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All Journal Jurnal Rekayasa Hijau Jurnal Rekayasa Energi dan Mekanika METAL : Jurnal Sistem Mekanik dan Termal
Marsono Marsono
Institut Teknologi Nasional Bandung
Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Control & Systems Engineering Earth & Planetary Sciences Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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Sistem Monitoring Ruang Parkir Kosong Berbasis Sensor Light Dependent Resistor Liman Hartawan; Muhammad Alexin Putera; Marsono Marsono; Stefanus Rewidyo P; Hadi Firdaus
Jurnal Rekayasa Energi dan Mekanika Vol 2, No 1 (2022): JREM
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/JREM.v2i1.34

Abstract

ABTRAK                                                                                                                                    Penggunaan alat transportasi meningkat dengan sangat cepat, salah satunya adalah mobil. Dampak negatif dari perkembangan alat transportasi ini salah satunya adalah kemacetan dimana – mana, termasuk kemacetan didalam tempat parkir terutama dalam mencari lokasi ruang parkir yang kosong. Tujuan dari penelitian ini adalah membangun testbed sistem monitoring ruang parkir kosong untuk mempermudah pengendara dalam mencari ruang parkir kosong dan memperoleh respon sistem yang dibangun. Sistem ini direalisasikan dalam bentuk model. Modul sensor LDR digunakan sebagai pendeteksi kendaraan dan lampu LED hijau sebagai penanda lokasi ruang parkir kosong pada setiap ruang parkirnya, serta dikontrol oleh mikrokontroler Arduino MEGA 2560. Output modul sensor LDR diproses oleh Arduino untuk menampilkan lokasi ruang parkir kosong terdekat pada layar LCD 20x4. Pada layar LCD juga ditampilkan total kendaraan masuk dan sisa ruang parkir kosong yang tersedia. LED pada lokasi ruang parkir kosong terdekat yang ditunjukan akan menyala dan jika ruang parkir yang ditunjukan tidak digunakan, LED akan off dalam 5 menit. Prototipe sensor kendaraan berbasis LDR telah dibangun pada penelitian ini, yang nantinya akan dipasang di tempat parkir yang sebenarnya. Hasil pengujian intensitas cahaya pada ruang parkir menunjukkan rata-rata intensitas cahaya pada tempat parkir basement yang diuji adalah 28 lux. Prototipe sensor kendaraan berbasis LDR yang dibuat, dapat membedakan status gelap dan terang hingga minimal pada kondisi 6 lux, dengan mengubah setting trimmer pada modul LDR yang digunakan. Kata kunci: Model, prototipe, LED, Arduino MEGA 2560, lokasi ABSTRACT The use of transportation is increasing very fast, one of them is cars. One of the negative impacts of the development of this vehicle for transportation is congestion everywhere, including congestion in the parking lot specially to finding the location of available parking space. The purpose of this research is to build a testbed monitoring system for available parking spaces to make it easier for drivers to find available parking spaces and get the response of the system. The purpose of this research is to build model of available parking space monitoring system. LDR sensor module used as a vehicle detector and a green LED light as a marker for the location of available parking spaces in each parking space, and it is controlled by the Arduino MEGA 2560 microcontroller. The output of the LDR sensor module is processed by Arduino to display the location of the nearest empty parking space on the LCD screen 20x4. The LCD screen also displays the total number of incoming vehicles and the remaining available free parking space. The LED at the nearest empty parking space, which indicated by the system, will light up and if the indicated parking space is not being used, the LED will turn off within 5 minutes. Prototype of an LDR-based vehicle sensor has been built in this research, which will be installed in the actual parking space. The results of the light intensity test in the parking space show that the average light intensity in the tested basement parking lot is 28 lux. The LDR-based vehicle sensor prototype has been made, can differentiate dark and light status to a minimum of 6 lux conditions, by adjusting the trimmer setting on the LDR module used. Kata kunci: Model, Prototype, LED, Arduino MEGA 2560, Location
Kaji Eksperimental Sifat Mekanik Honeycomb Sandwich Komposit Serat Karbon dengan Uji Bending Marsono Marsono; Nuha Desi Anggraeni; Fajar Ahmad Faisal
METAL: Jurnal Sistem Mekanik dan Termal Vol 5, No 2 (2021): Jurnal Sistem Mekanik dan Termal (METAL)
Publisher : Department of Mechanical Engineering, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (943.759 KB) | DOI: 10.25077/metal.5.2.114-125.2021

