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All Journal IAES International Journal of Artificial Intelligence (IJ-AI) Jurnal Teknik Mesin Rotasi AUSTENIT SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin Sinergi Jurnal Teknologi Elektro VANOS Journal of Mechanical Engineering Education Jurnal Teknik Mesin JMPM (Jurnal Material dan Proses Manufaktur) Science and Physics Education Journal (SPEJ) Jurnal AME (Aplikasi Mekanika dan Energi): Jurnal Ilmiah Teknik Mesin Jurnal Teknik Mesin Indonesia International Journal of Advanced Technology in Mechanical, Mechatronics and Material (IJATEC) JTTM: Jurnal Terapan Teknik Mesin Jurnal UNITEK Journal of Scientech Research and Development Journal of the Community Development in Asia International Journal of Innovation in Mechanical Engineering and Advanced Materials Aceh International Journal of Science and Technology Innovative: Journal Of Social Science Research Almikanika
Muhamad Fitri
Program Studi Teknik Mesin, Fakultas Teknik, Universitas Mercu Buana Jakarta
Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Public Health Social Sciences Other

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Becoming an International Brand: A Case Study of Starbucks Muhammad Azriuddin; Daisy Mui Hung Kee; Muhammad Hafizzudin; Muhamad Fitri; Muhammad Afiq Zakwan; Dalal AlSanousi; Aman Kelpia; Olivia Kurniawan
Journal of The Community Development in Asia Vol 3, No 1 (2020): January 2020
Publisher : AIBPM Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32535/jcda.v3i1.706

Abstract

This paper aims to investigate how Starbucks becomes the best coffee shop worldwide and how the organization overcomes its challenges and succeed to become an international brand. Starbucks is a popular coffee restaurant from the beginning but has just become a famous brand worldwide. Starbucks has over 20,000 stores in 62 countries around the world. In 1971 Starbucks opened its first store in Seattle’s Pike Place Market. Howard Schultz joins Starbucks as a director of Retail Operations and Marketing. Starbucks focuses on its mission “Inspire and nurture the human spirit-one person, one cup, and one neighbourhood at a time. Starbucks provides a variety of drinks from hot to cold, and foods. The most famous beverage is Frappuccino® Blended Beverages. Starbucks makes a beverage menu depending on the customer's request to meet their satisfaction. Starbucks emphasizes on high-quality service from the store environment to the work environment. Starbucks promotes its products through mass media such as advertising at the television, social media, billboards, and coupon card. The paper concludes with some recommendation.
Development of Teak Wood Powder–Epoxy Composite for Motorcycle CVT Weight Rollers Application R. Dwi Pudji Susilo; Muhamad Fitri; Muhammad Sulthan Yafiq; Abdul Hamid; Dedik Romahadi
International Journal of Innovation in Mechanical Engineering and Advanced Materials Vol. 8 No. 1 (2026)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/ijimeam.v8i1.33422

Abstract

The development of sustainable materials for automotive components has become increasingly important due to environmental concerns associated with conventional synthetic materials. This study investigates the feasibility of teak wood powder (Tectona grandis L.F.) reinforced epoxy composites as an eco-friendly alternative to polytetrafluoroethylene (PTFE) for Continuously Variable Transmission (CVT) weight rollers. The composite was fabricated using a hot-press method with varying composition ratios (60:40, 70:30, and 80:20) and processing temperatures (160 °C, 170 °C, and 180 °C) under a constant pressure of 20 bar. Mechanical performance was evaluated through tensile testing in accordance with ASTM D3039. The results demonstrate that both composition and processing temperature significantly influence tensile strength. The optimal condition—60% teak wood powder and 40% epoxy resin processed at 180 °C—yielded the highest average tensile strength of approximately 25 MPa, surpassing the typical value of conventional PTFE-based rollers (~23 MPa). The improvement is attributed to enhanced matrix–filler bonding and better resin flow at elevated temperatures, resulting in more effective load transfer and reduced void formation. Conversely, higher filler content led to reduced performance due to insufficient matrix continuity and increased interfacial defects. This study provides a significant contribution by demonstrating that teak wood waste can be effectively utilized as a reinforcement material in structural automotive applications. The findings highlight a viable pathway toward cost-effective, sustainable composite design while maintaining competitive mechanical performance. Further investigation on tribological behavior and long-term durability is recommended to support real-world implementation.
Optimized Frame Design for Head Loss Testing Equipment Through Material Strength Analysis Hendrikus Wermasaubun; Muhamad Fitri; Abdul Hamid; Dedik Romahadi
International Journal of Innovation in Mechanical Engineering and Advanced Materials Vol. 6 No. 1 (2024)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/ijimeam.v6i1.18915

