Effect of Engine Fastening Points’ Amount on the Vessel’s Foundation towards Vibration Transmissibility Value in Traditional Vessel Structures

Debby R. Lekatompessy

2019

Abstract

In the rubber damper designed in the previous study, vibration was reduced by 65% on engine no. 1 and 59% in engine no. 2 with a considerable amplitude value of 0.0276 mm and 0.0282 mm, respectively. By using the Barkan engine's allowable amplitude ranging from 0.02 mm - 0.03 mm, after the installation of a rubber damper, the vibration can be reduced to safe limit. The research continues by analysing the machine foundation-stretching system with the amount of fastening points of 2, 3, and 4. The increase in the number of fastening points causes the amplitude to be reduced even further. The calculation results can be seen by reducing the value of the transmission force to the foundation. By doing so, the amplitude value decreases as the engine’s load decreases due to the system's work. The number of fastening points affects the value of the distribution of the bending stress (s) and shear stress (ss). Increasing the fastening point reduces the value of the bending stress (s) and shear stress (ss). The allowable bending stress (s) and shear stress (ss) used are 6.4 MPa and 0.45 MPa consecutively, given by the National Design Specification. The calculation results show the value is below the allowable limit. Based on the calculation results, the smallest amplitude value is obtained at the four-point fastening points. Therefore, it is better if the amount of existing fastening points is increased. From these results, it can be seen that the foundation is still within the safety limits.

Paper Citation

in Harvard Style

Lekatompessy D. (2019). Effect of Engine Fastening Points’ Amount on the Vessel’s Foundation towards Vibration Transmissibility Value in Traditional Vessel Structures. In Proceedings of the 4th International Conference on Marine Technology - Volume 1: senta, ISBN 978-989-758-557-9, pages 111-116. DOI: 10.5220/0010855100003261

in Bibtex Style

@conference{senta19,
author={Debby R. Lekatompessy},
title={Effect of Engine Fastening Points’ Amount on the Vessel’s Foundation towards Vibration Transmissibility Value in Traditional Vessel Structures},
booktitle={Proceedings of the 4th International Conference on Marine Technology - Volume 1: senta,},
year={2019},
pages={111-116},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0010855100003261},
isbn={978-989-758-557-9},
}

in EndNote Style

TY - CONF

JO - Proceedings of the 4th International Conference on Marine Technology - Volume 1: senta,
TI - Effect of Engine Fastening Points’ Amount on the Vessel’s Foundation towards Vibration Transmissibility Value in Traditional Vessel Structures
SN - 978-989-758-557-9
AU - Lekatompessy D.
PY - 2019
SP - 111
EP - 116
DO - 10.5220/0010855100003261