Abstract

A higher energy efficiency in a high efficient energy car can be reached by using a honeycomb sandwich structure that is made from fiber-carbon composite which is lighter in weight. With a lighter weight, a higher power-to-weight ratio can be reached.  In this research, honeycomb sandwich panels are made from fiber-carbon composite and tested to determine their flexural strength and stiffness. These honeycomb sandwich panels are made with varying thickness of core cell wall, which are made by 1 layer and 2 layers of fiber-carbon sheet. Matrix that is used is epoxy resin that is prepared in two methods, with and without heating. The bending test result shows that the highest flexural strength that can be reached is 5.193 kgf/mm2 which is reached by the specimen that has 2 layers’ fiber carbon with heating epoxy resin. Flexural stiffness is also reached by the same specimen, of 67.49 kgf/mm.
Pembuatan dan Pengujian Panel Honeycomb Sandwich dengan Inti Berbentuk Gelombang Berbahan Komposit Serat Bambu Marsono Marsono; Sarah Fauziyyah Hanifa; Faizal Akbar
Rekayasa Hijau : Jurnal Teknologi Ramah Lingkungan Vol 5, No 2 (2021)
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/jrh.v5i2.165-177

Abstract

ABSTRAKDalam penelitian ini, komposit serat bambu dibuat menjadi panel struktur honeycomb sandwich dan diuji untuk mengukur kemungkinan pemanfaatannya sebagai bahan untuk membuat sudu turbin angin sumbu vertical. Honeycomb sanwich serat bambu yang dibuat memiliki inti (core) yang berbentuk gelombang sinus pada arah memanjang panel. Sebagai pengikat pada komposit ini digunakan resin polyester. Panel honeycomb sandwich yang dibuat memiliki panjang 500mm dan lebar 200mm, sedangkan tebal panel dibuat dengan  dua variasi, yaitu dengan tinggi inti honeycomb 12mm dan  17mm. Panel honeycomb sandwich ini diuji dengan uji bending untuk mendapatkan angka kekuatan lentur (flexural strength) dan angka kekakuan (stiffness). Dari tiga panel yang dibuat identik untuk masih-masing ketinggian inti honeycomb, diperoleh angka kekuatan lentur dan kekakuan terbesar pada panel dengan ketinggian inti honeycomb17mm, yaitu dengan angka kekuatan lentur 0,91kg/mm2 dan angka kekakuan 11,35kg/mmKata kunci: honeycomb sandwich, komposit serat bambu,gelombang sinus,kekuatan lentur, kekakuan.  ABSTRACTIn this research, bamboo fiber composite are made into honeycomb sandwich structure panel and to be tested for its ability as a material for vertical axis wind turbine blades. Bamboo fiber honeycomb sandwich had a sinusoidal-shaped core in the longitudinal direction of the panel. Polyester resin was used as a binder on this composite. The honeycomb panels that have been made have a length of 500mm and a width of 200mm. The thickness of the panels was made of two variations, which was has 12mm and 17mm honeycomb core-height. The honeycomb sandwich panel was tested by bending test to obtain flexural strength and stiffness. From the three panels that have been made in identical dimension for each honeycomb core-height, the highest flexural strength and stiffness was obtained in the specimen with the honeycomb core-height of 17mm, with a flexural strength of 0,91kg/mm2 and astiffness of 11,35kg/mm. Keywords: honeycomb sandwich, bamboo fiber composite, sinusoidal wave,  flexurall strength, stiffness.
Static Analysis of Tubular Space Frame Chassis of an Electric Racing Car Made of ASTM A106 Grade B Encu Saefudin; Nuha Desi Anggraeni; Marsono Marsono; Syauqi Azhari
METAL: Jurnal Sistem Mekanik dan Termal Vol 7, No 1 (2023): Jurnal Sistem Mekanik dan Termal (METAL)
Publisher : Department of Mechanical Engineering, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/metal.7.1.15-22.2023

