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All Journal Jurnal Energi Dan Manufaktur Jurnal Pendidikan Teknik Mesin Jurnal Inovator Majamecha J-Proteksion: Jurnal Kajian Ilmiah dan Teknologi Teknik Mesin Otopro Jurnal Pendidikan Teknik Mesin Undiksha Quantum Teknika International Journal of Mechanical Engineering Technologies and Applications (MECHTA) al-fikrah: Jurnal Manajemen Pendidikan Nusantara of Engineering (NOE) Journal of The Indonesian Society of Integrated Chemistry J-Proteksion : Jurnal Kajian Ilmiah dan Teknologi Teknik Mesin
I Gede Wiratmaja
Universitas Pendidikan Ganesha
Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Other

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Journal : Otopro

 1 
REDESAIN BODI SEPEDA MOTOR LISTRIK BABY GANESHA 1.0 GENERASI II DAN PENGARUHNYA TERHADAP PENURUNAN COEFFICIENT OF DRAG Muhammad Khoirul Makhbub; I Gede Wiratmaja; Kadek Rihendra Dantes
Otopro Vol 17 No 2 Mei 2022
Publisher : Jurusan Teknik Mesin Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/otopro.v17n2.p62-68

Abstract

The aerodynamic aspect is an aspect that really considers the force generated by the fluid flow which has an impact on performance and energy consumption while driving. The purpose of this research is to modify the standard design of the baby ganesha 1.0 generation II electric motorcycle so that it gets a design with a smaller coefficient of drag. The need for fluid flow simulation analysis To determine the coefficient of drag, one way of simulation analysis is to use solidwork, solidworks is known to have the speed and accuracy required for a successful analysis. The conceptual research paradigm R2D2 (Reflective, Recursive, Design and Development) is used to conduct research and development. Development (R&D). After the fluid flow analysis process was carried out, it was found that the modified body design of 2 baby Ganesha 1.0 generation II electric motorcycles obtained a Coeficient Of Drag of 0.0372 lower than the standard body design of Baby Ganesha 1.0 generation II electric motorcycles which only had a coefficient value. of drag is 0.0433. Through expert judgment, the modified design of 2 Baby Ganesha 1.0 generation II electric motorcycles received a percentage with a value of 82% with good qualifications.
ANALISIS TEGANGAN STATIK DAN DEFORMASI FRAME ELECTRIC GANESHA SCOOTER PORTABLE (E-GASPOL) MENGGUNAKAN SOFTWARE SOLIDWORKS I Gede Wiratmaja; Nyoman Arya Wigraha; Komang Purnayasa
Otopro Vol 19 No 1 Nov 2023
Publisher : Jurusan Teknik Mesin Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/otopro.v19n1.p8-17

Abstract

This study aims to determine and reduce static stress and increase the safety factor on the E-GASPOL vehicle frame. The type of development research used is the R2D2 type (Reflective, Recursive, Design and Development) which has three phases, namely defining, design and development and dissemination. The data analysis technique used is the finite element method, this method can solve static, dynamic, linear and non-linear problems. In this study, the static stress analysis of vehicle frame was carried out in conditions without rider load (the mass of the frame itself is 13.34 kg) and conditions with rider load (frame mass of 13.34 kg + average rider mass of 70 kg, so the total is 83.34 kg). The static stress analysis results on the four designs, the results of the modified vehicle frame design 3 have the best value, namely obtaining a maximum stress value of 1,255xN/m conditions without rider load, this result gets a decrease of 58.55% from the standard design and with a rider load of 7,699xN/m, this result gets a decrease of 58.56% from the standard design, the smaller the stress value obtained on a frame. The maximum displacement/deformation value of 1,453xmm conditions without rider load, this result gets a decrease of 77.718% from the standard design and with a rider load of 8,791xmm, this result gets a decrease of 78.10% from the standard design. From the data it can be concluded that the modified frame is better and stronger than the standard frame.
ANALISIS KEKUATAN IMPACT KOMPOSIT POLYESTER BERPENGUAT SERBUK KAYU JATI DENGAN VARIASI FRAKSI VOLUME MATRIKS DAN REINFORCEMENT Ariantika, Kadek; Wiratmaja, I Gede; Nugraha, I Nyoman Pasek
Otopro Vol 19 No 2 Mei 2024
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/otopro.v19n2.p50-54

Abstract

The biggest problem facing the automotive industry today is limited natural resources and environmental protection. Therefore, it is very important to conduct and carry out research and mapping of alternative materials that can reduce the use of non-renewable materials. The aim of this research is to determine the effect of variations in the volume of teak wood powder on the impact strength of composites with a polyester polymer matrix and identify fracture patterns. This research uses an experimental design combined with one-way statistical analysis of variance to test the research hypothesis. The results showed that there were significant differences in impact strength between the variations of the three specimens tested. Specimens with variations in volume fraction of 20%:80% for teak wood powder and polyester resin have the highest impact strength, while specimens with variations in volume fraction of 30%:70% for teak wood powder and polyester resin have the lowest impact strength. Apart from that, examination of the microscopic structure of the fracture patterns shows differences in fracture patterns between specimens. Specimens with variations in volume fraction of 0% (100% polyester resin) show a brittle fracture mechanism, while specimens of 10%:90%, 20%:80%, 30%:70% for teak wood powder and polyester resin show that the fracture pattern that appears is a combination of fragility and fibular fracture which is also called a fibrous fracture.
Co-Authors Alfian, Handi Ardika Yasa, Gede Dyo ari pradnyana, suta Ariantika, Kadek Arifudin, Andi Arnawa, I Komang Gede Artha, Edy Agus Juny Arya Wiguna, I putu A’an Adji Ahmad Sya’bani Batistuta, Andreas Buddhi Satya Utama Budiastawan, Ngurah Putu Darmawan, Gede Dharmawan, I Made jati Elisa, Edi Gede Widayana Gede Widayana Hafid Ramadhan I Gede Ari Saputra I Gede Made Aditya Tresnajaya I Gusti Bagus Wijaya Kusuma I Nyoman Pasek Nugraha I Nyoman Suprapta Winaya I Putu Arya Wiguna I Wayan Wismantarayasa Kadek Rihendra Dantes Komang Adhi Indrawan Saputra Komang Purnayasa Komang Purnayasa Kusumayani, Ni Made Novia Made Agus Suardana Pinatih Mahayoga, I Kadek Alit Mahendra , Putu Gede Widhi Mardhotillah, Bunga Muhammad Khoirul Makhbub Ngurah Putu Putra Adnyana Nyoman Arya Wigraha Pranata, I Wayan Dwi Eka Purnayasa, Komang Putra, Anak Agung Gede Windhu Gandhi Ryan Pratama Putra, Ryan Pratama Saputra, Komang Adhi Indrawan Wayan Wismantarayasa, I Widiadnyana, I Wayan Bayu Wiguna, I Putu Arya Wijaya, Hardian Putra Wismantarayasa, I Wayan Zurweni Zurweni