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All Journal Rotasi Sinergi Jurnal Teknik Mesin Jurnal Mantik International Journal of Electrical, Energy and Power System Engineering (IJEEPSE) Indonesian Journal of Computing, Engineering, and Design Journal of Community Services: Sustainability and Empowerment
Muchamad Oktaviandri
Universitas Pembangunan Nasional Veteran Jakarta, Indonesia
Aerospace Engineering Arts Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mechanical Engineering Social Sciences Other

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Design and Fabrication of Customized Ais Kacang Vending Machine Muchamad Oktaviandri; D.K. A V Paramasivam
Indonesian Journal of Computing, Engineering, and Design (IJoCED) Vol. 2 No. 1 (2020): IJoCED
Publisher : Faculty of Engineering and Technology, Sampoerna University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35806/ijoced.v2i1.100

Abstract

Nowadays, machines play a critical role as those machines are broadly utilized in various subjects. The contribution of machines is swiftly growing day by day as they are starting to replace humans in everyday tasks. The machine is also used for the food and beverage industry to deliver the products easily and conveniently to customers. This paper focuses on the design and fabrication of the customized Ais Kacang vending machine for canteen, cafeteria and restaurant usage. There were five designs made and one best conceptual design was selected by using a ranking method. In addition, this paper explains the stress and strain analyses of the internal frame of the vending machine. The Ais Kacang vending machine has been undergone two tests, the geometrical and final product tests. The selected machine was able to produce a plate of Ais Kacang in 66 seconds using auto mode. However, the time needed to produce a plate of Ais Kacang in manual mode depended on the user.
Design and Fabrication of Meat Shredder Machine Using VDI2221 Approach Muchamad Oktaviandri; Ng Siew Kian
Indonesian Journal of Computing, Engineering, and Design (IJoCED) Vol. 3 No. 2 (2021): IJoCED
Publisher : Faculty of Engineering and Technology, Sampoerna University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (771.703 KB) | DOI: 10.35806/ijoced.v3i2.150

Abstract

Shredded meat is more palatable to the taste of consumer and preparing shredded meat in a large scale requires the aid of meat shredder machine. This paper presents a detailed design procedure of a meat shredder machine developed by the VDI2221 approach. This paper also elaborates on the design of each part of the machine which includes selecting the components of the cutting and transmission system, kinematic arrangement of forces, material selection on the machine and proportion of parts to ensure the maximum strength and functionality of the machine. Further, the design of the various parts of the machine in 3D model and machine fabrication are discussed, along with the testing on the function and geometric aspects to ensure the efficiency of the machine. This study developed a meat shredder machine with 0.5 Hp electric motor and capacity of 2 kg per hour.
Agricultural monitoring system using esp32 microcontroller with IOT-Based LORA transmission Achmad Zuchriadi; Fajar Rahayu; Silvia Anggraeni; Muhamad Alif Razi; Muchamad Oktaviandri; Irga Irga
Jurnal Mantik Vol. 7 No. 2 (2023): Agustus: Manajemen, Teknologi Informatika dan Komunikasi (Mantik)
Publisher : Institute of Computer Science (IOCS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35335/mantik.v7i2.3823

Abstract

Smart farming is an agricultural management plan based on precise monitoring and calculation of agricultural parameters that are useful as a reference in taking appropriate actions. The application of Smart Farming is inseparable from the IoT system that supports processing and data collection. Remote large agricultural area, far from the public, limited access to electricity and difficult cellular network access. Responding to this, this research designed an IoT-based agricultural monitoring system by implementing the ESP 32 microcontroller and LoRa Transmission which uses solar panels as a power supply and is displayed via the Web Server Dashboard. Tests are carried out in the form of sensor readings, dashboard displays, and data transmission. The results obtained are that the agricultural monitoring system design works well with the sensors used to work and the ESP32 microcontroller to process data. LoRa and Internet data transmission can be sent properly indicated by synchronous data access. The monitoring dashboard can work properly as shown by the appropriate home page and graphic page.
Performance Test of Input Mechanisms on Cardboard Folding Machine System Pasha, Mohraffi Azura; Oktaviandri, Muchamad; Martana, Budhi
ROTASI Vol 26, No 3 (2024): VOLUME 26, NOMOR 3, JULI 2024
Publisher : Departemen Teknik Mesin, Fakultas Teknik, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/rotasi.26.3.65-71

