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All Journal International Journal of Electrical and Computer Engineering Indonesian Journal of Science and Technology Jurnal Teknik Mesin dan Mekatronika (Journal of Mechanical Engineering and Mechatronics) Asean Journal of Science and Engineering (AJSE) Indonesian Journal of Community and Special Needs Education (IJCSNE) Automotive Experiences Journal of Community Services: Sustainability and Empowerment
Farid Triawan
Sampoerna University
Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mechanical Engineering Social Sciences Transportation Other

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Formation control of non-identical multi-agent systems Djati Wibowo Djamari; Muhamad Rausyan Fikri; Bentang Arief Budiman; Farid Triawan
International Journal of Electrical and Computer Engineering (IJECE) Vol 12, No 3: June 2022
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijece.v12i3.pp2721-2732

Abstract

The problem considered in this work is formation control for non-identical linear multi-agent systems (MASs) under a time-varying communication network. The size of the formation is scalable via a scaling factor determined by a leader agent. Past works on scalable formation are limited to identical agents under a fixed communication network. In addition, the formation scaling variable is updated under a leader-follower network. Differently, this work considers a leaderless undirected network in addition to a leader-follower network to update the formation scaling variable. The control law to achieve scalable formation is based on the internal model principle and consensus algorithm. A biased reference output, updated in a distributed manner, is introduced such that each agent tracks a different reference output. Numerical examples show the effectiveness of the proposed method.
The Design and Analysis of a Child Seat for a Motorcycle Ariq Naufal Rabbani; Ken Risa Ayu Ndaru Ningrum; Alvin Widjaya; Farid Triawan
Journal of Mechanical Engineering and Mechatronics Vol 5, No 2 (2020): JOURNAL OF MECHANICAL ENGINEERING AND MECHATRONICS
Publisher : President University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33021/jmem.v5i2.1059

Abstract

This paper discusses the methodology of design and analysis of a child seat for motorcycles. After realizing the dangers of an unrestrained child in motorcycles, this seat offers a solution to the problem. The seat features sliding beams that allow the user to access the under-seat compartment of the motorcycle and the fuel tank, without requiring any disassembly of the child seat. The dimensions are measured and considered when designing in a graphical application. Once the assembly drawing is completed, the seat is analyzed to identify critical parts of the seat to ensure failure does not occur. It is concluded that our design can withstand static loading but is predicted to fail due to fatigue after 81× 103 cycles under the assumption of accelerating from 0 to 50 km/h in 5 seconds. However, since that is not deemed to be fully optimized due to having a finite life, the material and dimensions are changed so that an infinite life can be predicted.
Electric Delta Trike Stability Characteristic and Maneuverability Analysis: Experiment and Multi-Body Dynamic Simulation Ignatius Pulung Nurprasetio; Robby Dwianto Widyantara; Bentang Arief Budiman; Rakshidatu Lestaluhu; Djati Wibowo Djamari; Farid Triawan; Muhammad Aziz
Automotive Experiences Vol 5 No 3 (2022)
Publisher : Automotive Laboratory of Universitas Muhammadiyah Magelang in collaboration with Association of Indonesian Vocational Educators (AIVE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/ae.7070

Abstract

This paper reveals the stability characteristics of an electric-powered delta trike (e-trike), which is developed for goods delivery services. The changeable center of gravity position and weight due to electric component placement and the carried good weight can cause instability of the e-trike. Three main parameters are firstly evaluated on the e-trike: 1) geometry, 2) center of gravity, and 3) stiffness and damping coefficient of the suspensions. Single Lane-Change (SLC) and Double Lane-Change (DLC) tests were then conducted following ISO 14791:2000 and ISO 3888-1:2018 standards, respectively. An e-trike model was created and simulated using SIMPACK, a multi-body dynamic software. The simulation results showed that the developed e-trike model can replicate SLC and DLC tests, indicating the model was valid. A parametric study with the validated model was then conducted with various e-trike weights, center of gravity position, and suspension stiffness and damping ratio values. The results showed additional weight and higher center of gravity position can decrease threshold velocity to avoid rollover. The low suspension stiffness also contributed to lower the threshold velocity. However, the damping coefficient value did not change the threshold velocity significantly. These results can be a guideline in designing a delta trike with better performance in stability and maneuverability.
Motorcycle Child Seat for Child with Special needs: Its Design Process and Problem-based Learning Ihza Lisiano Al Qushai; Arnaz Sholeh; Wahyu Nur Budiarta; Farid Triawan
Indonesian Journal of Community and Special Needs Education Vol 1, No 2 (2021): IJCSNE: September 2021
Publisher : Universitas Pendidikan Indonesia (UPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (768.873 KB) | DOI: 10.17509/ijcsne.v1i2.35142

