Rahman, Raditya (2024) Desain dan Analisis Respon Dinamis pada Sistem Suspensi Baterai Kendaraan Listrik dengan Menggunakan Helical Wire Rope Isolator. Other thesis, Institut Teknologi Sepuluh Nopember.
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5007201131-Undergraduate_Thesis.pdf - Accepted Version Restricted to Repository staff only until 1 October 2026. Download (6MB) | Request a copy |
Abstract
Saat ini, perkembangan kendaraan listrik di Indonesia berkembang sangat pesat. Data Kementerian Perindustrian Indonesia mencatat bahwa populasi kendaraan bermotor listrik dan mobil listrik berbasis baterai (KBLBB) meningkat pesat pada tahun 2023. Profil jalanan yang keras dan tidak menentu di mana kendaraan ini beroperasi menyebabkan unit baterai terkena getaran dan guncangan signifikan, yang dapat mengakibatkan kerusakan dan malfungsi baterai. Mengingat paket baterai ini sangat mahal dan sering mengalami kerusakan, penting untuk memanfaatkan sistem suspensi untuk mengurangi efek getaran. Pada penelitian tugas akhir ini, dilakukan vibration test melalui harmonic response analysis untuk mendapatkan respon dinamis pada sistem suspensi battery pack. Penelitian menggunakan model helical wire rope isolator dengan spesifikasi WRS8, WRS12, dan WRS16, yang diadopsi dari katalog perusahaan Ace Control Equipment. Penelitian ini memanfaatkan SolidWorks 2020 untuk membuat model desain sistem suspensi dan ANSYS Workbench 2022 R1 untuk melakukan pengujian. Pengujian meliputi static structural untuk pembebanan statis yang menghasilkan nilai equivalent stress von-Mises, modal analysis untuk mengetahui frekuensi natural dan mode shape, serta harmonic response analysis untuk memahami pembebanan dinamis dan mendapatkan grafik frequency response berupa amplitude deformation, acceleration. Hasil dari harmonic response analysis menunjukkan frekuensi resonansi dari setiap variasi model sistem suspensi. Model sistem suspensi yang menggunakan WRS8 beresonansi pada 26 Hz, WRS12 pada 59 Hz, dan WRS16 pada 82 Hz. WRS12 memiliki nilai amplitudo percepatan yang paling rendah daripada variasi model lainnya, kecuali pada kondisi 3. Pada analisa grafik time domain dan perhitungan root mean square menunjukkan bahwa WRS12 memiliki penurunan amplitudo yang cepat dan minim osilasi residu setelah redaman dan memiliki nilai RMS yang paling kecil daripada variasi model lainnya, dengan nilai RMS pada kondisi 1 sebesar 42.2773 mm/s², kondisi 2 sebesar 2.7329 mm/s², dan kondisi 3 sebesar 48.8847 mm/s². Maka dari itu dapat disimpulkan bahwa penggunaan WRS12 untuk sistem suspensi battery pack sesuai dengan model penelitian ini adalah spesifikasi terbaik dalam meredam getaran battery pack.
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Currently, the development of electric vehicles in Indonesia is growing rapidly. Data from the Indonesian Ministry of Industry shows that the population of electric motor vehicles and battery-based electric cars increased significantly in 2023. The rough and unpredictable road conditions where these vehicles operate cause the battery unit to be subjected to significant vibrations and shocks, which can result in battery damage and malfunction. Given that these battery packs are very expensive and frequently experience damage, it is essential to utilize a suspension system to reduce the effects of vibration. In this final project, a vibration test was conducted through harmonic response analysis to obtain the dynamic response of the battery pack suspension system. The study used a model of helical wire rope isolators with specifications WRS8, WRS12, and WRS16, which were adopted from the Ace Control Equipment catalog. This research utilized SolidWorks 2020 to create the suspension system design model and ANSYS Workbench 2022 R1 for testing. The testing included static structural analysis for static loading, resulting in equivalent von Mises stress values, modal analysis to determine the natural frequency and mode shapes, as well as harmonic response analysis to understand dynamic loading and obtain frequency response graphs in the form of amplitude deformation and acceleration. The results from the harmonic response analysis showed the resonance frequencies of each variation of the suspension system model. The suspension system model using WRS8 resonated at 26 Hz, WRS12 at 59 Hz, and WRS16 at 82 Hz. WRS12 had the lowest acceleration amplitude compared to the other model variations, except in condition 3. The time domain graph analysis and root mean square calculations showed that WRS12 exhibited a rapid amplitude reduction with minimal residual oscillation after damping and had the smallest RMS value among the model variations, with RMS values of 42.2773 mm/s² in condition 1, 2.7329 mm/s² in condition 2, and 48.8847 mm/s² in condition 3. Therefore, it can be concluded that the use of WRS12 for the battery pack suspension system according to this research model is the best specification for damping the vibrations of the battery pack.
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