A1 Journal article (refereed), original research

Combined semi-recursive formulation and lumped fluid method for monolithic simulation of multibody and hydraulic dynamics

Publication Details
Authors: Rahikainen Jarkko, Mikkola Aki, Sopanen Jussi, Gerstmayr Johannes
Publisher: Springer Verlag (Germany)
Publication year: 2018
Language: English
Related Journal or Series Information: Multibody System Dynamics
ISSN: 1384-5640
eISSN: 1573-272X
JUFO-Level of this publication: 2
Open Access: Not an Open Access publication


The use of multibody simulation tools allows complex machinery to be
described in detail while still providing a solution for the system in
real time. As mechanical components are often accompanied by other
dynamical systems, such as hydraulics, description of each subsystem is
required to fully describe the dynamics of complex machinery.
A potential candidate for solving the multiphysics problem at hand is
known as the unified or monolithic approach. This strongly coupled
approach yields a single set of equations to be integrated and, compared
to co-simulation and co-integration approaches, a relatively simple
integration procedure. In this paper, a monolithic formulation for a
combined simulation of multibody and hydraulic dynamics using an
efficient semi-recursive formulation and the lumped fluid method is
introduced. The results indicate that the proposed method shows
potential for efficient simulation of combined multibody and hydraulic
problems. The robustness of the multibody method is maintained when
combined with the hydraulic dynamics description and higher efficiency
is observed than with an equivalent global approach.

Last updated on 2019-13-03 at 12:00