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The THE FERFORMANCE ANALYSIS OF ELECTRIC CAR OF THE UNIVERSITY OF MATARAM : THE FERFORMANCE ANALYSIS OF ELECTRIC CAR OF THE UNIVERSITY OF MATARAM Yudhyadi, I Gusti Ngurah Ketut; Pandiatmi, Pandri; Dyah S., Emmy; Alit, Ida Bagus; Sinarep
Energy, Materials and Product Design Vol. 4 No. 1 (2025): Energy, Materials and Product Design
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/empd.v4i1.6342

Abstract

The university of Mataram car suspension and its control was designed to minimize the vibration produced by unwanted external inputs i.e., changes of road contours that reach the car passengers. This effort will provide the passenger with higher safety and comfort. In this study, a quarter car model with two degree of freedoms (2 DOF) was designed and developed its mathematical model. The effects of the road contour were studied and analyzed in term of overshoot and settling time that affect the main body, suspension as well as the passenger. The MATLAB Simulink model was programmed to mimic the behavior of the suspension and its response to the input which was the road contour (step function). This approach was very helpful to reduce the effort, time and money. The result shows that with implementation of the design parameters chose, the responses of the system (displacement and velocities) were satisfied the criteria of comfortable (there are no overshoot), however, the settling time was seconds that much higher than expected which will disturb the passenger comfort. This point shows that the suspension design needs further improvement with consideration of using active suspension with adequate control system.
Pelatihan Bantuan Hidup Dasar bagi Guru Sekolah Menengah di Daerah Pesisir Pulau Lombok Nusa Tenggara Barat Widiastuti, Ida Ayu Eka; Wahyu Sulistya Affarah; Bayu Tirta Dirja; Anom Josafat; Ida Bagus Alit; Vici Muhammad Akbar; Ni Putu Sasmita Lestari; Niko Citami
Jurnal Pengabdian Magister Pendidikan IPA Vol 8 No 4 (2025): Oktober-Desember 2025
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpmpi.v8i4.13429

Abstract

Lombok Island, West Nusa Tenggara, is one of the best tourist destinations in Indonesia. One impact of this is increased activity on the beach and sea, which has the potential to cause emergency conditions and require immediate assistance. Equipping coastal communities with the ability to perform basic life support (BLS) is crucial, including for teachers. The purpose of this activity is to provide participants with knowledge and understanding of the principles of BLS assistance, and participants can provide BLS assistance if they encounter accident/injury victims in the water. This activity was held at the Nipah Community Health Center Hall, Malaka Village, Pemenang District, North Lombok, with a total of 22 high school teachers from Malaka Village participating. The activity was divided into six sessions: pre-test, material delivery, demonstration using mannequins, BLS skills training for participants, discussion and question-and-answer session, and concluded with a post-test. The success of this activity was seen from the increase in post-test scores compared to the pre-test, which was 33.3%. The average pre-test score was 69.55, increasing to 92.73. During the training session, participants enthusiastically practiced the BHD skills that had been previously demonstrated by the presenter and team. This activity needs to be continuously carried out for coastal communities in different locations and targets as an effort to increase the life expectancy for victims who experience respiratory arrest while carrying out activities at sea or on the coast.