Abstract

The packaging industry has experienced significant global growth, driven by increasing demand for cardboard packaging and the rising volume of packaging waste. This growth highlights the industry's need to enhance efficiency and effectiveness in production processes. Manual handling of cardboard sheets for folding and stacking is time-consuming, necessitating the development of automated solutions. This study introduces the cardboard folding machine, designed and fabricated by mechanical engineering students at UPN Veteran Jakarta. The machine comprises three main mechanisms: the input mechanism, the conveyor for folding cardboard sheets, and the output mechanism. To optimize production, performance testing is conducted to identify the most efficient speed settings to achieve maximum cardboard folding output. This testing also aims to promote the machine as a practical tool for potential users in the packaging industry. Previous research has explored various mechanisms for handling cardboard, including friction systems, slider systems, and vacuum systems. Each approach offers distinct advantages and challenges. By addressing these issues, the cardboard folding machine aims to improve production reliability in alignment with the needs of potential users. The results of this study delineate the advantages and disadvantages inherent to both friction and slider mechanisms. These results can be utilized to tailor the mechanisms according to the preferences of prospective users.
PID Controller for Optimum Energy Efficiency in Air-Conditioner Shahir, Ashman; Oktaviandri, Muchamad
International Journal of Electrical, Energy and Power System Engineering Vol. 5 No. 1 (2022): International Journal of Electrical, Energy and Power System Engineering (IJEEP
Publisher : Electrical Engineering Department, Faculty of Engineering, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ijeepse.5.1.24-29

Abstract

Air conditioning is a process of excluding moisture and heat in interior space for better thermal comfort. It is also one of the largest energy consumers in a household. The air-conditioner uses a lot of energy to maintain desired room temperature. The world is getting old and technologies are getting more advanced every day, energy-efficient appliances are needed to preserve the world. This paper presents a design and testing of the PID control for temperature and humidity control using Arduino to get the optimum energy efficiency. The system was developing by implementing the DHT22 sensor. The objectives of this work are; to design experimental model of air conditioning system, and to optimize the system using PID control. The Arduino is used in this work to showcase the temperature and humidity reading. The experimental model has been successfully built for use with PC fan with 12V and 0.26A current rate. The real-life performance is quite satisfactory.
Penetration of DWT & ANFIS to Power Transmission Disturbances Ahmad, Sandy; Azhari Zakri, Azriyenni; Oktaviandri, Muchamad; Sunanda, Wahri; Suryadi, Aris
International Journal of Electrical, Energy and Power System Engineering Vol. 6 No. 1 (2023): The International Journal of Electrical, Energy and Power System Engineering (I
Publisher : Electrical Engineering Department, Faculty of Engineering, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ijeepse.6.1.105-110

Abstract

This study proposes a hybrid method to classify and estimate the location of short circuit disturbance on power transmission lines. The hybrid method uses Discrete Wavelet Transform (DWT) and Adaptive Neuro-Fuzzy Inference System (ANFIS). The transmission system is implemented in a real system, in which the electric power transmission system on the KP bus to the GS bus is with a length of 64 Km. The DWT is used to process information from each phase voltage and current transient signal as well as the zero-sequence current for one cycle after the disturbance has started. The ANFIS classification is designed to detect disturbance on each phase and ground in determining the type of short circuit disturbance. ANFIS estimation is used to measure the location of disturbance that occur on the transmission line. The training and testing data are generated by simulating the types of short circuit disturbance using software with variations in disturbance location and fault resistance. The result is that the disturbance classification is with 100% accuracy and the estimated disturbance location is with the lowest error of 0.0006% and the highest error is 0.03%.
Improvement of ankle foot orthotics fabrication using 3D printing method Saptaji, Kushendarsyah; Manasikana, Dinda Arina; Juniasih, Octarina Adiati; Ramadhani, Mochammad Rafli; Oktaviandri, Muchamad; Ramadhan, Anwar Ilmar; Asmara, Yuli Panca
SINERGI Vol 28, No 3 (2024)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/sinergi.2024.3.015

Abstract

Orthotics are the body support devices used for correction, immobilization, fixation, and prevention of paralysis. The greatest number of orthotics utilized by people suffering from plantarflexion and dorsiflexion disability, especially in Indonesia, is ankle foot orthotic (AFO). However, the duration associated with fabricating AFO through conventional methods is considered time-consuming. This paper aims to fabricate ankle foot orthotics (AFO) using innovative combinations of 3D scanning and 3D printing. The method begins with 3D scanning of the patient’s lower limb using photogrammetry (3DF Zephyr). The design is generated and adjusted, afterwards, the orthotic prototype is produced by fused deposition modeling (FDM) 3D printing using polypropylene (PP) material. This choice is attributed to the material's advantages, such as being lightweight, rigid, durable, and cost-effective. The 3D mesh model scanned using 3DF Zephyr shows good quality and more precise results. In addition, the prototype produced using 3D printing was tested by walking based on normal gait analysis’s angle of foot and calf measurement, which shows a maximum range of motion (ROM) of 16.1˚. The proposed methods of fabricating orthotic prototypes can successfully reduce the processing time by approximately 70% compared to the conventional method. 
PENGARUH UDARA TERKURUNG DI CHART RECORDER PADA PROSES HYDROTESTING Oktaviandri, Muchamad
Jurnal Teknik Mesin (Journal Of Mechanical Engineering) Vol 9, No 1 (2020)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/jtm.v9i1.6805