Abstract

Most of child safety seats for motorcycle available in Indonesian market do not provide enough safety for the children passenger, especially for special needs child. This makes a special needs child cannot ride a motorcycle and prefer to use an automobile for their transportation means. However, it becomes a problem for a low-income family that can only afford a motorcycle. To address this problem, the present work aims to i) design a portable child safety seat for those with special needs that can be placed at the back side of the motorcycle, ii) provide safety feeling to the child by making a capsule-like shape for overall protection, iii) demonstrate an education case-study for mechanical design course. Discussion on how to determine the specification based on problem definition as well as the explanation on the design process of seat’s frame and body are provided. This work can be also used a reference for problem-based learning in mechanical engineering design course.
Foldable Bed Design Concept for COVID-19 Patient: A Machine Design Case Study Laely Muryanti; Laela Nur Fitria; Glenn Hanaya; Farid Triawan
ASEAN Journal of Science and Engineering Vol 1, No 2 (2021): AJSE: September 2021
Publisher : Universitas Pendidikan Indonesia (UPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1878.981 KB) | DOI: 10.17509/ajse.v1i2.35106

Abstract

Coronavirus disease 2019 (COVID-19) has become a serious problem around the world. The pandemic has given several bad impacts, especially in the medical operation. Hospitals are facing problems in which they are lacking the patient bed facility. The objective of this paper is to propose an adjustable medical bed that can be folded as a chair for COVID-19 patients. This foldable bed is employing the hydraulic system as the lifting mechanism. It can raise up from 0.62 to 1 meter height and withstand loads up to 400 kg. Other supporting features and mechanisms will be explained in this paper. Furthermore, the theoretical strength analyses of this proposed design are conducted under the static and fatigue loading. In the static analysis, the safety factor due to the normal and shear stress is 7.5 based on the Maximum Shear Stress failure criterion theorem. Meanwhile, in the fatigue analysis, the safety factor based on the Modified Goodman and ASME-Eliptic criteria are 3.6 and 3.9, respectively. The infinite life of this design is predicted. In addition, this paper is expected to be used as a reference for developing a more reliable design for COVID-19 patients due to lack of bed facilities.
Investigation of Compressive Behavior of Pre-folded Thin-walled Column Fabricated by 3D Printing Farid Triawan; Elin Rachmawati; Bentang Arief Budiman; Djati Wibowo Djamari; Andy Saputro; Ilman Arpi
Indonesian Journal of Science and Technology Vol 6, No 3 (2021): IJOST: VOLUME 6, ISSUE 3, December 2021
Publisher : Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/ijost.v6i3.39138

Abstract

This paper reveals the mechanical behavior of thin-walled columns with pre-folded patterns subjected to compressive loading. The column specimens (Polylactic Acid) are fabricated using Fused Deposition Modeling 3D printer and subjected to quasi-static compressive loading to investigate their mechanical behavior (by modifying the specimens' cross-section patterns and folding angles). The column specimens are simulated by finite element analysis to understand how the stress distribution and local deformation affecting the stiffness, strength, and overall deformation. The experiments showed that introducing the pre-folded pattern in a thin-walled column with different cross-sections can dramatically lower its structural stiffness (85%) and compressive strength (69%), but increase its deformability (115%), which is good agreement with numerical simulation. The variation of cross-section patterns and pre-folding angle could effectively modify the compressive mechanical behavior. Moreover, the results demonstrate how the FDM 3D Printing method can be used in fabricating a thin-walled column with irregular shapes and then to modify its deformability. This finding can be useful for designing any complex structures requiring specific stiffness and deformation such as suspension devices, prosthetic devices in biomechanics, and robotic structures.
Deburring Method of Aluminum Mould Produced by Milling Process for Microfluidic Device Fabrication Kushendarsyah Saptaji; Farid Triawan; Tong Keong Sai; Asmelash Gebremariam
Indonesian Journal of Science and Technology Vol 6, No 1 (2021): IJOST: VOLUME 6, ISSUE 1, April 2021
Publisher : Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/ijost.v6i1.31852

