A1 Journal article (refereed), original research

The effects of the oil entrained air on the dynamic performance of a hydraulically driven multibody system


Open Access hybrid publication

Publication Details
Authors: Mohammadi Manouchehr, Kiani-Oshtorjani Mehran, Mikkola Aki
Publication year: 2020
Language: English
Related Journal or Series Information: International Review on Modelling and Simulations
Volume number: 13
Issue number: 4
Start page: 141
End page: 147
Number of pages: 7
ISSN: 1974-9821
eISSN: 1974-983X
JUFO-Level of this publication: 1
Open Access: Open Access hybrid publication
Location of the parallel saved publication: http://urn.fi/URN:NBN:fi-fe2020100878387

Abstract

In co-simulation, a number of subsystems sharing details of a system,
are coupled to exchange data. The subsystem level development of each
package enhances the computational efficiency, and more sophisticated
packages can be created. However, the data exchange is not always
straight forward as different packages can be developed by different
research or industrial centers. Therefore, some standards such as
Functional Mock-up Interface (FMI) are developed to facilitate the data
exchange in co-simulation or co-integration. In this work, the
co-simulation approach is employed to investigate the effects of
dissolved air on the dynamic performance of a hydraulically driven
multibody system. To this end, the subsystems of multibody system
dynamics and a hydraulic model are coupled by using the FMU procedure.
The utilized FMUs are produced by using an XML model description and a C
code for the hydraulic part. The multibody mechanism under
investigation is a jib crane model containing three bodies. The model is
studied by exciting different sine inputs having known frequencies
while varying the amount of dissolved air in the hydraulic system. The
results have illustrated that by increasing the amount of entrained air,
the pressure amplitude decrease. In addition, the results demonstrated
that the amount of the air does not have effects on shifting the system
frequency.


Last updated on 2020-08-10 at 13:09