Abstract

The chassis is a vital component in electric vehicles, which can keep the car rigid and robust to support the load on it. In this research, the chassis is designed for electric vehicles with sufficient strength and rigidity, as well as light in weight and safety according to KMLI regulations, to be used in student racing competitions. The design process is begun with chassis space frame determination and weight and position definition of all components to be installed on the chassis. Then calculate the centre of gravity and the reaction force at the mounting supports on each wheel. The chassis design has a length of 2300mm, a width of 1100mm and a height of 1100 mm. This chassis is made using ASTM A106 Grade B steel pipe with a diameter of 1 inch, and the total weight is 76.5 kg. The analysis was carried out statically using Solidwork. The static study showed maximum stress of 22.06 MPa, a maximum deflection of 0.346 mm, and a minimum safety factor of 10.9. All the parameters show promising results, strength, stiffness, and safety in compliance with KMLI regulations
Kaji Eksperimental Kekakuan Sasis Mobil Listrik KMLI Jenis Tubular Space Frame Alif Muhammad Faris; Marsono Marsono; Muhammad Azis Mahardhika
Jurnal Rekayasa Energi dan Mekanika Vol 3, No 1 (2023): JREM
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/JREM.v3i1.45

Abstract

ABSTRAK Rangka atau sasis adalah bagian penting dari sebuah kendaraan yang memiliki fungsi untuk menopang semua beban, mulai dari sistem penggerak, sistem kemudi, sistem suspensi, rakitan gandar, sistem pengereman hingga penumpang dan bagasi. Sasis harus bisa menjaga semua komponen yang bertumpu di atasnya tetap berada pada dudukannya. Sasis harus mampu memberikan kekuatan, fleksibilitas, dan stabilitas kendaraan dalam berbagai kondisi operasi. Sasis juga harus mampu memiliki kekakuan terhadap beban bending maupun torsi yang serta harus sangat handal dan memberikan keamanan kepada penumpangnya.  Dalam penelitian ini, dibuat sasis mobil listrik tipe tubular space frame untuk Kompetisi Mobil Listrik Indonesia (KMLI). Bahan yang digunakan adalah pipa baja UOE dengan diameter 1 inci. Sasis ini selanjutnya diuji dengan metode uji bending untuk mengetahui kekakuannya. Dari proses pembuatan didapatkan sasis yang memiliki dimensi sesuai dengan rancangan yang telah dibuat pada penelitian sebelumnya. Sedangkan dari pengujian bending yang telah dilakukan, diketahui bahwa defleksi terbesar yang terjadi adalah 3,2 mm pada beban 125 kg. Dan dari hasil perhitungan diperoleh angka kekakuan sasis adalah  41,66 kg/mm. Kata kunci: sasis, tubular space frame, pengelasan, kekakuan. ABSTRACT Chassis is an automotive component that functions to support all loads, starts from the traction system, steering system, suspension system, axle assembly, braking system, and also passengers and luggage. The chassis must also be able to ensure that all components stick on it are in the correct position. The chassis must be able to provide the strength, flexibility and stability of the vehicle under various operating conditions. The chassis must also be able to have rigidity against the bending and torsional loads and must be very reliable and provide security to the passengers. In this research, a tubular space frame type electric car chassis was made for the Indonesian Electric Car Competition (KMLI). The material used is UOE steel pipe with a diameter of 1 inch. This chassis was then tested using the bending test method to determine its stiffness. From the manufacturing process that has been carried out, it is obtained a chassis that has dimensions in accordance with the design that has been made in previous studies. From the bending tests that have been carried out, it is known that the largest deflection that occurs was 3.2 mm at a load of 125 kg. And from the calculation it is known that the chassis stiffness was 41.66 kg/mm. Keywords: Chassis, tubular space frame, welding process, stiffness.
Pengujian Crashworthiness Honeycomb Sandwich Dengan Variasi Jumlah Lapisan Inti Menggunakan Software Ansys Marsono Marsono; Mochamad Rafli Januarizki; Muhammad Luthfi Rasyad; Erika Rachmadini; Ghazi Ahmad Ghifari
Jurnal Rekayasa Energi dan Mekanika Vol 3, No 2 (2023): JREM
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/JREM.v3i2.125

