Herdiansyah, Arfielda (2024) Simulasi dan Analisis Material Insulasi Tambahan Panel Lantai Kereta Api Berbahan Serat Alami pada Nilai Rugi Transmisi Bunyi Menggunakan Software ANSYS. Other thesis, Institut Teknologi Sepuluh Nopember.
![[thumbnail of 5001201020-Undergraduate_Thesis.pdf]](http://repository.its.ac.id/style/images/fileicons/text.png) |
Text
5001201020-Undergraduate_Thesis.pdf - Accepted Version Restricted to Repository staff only until 1 October 2026. Download (5MB) | Request a copy |
Abstract
Sumber kebisingan yang dirasakan oleh penumpang kereta api salah satunya berasal pada lantai gerbong penumpang, dimana bunyi gesekan roda dan rel kereta yang melaju mengurangi kenyamanan saat durasi perjalanan cukup lama. Pada penelitian ini dilakukan simulasi penambahan material insulasi berbahan serat alami seperti sekam padi, sabut kelapa, dan rami dengan variasi susunan panel lantai yang dapat mereduksi kebisingan di dalam gerbong kereta api. Proses simulasi untuk mengevaluasi pengaruh penambahan serat alami menggunakan metode finite element analysis (FEA) pada software ANSYS Harmonic Acoustic dengan memasukkan parameter data material yaitu densitas, modulus young, dan rasio passion. Selain itu, analisis tingkat tekanan bunyi, analisis tegangan-regangan dengan deformasi total panel, dan hasil perbandingan pada simulasi dan pengujian eksperimental juga telah dilakukan. Untuk mendapatkan pemahaman yang lebih baik mengenai transmission loss, simulasi dilakukan pada rentang frekuensi antara 125 hingga 4000 Hz. Hasil simulasi menunjukkan penambahan material serat alami sabut kelapa pada susunan panel lantai memiliki kemampuan yang lebih baik dalam mereduksi bunyi pada frekuensi rendah 125 Hz dan 160 Hz yaitu 19,03 dB dan 21,15 dB; sedangkan sekam padi sangat baik untuk mereduksi bunyi pada frekuensi tinggi 4000 Hz yaitu 48,55 dB; dan serat rami yang stabil pada rentang frekuensi keseluruhan 125 hingga 4000 Hz yaitu 18,93 hingga 48,85 dB.
========================================================================================================================
The source of noise perceived by train passengers is one that comes from the floor of the passenger carriage, where the sound of the friction of the wheels and the railroad that moves diminishes comfort during the duration is quite long. The study simulated the addition of insulation materials made from natural fibers such as rice husks, coconut fiber and ramie with variations of floor panels arrangement that can reduce noise inside the train wagon. The simulation process to evaluate the influence of natural fiber addition using the finite element analysis (FEA) method in ANSYS Harmonic Acoustic software by entering material data parameters such as density, young module, and passion ratio. In addition, sound pressure level analysis, stress-strain analysis with total panel deformation, and comparison results on simulations and experimental tests have also been performed. To gain a better understanding of transmission loss, the simulation was carried out in the frequency range between 125 and 4000 Hz. The simulation results show that the addition of natural coconut fiber material to the floor panel arrangement has a better ability to reduce sound at low frequencies of 125 Hz and 160 Hz, namely 19.03 dB and 21.15 dB; while rice husks are very good for reducing sound at high frequencies of 4000 Hz, namely 48.55 dB; and hemp fibers are stable in the overall frequency range of 125 to 4000 Hz, namely 18.93 to 48.85 dB.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | ANSYS, Kebisingan, Serat Alami, Transmission Loss. ANSYS, Natural Fiber, Noise, Transmission Loss. |
| Subjects: | Q Science > QC Physics > QC173.4.C63 Composite materials Q Science > QC Physics > QC221 Acoustics. Sound T Technology > T Technology (General) > T57.62 Simulation T Technology > T Technology (General) > T58.8 Productivity. Efficiency T Technology > TF Railroad engineering and operation > TF1327.O58 High speed ground transportation (train) T Technology > TF Railroad engineering and operation > TF240 Railway construction |
| Divisions: | Faculty of Science and Data Analytics (SCIENTICS) > Physics > 45201-(S1) Undergraduate Thesis |
| Depositing User: | Arfielda Putri Herdiansyah |
| Date Deposited: | 12 Aug 2024 08:18 |
| Last Modified: | 12 Aug 2024 08:18 |
| URI: | http://repository.its.ac.id/id/eprint/113942 |
Actions (login required)
 |
View Item |