature. The aim of this …

Direct sensitivity analysis of multibody systems with holonomic and nonholonomic constraints via an index-3 augmented Lagrangian formulation with projections

D Dopico, F González, A Luaces, M Saura… - Nonlinear …, 2018 - Springer
Optimizing the dynamic response of mechanical systems is often a necessary step during
the early stages of product development cycle. This is a complex problem that requires to …

Constructal design of circular multilayer microchannel heat sinks

MR Salimpour… - Journal of …, 2019 - asmedigitalcollection.asme.org
Based on the constructal theory concepts, an investigation is carried out to optimize circular
multilayer microchannels embedded inside a rectangular heat sink with different numbers of …

Direct integration of the equations of multibody dynamics using central differences and linearization

G Urkullu, IF de Bustos, V García-Marina… - Mechanism and Machine …, 2019 - Elsevier
A methodology for integrating rigid body dynamics for the analysis of multibody systems is
presented. The novelty lies in the fact that the equation system is solved directly by means of …

Stress distribution around an elliptic hole in a plate with 'implicit'and 'explicit'non-local models

M Tuna, P Trovalusci - Composite Structures, 2021 - Elsevier
Understanding the effects of defects is crucial due to their deliberate or unintentional
presence in many materials. Classical theory of elasticity may not be the best candidate to …

[HTML][HTML] Numerical and experimental investigation on the synthesis of extended Kalman filters for cable-driven parallel robots modeled through DAEs

J Bettega, G Boschetti, BR Frade, F González… - Multibody System …, 2024 - Springer
Cable-driven parallel robots are parallel robots where light-weight cables replace rigid
bodies to move an end-effector. Their peculiar design allows obtaining large workspaces …

Behaviour of augmented Lagrangian and Hamiltonian methods for multibody dynamics in the proximity of singular configurations

F González, D Dopico, R Pastorino, J Cuadrado - Nonlinear Dynamics, 2016 - Springer
Augmented Lagrangian methods represent an efficient way to carry out the forward-
dynamics simulation of mechanical systems. These algorithms introduce the constraint …

[HTML][HTML] Model predictive control for path tracking in cable driven parallel robots with flexible cables: collocated vs. noncollocated control

J Bettega, G Piva, D Richiedei, A Trevisani - Multibody System Dynamics, 2023 - Springer
This paper proposes a novel control scheme for precise path tracking control in cable driven
parallel robots (CDPRs) with axially-flexible cables, with particular focus to the challenging …

Assessment of linearization approaches for multibody dynamics formulations

F González, P Masarati… - Journal of …, 2017 - asmedigitalcollection.asme.org
Formulating the dynamics equations of a mechanical system following a multibody dynamics
approach often leads to a set of highly nonlinear differential-algebraic equations (DAEs) …