Analisis Pengaruh Vibration Isolator Pad Pada Baterai LiFePO4 Terhadap Karakteristik Battery Pack

Amani, Thirafi Hayfla Zata (2025) Analisis Pengaruh Vibration Isolator Pad Pada Baterai LiFePO4 Terhadap Karakteristik Battery Pack. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Peningkatan polusi udara dan komitmen pemerintah terhadap energi terbarukan mendorong peningkatan produksi kendaraan listrik di Indonesia. Battery pack, komponen vital kendaraan listrik, rentan terhadap getaran dinamis yang dapat mengurangi kinerja dan umur pakai. Penggunaan vibration isolator pad menjadi solusi potensial untuk mengurangi dampak getaran ini. Penelitian ini berfokus pada analisis pengaruh penggunaan vibration isolator pad terhadap karakteristik vibrasi battery pack LiFePO4 pada kendaraan listrik, mengingat pentingnya baterai sebagai komponen vital dan tantangan getaran dinamis yang dapat mempengaruhi kinerja dan umur pakainya. Dengan meningkatnya produksi kendaraan listrik di Indonesia sebagai respons terhadap isu polusi udara dan dorongan energi terbarukan, optimasi desain battery pack menjadi hal yang krusial. Metode yang digunakan adalah simulasi numerik dengan perangkat lunak ANSYS, yang mencakup analisis Static Structural, Modal, Harmonic Response, dan PSD Random Vibration. Empat variasi tumpuan diuji: tanpa isolator, serta dengan isolator berbahan polyurethane rubber jenis THM5, THM150, dan THM500. Hasil simulasi menunjukkan bahwa penggunaan isolator pad memang krusial. Analisis Harmonic Response membuktikan bahwa isolator berhasil mengeliminasi puncak resonansi ekstrem (~85 Hz) yang terjadi pada sistem tanpa peredam, di mana variasi THM500 secara konsisten menunjukkan performa terbaik dengan menekan amplitudo deformasi dan percepatan secara paling efektif. Namun, analisis lebih lanjut pada PSD Random Vibration mengungkap kelemahan fundamental: tidak ada variasi isolator pad yang diuji yang mampu memberikan peredaman getaran frekuensi rendah secara efektif. Hasilnya menunjukkan tingkat respons PSD yang tinggi pada frekuensi rendah untuk semua variasi, mengindikasikan bahwa getaran jalan yang paling umum justru tidak terisolasi dengan baik. Disimpulkan bahwa meskipun ada perbedaan performa relatif di antara variasi pad, tidak ada satupun yang memenuhi kriteria sebagai isolator yang ideal untuk aplikasi otomotif, yang menyoroti perlunya eksplorasi material atau desain sistem peredaman yang secara fundamental berbeda.
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Increased air pollution and the government's commitment to renewable energy are driving increased production of electric vehicles in Indonesia. Battery packs, a vital component of electric vehicles, are susceptible to dynamic vibrations that can reduce performance and lifespan. The use of vibration isolator pads is a potential solution to reduce the impact of these vibrations. This research focuses on analyzing the effect of using vibration isolator pads on the vibration characteristics of LiFePO4 battery packs in electric vehicles, given the importance of batteries as vital components and the challenges of dynamic vibrations that can affect their performance and lifespan. With the increasing production of electric vehicles in Indonesia in response to air pollution issues and the push for renewable energy, battery pack design optimization is crucial. The method used is numerical simulation with ANSYS software, which includes Static Structural, Modal, Harmonic Response, and PSD Random Vibration analysis. Four pedestal variations were tested: without isolators, and with isolators made of polyurethane rubber types THM5, THM150, and THM500. Simulation results show that the use of pad isolators is crucial. Harmonic Response analysis proved that the isolators successfully eliminated the extreme resonance peaks (~85 Hz) occurring in the system without dampers, where the THM500 variation consistently performed the best by suppressing the amplitude of deformation and acceleration most effectively. However, further analysis of the Random Vibration PSD revealed a fundamental flaw: none of the pad isolator variations tested were able to provide effective damping of low-frequency vibrations. The results showed high levels of PSD response at low frequencies for all variations, indicating that the most common road vibrations were not well isolated. It was concluded that although there were relative performance differences between the pad variations, none of them met the criteria of being an ideal isolator for automotive applications, highlighting the need for exploration of fundamentally different materials or damping system designs.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	ANSYS, Battery Pack, Electric Vehicle, Kendaraan Listrik, LiFePO4, Pad Isolator, Vibration Simulation, Vibration, Vibrasi.
Subjects:	T Technology > TJ Mechanical engineering and machinery T Technology > TJ Mechanical engineering and machinery > TJ808 Renewable energy sources. Energy harvesting.
Divisions:	Faculty of Industrial Technology and Systems Engineering (INDSYS) > Mechanical Engineering > 21201-(S1) Undergraduate Thesis
Depositing User:	Thirafi Hayfla Zata Amani
Date Deposited:	31 Jul 2025 09:27
Last Modified:	31 Jul 2025 09:27
URI:	http://repository.its.ac.id/id/eprint/124976

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