Abstract

ABSTRAKCrashworthiness dapat diartikan sebagai kemampuan dari suatu material untuk bertahan dari kehancuran yang berkelanjutan serta mempertahankan beberapa bagian material setelah terjadinya tumbukan. Telah banyak penelitian yang menunjukkan bahwa material dengan struktur honeycomb sandwich memiliki sifat crasworthiness yanga baik. Komposit bermatriks polimer (PMC) adalah material yang sangat sesuai untuk pembuatan honeycomb sandwich structure karena memiliki sifat yang ulet dan ringan. Kedua sifat ini akan menghasilkan material yang memiliki sifat crahworthiness yang baik dengan bobot yang ringan. Dalam penelitian ini dilakukan simulasi dengan software Ansys untuk mendapatkan sifat crashworthiness dari specimen material dengan stuktur honeycomb sandwich dengan tiga variasi lapisan inti honeycomb, yaitu 1 lapisan inti, 2 lapisan inti dan 3 lapisan inti. Ketiga variasi specimen dibuat dengan bahan komposit fibreglass. Metoda pengujian yang disimulasikan dalam software adalah metoda vertical drop test. Parameter crashworthiness yang ingin didapatkan adalah defleksi maksimum yang terjadi dan energi maksimum yang dapat diserap oleh material dengan struktur honeycomb sandwich. Performa terbaik ditunjukkan oleh specimen dengan 3 lapisan inti dengan defleksi terkecil, yaitu sebesar  3,83 mm dengan waktu 0,0015 detik, dan serapan energy terbesar, yaitu sebesar 125,62 Joule dalam waktu 0,0015 detik.  Kata kunci : Honeycomb sandwich, crashworthiness, komposit fiberglass, defleksi, energiABSTRACTCrashworthiness can be defined as the ability of a material to withstand continued destruction as well as retaining some parts of the material after a collision. Many studies have shown that material with a honeycomb sandwich structure have good crashworthiness properties. Polimer matrix composite is suitable for aking honeycomb sandwich structure because it has ductile properties and linght in weight. Both properties are perfect for obtaining material with good crashworthiness properties and light in weight. In this research, simulations were carried out using Ansys software to obtain the crashworthinesss properties of material with a honeycomb sandwich structure with three variations of honeycomb core, namely 1core lyer, 2 core layers and 3 core layers. The specimens with three variations were made with fiberglass composite material. The testing method that was simulated in the software is the vertical drop test method. The crasjworthiness to be obtained are the maximum deflection that occurs and the maximumenergy that can be absorb by a material with a honecomb sandwich structure. The best performance was shown by the specimen with 3 core layer with the smallest deflectrion of 3.83mm and thelargest energy absorbtion of 125.62 Joulein 0.0015 seconds    Keywords: Honeycomb sandwich, crashworthiness, fiberglass composite, deflection, energy.
Co-Authors Alif Muhammad Faris Anggraeni, Nuha Desi Encu Saefudin Erika Rachmadini Faizal Akbar Fajar Ahmad Faisal Ghazi Ahmad Ghifari Hadi Firdaus Hartawan, Liman Mochamad Rafli Januarizki Muhammad Alexin Putera Muhammad Azis Mahardhika Muhammad Luthfi Rasyad Sarah Fauziyyah Hanifa Stefanus Rewidyo P Syauqi Azhari