Abstract

Berdasarkan pipeline engineering, pipa di analisa memiliki tiga kondisi yaitu kondisi instalasi, hydrotest dan kondisi operasi. Pada saat kondisi tersebut pipa bawah laut sering sekali mengalami beberapa potensi dan bahaya yang mengancam kerusakan pipa dan berakibat pada keberlangsungan proses instalasi, operasi ataupun hydrotest. Apabila hal ini terjadi, maka permasalahan ini dapat meluas pada aspek pemeliharaan dan aspek ekonomis serta lingkungan yang ada disekitarnya. Selain itu, kegagalan pipa juga dapat terjadi karena faktor alam yang berasal dari gelombang, arus dan gempa bumi yang dapat menyebabkan terjadinya scouring, land slide dan soil liquefaction. Sebelum terjadi kegagalan pipa maka perlu melakukan mitigasi yang paling tepat untuk mengurangi adanya kegagalan pipa. Hydrotest itu sendiri disini memiliki peranan yang tidak kalah penting yaitu untuk mendeteksi kebocoran pipa dengan cara menyemprotkan air kedalam pipa.
Standardizing Wudhu Place Design for Standing Position User Using Quality Function Deployment (QFD) Oktaviandri, Muchamad; Syas, Mulyanti; Mukrim Bin Azman, Muhammad; Pradhana Revi, Dipo; Zaki Zaidan, Hilman
Indonesian Journal of Computing, Engineering, and Design (IJoCED) Vol. 7 No. 1 (2025): IJoCED
Publisher : Faculty of Engineering and Technology, Sampoerna University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35806/ijoced.v7i1.494

Abstract

The wudhu place is where Muslims perform ablution, washing particular parts of the body using water before performing prayer (shalat). Previous study has focused on finding the best wudhu place design for sitting positions. However, there are not many studies focusing on standardizing the wudhu place for standing position. Therefore, this paper attempts to address the gap in the research by studying the ergonomic aspect and standardizes for designing male wudhu places for standing positions using Quality Function Deployment (QFD). This includes the voice of the customer and the House of Quality. QFD is an effective design method to integrate ergonomics needs and comfort into wudhu place design, as it explicitly addresses the translation of customer requirements into engineering characteristics. This method is employed to identify the important criteria for improving the design of the wudhu place. Data is collected from existing and customer surveys of wudhu place. The objective of this study is to compare and to find the best measure for standardizing the wudhu places to enhance comfort and ergonomics. Based on the study, three main criteria have been standardized: a) the distance between the tap water from the standing position should be 74 cm to 84 cm b) the distance between two taps should be 14 cm to 17 cm c) the distance of the tap water from the wall should be 64 cm to 71 cm.
Implementation of 5S for the Small Business Workshop and Machine Shop: Community Service in RTG Custom Project Workshop Saptaji, Kushendarsyah; Hadisujoto, Ignatius Budi; Wibowo, Djati; Ifat; Putra, Indra Pertama; Nurprihatin, Filscha; Oktaviandri, Muchamad; Abdillah, Sultansyah Reza; Handika, Raditya Edra Raja; Lanaggalih, Jarvis Eros; Wong, Miguel Silvano Hermawan
Journal of Community Services: Sustainability and Empowerment Vol. 4 No. 02 (2024): September 2024
Publisher : Center for Research and Community Service of Sampoerna University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35806/jcsse.v4i2.503

Abstract

The implementation of the Japanese 5S methodology in a small motorcycle workshop in Bogor, Indonesia, has demonstrated significant improvements in workplace organization, operational efficiency, and safety. As Indonesia continues to lead motorcycle sales in the ASEAN region, the need for well-structured and efficient workshops becomes increasingly critical. However, many small businesses still struggle with inadequate organization and risk management. By applying the 5S principles—Sort (Sisih), Set in Order (Susun), Shine (Sapu), Standardize (Standar), and Sustain (Sinambung)—the workshop experienced reduced disorder, improved workflow, enhanced cleanliness, and well-defined procedures. These changes positively impacted productivity, workplace safety, and customer perception. Initial resistance to change was mitigated through comprehensive training and staff engagement, ensuring long-term adoption. This initiative aligns with Sampoerna University’s commitment to community development and serves as a scalable model for small businesses. With adequate government and NGO support, the 5S framework can enhance efficiency, competitiveness, and working conditions in Indonesia’s expanding motorcycle industry.
Co-Authors Abdillah, Sultansyah Reza Achmad Zuchriadi Ahmad, Sandy Anwar Ilmar Ramadhan Aris Suryadi Azhari Zakri, Azriyenni Budhi Martana D.K. A V Paramasivam Hadisujoto, Ignatius Budi Handika, Raditya Edra Raja Ifat Irga Irga Juniasih, Octarina Adiati Kushendarsyah Saptaji Lanaggalih, Jarvis Eros Manasikana, Dinda Arina Mohraffi Azura Pasha Muhamad Alif Razi Mukrim Bin Azman, Muhammad Ng Siew Kian Nurprihatin, Filscha Pasha, Mohraffi Azura Pradhana Revi, Dipo Putra, Indra Pertama RAHAYU, FAJAR Ramadhani, Mochammad Rafli Shahir, Ashman Silvia Anggraeni Syas, Mulyanti Wahri Sunanda Wibowo, Djati Wong, Miguel Silvano Hermawan Yuli Panca Asmara Zaki Zaidan, Hilman