ANALISA POSISI PELAT PEREDAM GERAK LATERAL CAIRAN DI DALAM TRUK TANGKI OVAL YANG DIMODIFIKASI MENGGUNAKAN KOMPUTASI DINAMIKA FLUIDA
DOI:
https://doi.org/10.22441/jtm.v6i1.1316Abstract
Dalam operasinya, truk tangki yang membawa beban cair memiliki resiko kecelakaan yang tinggi dibandingkan kendaraan yang mengangkut benda padat, mayoritas terguling saat melewati tikungan. Salah satu penyebab utama truk tangki terguling adalah adanya gerak periodik permukaan bebas cairan dalam tangki yang tidak terisi penuh atau yang dikenal dengan sloshing. Besarnya gaya yang timbul akibat gerakkan cairan dan pergeseran koordinat pusat massa cairan yang diangkut mempengaruhi momen guling yang terjadi pada truk tangki. Besarnya momen guling mengakibatkan nilai ambang batas guling atau rollover threshold akan lebih rendah dibandingkan dengan kendaraan dengan muatan padat. Semakin rendah nilai ambang batas guling maka kecenderungan kendaraan untuk terguling akan semakin tinggi. Pelat peredam atau baffle dalam tangki biasa digunakan sebagai cara yang efektif untuk meredam gerakan cairan sehingga momen guling dapat diredam. Penelitian dilakukan dengan simulasi model tangki dengan program komputasi dinamika fluida FLUENT untuk mengetahui posisi baffle yang paling optimal untuk meredam gaya sloshing dan momen guling yang dihasilkan. Simulasi dilakukan pada satu kompartemen tangki penampang oval yang dimodifikasi dengan variasi ketinggian air dalam tangki 30%, 50%, 70% dan 90% dan besar percepatan lateral 0,3g. Desain baffle yang dibandingkan terdiri dari H-V Baffle, Diagonal Baffle, H-V-D Baffle, V-D Baffle, Baffle A dan Baffle B. Dari hasil penelitian diketahui bahwa pelat peredam H-V-D Baffle adalah pelat peredam terbaik untuk truk tangki oval yang dimodifikasi, karena mampu meredam momen guling lebih baik dari pelat peredam lain pada tinggi cairan 30%,70% dan 90%. Pelat peredam V-D Baffle bisa menjadi alternatif, karena dengan jumlah pelat peredam yang lebih sedikit dari H-V-D Baffle, mampu meredam momen guling dengan redaman yang optimal pada semua ketinggian cairan, bahkan redaman momen guling pada tinggi cairan 50% lebih baik dari H-V-D Baffle.Downloads
References
. Billing, J.R., & Patten, J.D. (2006). An Assessment of Tank Truck Roll Stability. Procidings of 9th International Symposium on Heavy Vehicle Weights and Dimensions, IFRTT (pp:1,4 &10). USA.
. Dasgupta, A.(2011). Effect of Tank Cross-Section and Longitudinal Baffles on Transient Liquid Slosh in Partly-Filled Road Tankers. (Master Thesis, Concordia University, Kanada).
Diambil dari http://citeseerx.ist.psu.edu.
. Kang, X., Rakheja, S., & Stiharu, I. (1999). Optimal Tank Geometry to Enhance Static Roll Stability of Partially Filled Tank Vehicles. SAE Technical Paper Series, 1999-01-3730,1-3.
. Kandasamy, T., Rakheja, S., & Ahmed, A.K.W. (2010). An Analysis of Baffles Designs for Limiting Fluid Slosh in Partly Filled Tank Trucks”, The Open Transportation Journal, 4, 23 & 26.
. Koli, G.C., & Kulkarni, V.V. (2010).Simulation of Fluid Sloshing in a Tank.Proceedings of The World Congress On Engineering, Vol. 2 (pp.1). London, UK.
. NZ Transport Agency. (2010). Static Roll Thresholds. Diambil dari website : http://www.nzta.govt.nz/resources/factsheets/13e/
. Ranganathan, R.(1990), “Stability Analysis and Directional Response Characteristics of Heavy Vehicles Carrying Liquid Cargo (Disertasi, Concordia University, Kanada). Diambil dari http://spectrum.library.concordia.ca
. Romero, J.A., Ramirez, O., Fortanell, J.M., Martinez, M., & Lozano, A. (2005). Analysis of Lateral Sloshing Forces Within Road Containers With High Fill Levels. Journal of Automobile Engineer,220,.303-304.
. Tanugula, R. (2001). Effects of Baffles on Damping Lateral Fluid Sloshing Oscillations in Tanker Trucks (Master Thesis, West Virginia University, United States). Diambil dari http://oatd.org/
. Tehrani, K.M. (2005). Analysis of Overturning Moment Caused By Transient Liquid Slosh Inside A Partly Filled Moving Tank. Concordia University Journal, Kanada, 220 (3), 290-291.
Downloads
Published
How to Cite
Issue
Section
License
The copyright to this article is transferred to Universitas Mercu Buana (UMB) if and when the article is accepted for publication. The undersigned hereby transfers any and all rights in and to the paper including without limitation all copyrights to UMB. The undersigned hereby represents and warrants that the paper is original and that he/she is the author of the paper, except for material that is clearly identified as to its original source, with permission notices from the copyright owners where required. The undersigned represents that he/she has the power and authority to make and execute this assignment.
We declare that:
1. This paper has not been published in the same form elsewhere.
2. It will not be submitted anywhere else for publication prior to acceptance/rejection by this Journal.
3. A copyright permission is obtained for materials published elsewhere and which require this permission for reproduction.
Furthermore, I/We hereby transfer the unlimited rights of publication of the above mentioned paper in whole to UMB. The copyright transfer covers the exclusive right to reproduce and distribute the article, including reprints, translations, photographic reproductions, microform, electronic form (offline, online) or any other reproductions of similar nature.
The corresponding author signs for and accepts responsibility for releasing this material on behalf of any and all co-authors. This agreement is to be signed by at least one of the authors who have obtained the assent of the co-author(s) where applicable. After submission of this agreement signed by the corresponding author, changes of authorship or in the order of the authors listed will not be accepted.
Retained Rights/Terms and Conditions
1. Authors retain all proprietary rights in any process, procedure, or article of manufacture described in the Work.
2. Authors may reproduce or authorize others to reproduce the Work or derivative works for the authors personal use or for company use, provided that the source and the UMB copyright notice are indicated, the copies are not used in any way that implies UMB endorsement of a product or service of any employer, and the copies themselves are not offered for sale.
3. Although authors are permitted to re-use all or portions of the Work in other works, this does not include granting third-party requests for reprinting, republishing, or other types of re-use.
This work is also licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
