Pemodelan Sistem Suspensi Pasif dan Semi Aktif Regeneratif dengan Model Half Car dan Eksitasi Harmonik

Avicenna AnNizhami, Nanang Apriandi, Padang Yanuar, Wahyu Isti Nugroho

Abstract


Penelitian ini berdasarkan pada banyaknya energi yang terbuang pada kendaraan roda empat. Pemanfatan energi yang terbuang dilakukan dengan cara mengganti peredam konvensional menjadi peredam regeneratif. Tujuan dari penelitian ini adalah memodelkan dan menganalisa dinamika gerak kendaraan roda empat dan potensi energi yang dapat dimanfaatkan akibat getaran vertikal. Model half car diimplementasi dan sistem suspensi dimodelkan sebagai pegas dan peredam. Sistem suspensi semi aktif mengimplementasikan model skyhook dengan mengubah peredam menjadi peredam adaptif. Hasil validasi mengindikasikan bahwa simulasi dapat dengan akuran memodelkan dinamika gerak kendaraan dengan eksitasi harmonik. Hasil dari simulasi dianalisa dalam domain waktu dan frekuensi. Respon gerak dalam domain waktu untuk suspensi semi aktif dibandingkan dengan suspensi pasif pada frekuensi 3[Hz] menunjukkan penurunan perpindahan 40,71% dan percepatan 43,43%. Terdapat peningkatan respon potensi daya yang dimanfaatkan sebesar 78%. Respon perpindahan, percepatan dan potensi daya dalam domain frekuensi menunjukkan hasil yang lebih baik pada suspensi semi aktif terutama pada frekuensi lebih dari 6[Hz].

Keywords


pasif suspension; semi active suspension; regenerative shock absorber; vertical vibration; adaptive shock absoreber

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DOI: http://dx.doi.org/10.32497/jrm.v17i2.3720

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