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Prediksi Umur Lelah Pegas Ulir Suspensi Depan Minibus yang dikemudikan di Atas Permukaan Jalan Datar, Menanjak dan Menurun Berazaskan Pendekatan Strain-Life Azhari; Zainal
Journal of Engineering and Science Vol. 1 No. 2 (2022): July-December 2022
Publisher : Yayasan Kawanad

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56347/jes.v1i2.108

Abstract

This study aims to evaluate the effect of road conditions on the fatigue life of coil springs using the strain life approach. This approach is accomplished by measuring the strain signal in the coil spring at the front of the car with a strain gauge at the component's critical point. Three different types of roads, namely flat roads, uphill roads, and downhill roads were chosen to test the strain signals obtained. After analysis, it was found that the fatigue life of the coil spring on the downhill road had the lowest value of 1.52e+4 cycles before it broke. This value is 54% lower than the fatigue life on flat roads and 96% lower than on uphill roads. This result is due to the braking factor on the way down which puts a higher tension on the coil springs, reducing their fatigue life. This study can contribute to the automotive industry to consider different road conditions in the design and testing of their products, especially in critical components such as coil springs. The strain life approach has also been shown to be effective in evaluating the fatigue life of automobile components, which can help improve vehicle quality and safety.
Prediksi Usia Kelelahan Pegas Ulir dan Lower Suspension Arm Berdasarkan Pendekatan Strain Life Berdasarkan Bentuk Permukaan Jalan Ajinar; Azhari
Journal of Engineering and Science Vol. 1 No. 2 (2022): July-December 2022
Publisher : Yayasan Kawanad

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56347/jes.v1i2.109

Abstract

This study aims to determine the effect of road surface contours on fatigue life of coil springs and lower suspension arm. In this study, strain gauge was affixed to the critical point of the minibus front suspension coil springs based on stress distribution. Strain signal obtained was analyzed using the Coffin-Manson, Morrow, and SWT approaches. From the results of the chemical composition test, it was found that the coil springs were made of SAE 5160 and lower suspension arm made of AISI 1513. From the results of this study it can be concluded that when the vehicle drive on the damaged road, coil spring and lower suspension arm received greater stress so that provide shorter fatigue life. Fatigue life of coil spring on rough roads is 16% lower than city roads and 7% lower than flat roads. Whereas fatigue life of lower suspension arm on rough roads is 27% lower than city roads and 0.03% lower than flat roads. So that the coil spring components fail faster than the lower suspension arm. This is because the contour of the road surface provides a vertical load so that it is in accordance with the function of the coil spring which works to reduce the load vertically while the lower suspension arm function holds the load when turning.
Co-Authors A.A. Ketut Agung Cahyawan W Achmad Sadeli ADI FITRA Agustina, Rahmi Ahmad Fauji, Ahmad Ainol Mardiah Ajinar Almunadiya Amanda, Serli Ayu Amrillah Azrin Ananda, Kelvin Andi Sanjaya Angkat, Firda Amalia Anom Rahargo, Panji Anthonius Ardyani, Ryzki Novica Ashadi Ayu Anora Banurea, Rahmadhani Deassy Siska Deri Maryadi Devie Oktarini Devie Oktarini, Devie Dinda Destari Dzulhijjah Yetti Echeverria, Cristian Zamir Sierra Eddy Kurniawan Elianora - Ermiyati Ervina Dewi, Ervina Erwan Efendi fakhri Gunaika, Raka Gussyafri habibie, indra Hasibuan, Rizki Hamdani Hayatunnufus Haykal, Muhammad Helmiyadi Hendro Ekwarso Hermanto MZ Hilman, Adrian Hulu, Paolinus Indra Syahrul Fuad Iqbal Maulana Ishak Ibrahim Ismayadi Ismed Wijaya Ismuhadi Isna Hayati Isnaini, Sri Wahyuni Iyah Faniyah, Iyah Jarnawi Jarnawi Jayanti, Indah Kamaruddin Karnawi Kamar, Karnawi Khabib Mustofa Khairul Imtihan Khairul Umam Khalsiah Kiki Farida Ferine Lisa Suryani Lukman Hakim M. Nefo Alamsyah, M. Nefo Marpaung, Horas Marpaung, J.L. Marpaung, T.J. Maryadi, Deri Maulida, Dara Maulida, Dara Maulidawati Mawardi Misrah MMSI Irfan ,S. Kom Moulita, R.A Nurul Muhammad Fadhil Muhammad Multazam Muhammad Shalahuddin Muhammad Zikrullah Muhammad Zubaili Muhardi Mukminatun Ardaisi Mukminatun Ardaisy Muntazar Munzaimah Murdani, Khairul Napitupulu, Bonar Bangun Jeppri Nasruddin MN Nasution, Delima Lailan Sari Noer, Zikri Noratul Novan , Andre Novan, Andre Novianti, Yenny Nurasiah Nurkholis Nurmalawati Nuryanti, Yulis Oktarina, Thina Piliang, M.Rifai PO Sianipar, Togar Pratiwi, Rani Ardesi Prayoga, Surya Prayoga, Surya Putra Armidin, Ranu Putri Drissianti R. Yudhistira Adi Seputra S.E., M.M. Rabbani Anugrahrosah, Muhammad Raden Mohamad Herdian Bhakti Radita, Fatrilia Rasyi Rafieq, Muhammad Rahayu, Ririn Rahmad Akbar Rahmati, Ulfa Rahmiatul Aula Ramadhani, Rizka Syahira Raudhatinur Retno Muslinawati Rifki Riyanto, Priyanbudi Ahmad Rizfie, Muhammad Dala Rizka Mulyawan Rizqy Ridho Prakasa Rosa Delima Rusnawati Safridatul Audah Safwan Sakinah Sakti, Tengku Muda Agam Saniah Salsabila Satria Lubis, Andrew SATRIYAS ILYAS Selvia Aprilyanti Senen, Ikram Simorangkir, Yosua Siringoringo, Y.B. Sitti Aminah Sofyan Somakim, Somakim Sri Djuniati Sudiati Sudiyono, Rachma Nadila Suhartono, Bambang Suhartono, Edy Suriyani Suryani, Faizah T. Afriliansyah Tamalika, Tolu Tasyaul Azkia Tengku Muda Agam Sakti Tianusa, Marseilles Tianusad, Marseilles Tolu Tamalika Tulus Ikhsan Nasution Ulfia Veni Aqilla Rizki Widia Tamara Wildan, Siti Win, admin Winanti Wizka Rif'atul Izah Wulan Sari, dessy Yeni Artanti Yules Pramona Yusnidar Zahrani Fadila Zainal Zikrullah, Muhammad ZUBIR Zulfa Salma Fatin Zulfan Zulfitri Zulkifli Nurdin