Abstract

The existence of top burrs in micro-scale features produced by milling process can deteriorate the surface quality of a product. Ductile metals, such as aluminum alloys, are prone to suffer from top burrs formation after a slot-milling process. A brief review on the state-of-the-art of burr removal process in micro-scale milling is provided in this paper. Various deburring methods were reportedly able to remove the burrs in micro-scale features, however a much simpler method is still needed. In the present work, a deburring process by stainless steel end brushing is introduced for aluminum mould used in microfluidic device fabrication. The micro-scale features are produced by slot-milling process followed by the deburring process. The deburred moulds are then visually observed using optical microscope and Scanning Electron Microscope (SEM) and the average surface roughness and its features profile are measured using 3D Laser Scanning Confocal Microscope. As a result, the proposed deburring method can successfully remove the top burrs, as indicated by a height reduction of about 21% due to the removal action by the brush. Hence, a burr-free embossing mould with complex shape channel features can be produced by milling and by applying a simple deburring process using stainless steel end brush.
Solar-Powered Highschool Library Information System Design and Implementation Putri Yuni Lestari; Farid Triawan; Tika Endah Lestari; Aditiya Harjon; Idrus Husin Belfaqih; Rafie Djajasoepena; Ammar Ramadhan; Wandy Wandy
Journal of Community Services: Sustainability and Empowerment Vol. 2 No. 02 (2022): September 2022
Publisher : Center for Research and Community Service of Sampoerna University

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

A school library is important in education, especially in high schools to support day-to-day operations. The purpose of this community service is to develop and install a solar-powered Library Information System for the State Highschool No. 6 Cirebon (SMA Negeri 6 Cirebon), Indonesia, in which the existing library operations were done manually. First, for the library database server, a small-size Raspberry Pi is utilized with a SLiMS library automation system installed and run over the school’s local network. Then, a sufficient energy resource is required to run the computer system; in this case, to support running the Raspberry Pi device. For this, a solar panel set-up is installed at the school to generate the electric power as the renewable energy resouce. Packages of solar panels with the battery are easily found in the online Indonesian marketplace, and this made the implementation of solar energy could become faster. In addition, a series of academic seminars is also held to support the library system operation as well as the school teachers.
Introducing Smart Machines Technology and Netiquette for Highschool Students Noorfi Azizah Rahim; Rafie Djajasoepena; Ariana Tulus Purnomo; Iwan Setiawan; Farid Triawan; Muhammad Agni Catur Bhakti; Tika Endah Lestari; Eko Sulistyo; Unang Solihin; Ery Eryanto; Wandy Wandy
Journal of Community Services: Sustainability and Empowerment Vol. 3 No. 02 (2023): September 2023
Publisher : Center for Research and Community Service of Sampoerna University

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Artificial intelligence is evolving and changing what work means in industrial settings. Smart machines are replacing numerous tasks normally done by human workers. Thus, the young generation needs to be prepared and guided, making them aware of what competencies they should acquire before entering the society. The present community service activity aims to communicate the importance of understanding Smart Machines Technology and Netiquette for Highschool-Students in a public senior high school in Cirebon city, namely SMAN 6 Cirebon. A seminar about smart machines and netiquette was conducted. The young generation frequently uses social networking sites to communicate with friends. Ethics in communication must be appropriately implemented in online platforms. In parallel, a digital library system was developed in the school. Literature review, interviews with digital technology professionals, and discussions with school librarians were carried out throughout this community service activity.
Co-Authors Aditiya Harjon Alvin Widjaya Ammar Ramadhan Andy Saputro Ariana Tulus Purnomo Ariq Naufal Rabbani Arnaz Sholeh Asmelash Gebremariam Bentang Arief Budiman Bentang Arief Budiman Djati Wibowo Djamari Djati Wibowo Djamari Eko Sulistyo Elin Rachmawati Ery Eryanto Glenn Hanaya Idrus Husin Belfaqih Ignatius Pulung Nurprasetio Ihza Lisiano Al Qushai Ilman Arpi Iwan Setiawan Ken Risa Ayu Ndaru Ningrum Kushendarsyah Saptaji Laela Nur Fitria Laely Muryanti Muhamad Rausyan Fikri Muhammad Agni Catur Bhakti Muhammad Aziz Noorfi Azizah Rahim Putri Yuni Lestari Rafie Djajasoepena Rakshidatu Lestaluhu Robby Dwianto Widyantara Tika Endah Lestari Tong Keong Sai Unang Solihin Wahyu Nur Budiarta Wandy Wandy Wandy Wandy