Abstract

This article presents the design and analysis of a frame for head loss testing equipment, crucial for evaluating flow losses in pipe installations. The objective was to develop a robust yet lightweight frame that could withstand the operational loads imposed by the testing equipment. The frame, which supports essential components such as pipes, venturi meters, elbows, and reducers, was constructed using ASTM A500 hollow sections with dimensions of 20 x 20 x 1.6 mm and 35 x 35 x 1.6 mm. These dimensions were selected for their balance between strength and weight, validated through strength analysis and SolidWorks simulations. Conducted at Universitas Mercu Buana, the project involved the design, manufacturing, and testing of the frame to determine its load-bearing capacity. The results from the SolidWorks simulations confirmed the frame's structural integrity, which was further validated by its successful application in a practical setup. This study demonstrates the effectiveness of a systematic design approach, integrating material selection, load analysis, and simulation to achieve an optimal solution. The findings contribute valuable insights into the use of ASTM A500 hollow sections in structural applications, particularly where both strength and weight are critical. This work sets a precedent for future designs in mechanical engineering, offering a reliable framework for developing durable and efficient testing equipment.
Effect of Water Hyacinth Fiber Length and Content on the Torsional Strength of Epoxy Resin Composites Putratama Aziz Pramana; Muhamad Fitri; Abdul Hamid; Dedik Romahadi
International Journal of Innovation in Mechanical Engineering and Advanced Materials Vol. 6 No. 3 (2024)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/ijimeam.v6i3.19701

Abstract

This study investigates the influence of water hyacinth fiber length and content on the torsional strength of epoxy resin composites. Utilizing an experimental design, specimens were prepared with varying fiber lengths (10 mm, 20 mm, 25 mm, and 135 mm) and content percentages (4%, 7%, and 10%) and subjected to torsional testing according to ASTM E-143 standards. The primary objective was to determine the optimal fiber configurations that enhance the composite's mechanical properties, particularly its resistance to torsional stress. Results indicated that shorter fiber lengths consistently yielded higher torsional strength, with the 20 mm fibers at a 7% content displaying the highest torque resistance, achieving a maximum of 1.418 Nm and a shear stress of 29.348 MPa. In contrast, longer fibers generally showed diminished performance, likely due to poorer resin penetration and fiber-matrix bonding. Regression analysis was employed to develop predictive models for the torsional behavior based on fiber dimensions and compositions, achieving high accuracy with coefficients of determination (R²) ranging from 0.95 to 1.00, suggesting excellent model fits. These findings underscore the potential of using water hyacinth fibers as effective reinforcement in epoxy composites, particularly at optimal lengths and concentrations. The study contributes to the broader utilization of natural fibers in composites, offering a sustainable alternative to synthetic fibers with beneficial mechanical properties and environmental impacts.
Optimization of CNC Turning Parameters for Surface Roughness of Brass 36000 Using the Taguchi Method Agus Noviana; Muhamad Fitri; Dedik Romahadi
International Journal of Innovation in Mechanical Engineering and Advanced Materials Vol. 7 No. 3 (2025)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/ijimeam.v7i3.37302

Abstract

Brass is widely used in industrial applications due to its excellent machinability and durability, making it well suited for CNC turning operations. Although numerous studies have investigated the optimization of turning parameters, variations in machine tools and cutting conditions often lead to differing conclusions. This study aims to optimize surface roughness in the CNC turning of Brass 36000 using the Taguchi method. An L9 orthogonal array was employed to evaluate the effects of spindle speed, feed rate, depth of cut, and coolant type. Experimental data were analyzed using signal-to-noise (S/N) ratio analysis and analysis of variance (ANOVA) to identify the most influential parameters and optimal cutting conditions. The results indicate that feed rate is the dominant factor affecting surface roughness, contributing 95.54% of the total variation, followed by spindle speed (1.88%), depth of cut (0.33%), and coolant type (0.18%). The optimal machining parameters were determined as a spindle speed of 1700 rpm, feed rate of 0.1 mm/rev, depth of cut of 1.0 mm, and the use of synthetic coolant (GT41), resulting in a minimum surface roughness of 0.67 µm. These findings demonstrate that precise control of feed rate is critical for achieving improved surface quality in CNC turning of brass.
Inovasi Komprehensif Komposit Berbasis Polimer dan Serat Daur Ulang untuk Infrastruktur  Berketahanan Tinggi dan Berkelanjutan : ”Sebuah Tinjauan” Sri Bintang Faisal; Muhamad Fitri
Science and Physics Education Journal (SPEJ) Vol. 9 No. 2 (2026): SPEJ (Science and Physics Education Journal)
Publisher : Institut Penelitian Matematika, Komputer, Keperawatan, Pendidikan dan Ekonomi (IPM2KPE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31539/q5hhyx96

Abstract

Permintaan yang terus meningkat akan material konstruksi yang ramah lingkungan, berdaya tahan tinggi, dan berkinerja mekanis unggul telah mendorong pergeseran paradigma dalam teknik mesin. Penelitian ini menyajikan sintesis komprehensif dari inovasi material komposit berbasis polimer dan serat, yang mengintegrasikan aspek keberlanjutan, kinerja struktural, dan pemodelan prediktif. Penelitian ini mengadopsi pendekatan Ekonomi Sirkular yang kuat, memvalidasi penggunaan limbah industri dan konsumen sebagai pengisi fungsional. Pemanfaatan limbah, seperti busa polistirena daur ulang, serbuk perlit, serbuk karet ban bekas (tyre crumbs), dan agregat beton daur ulang (Recycled Aggregate - RA), telah terbukti efektif dalam memproduksi Komposit Polimer-Semen (PCC) dan Beton Polimer (PC) yang ringan namun berkinerja tinggi. Secara khusus, komposit yang mengandung Polistirena/Serbuk Karet menunjukkan peningkatan signifikan dalam kekuatan tekan (hingga 22.2%), sementara PC dengan RA menunjukkan kuat tekan yang luar biasa (hingga 96 MPa) karena optimasi mikrostruktur dan pembentukan lapisan resin pelindung. Selain itu, pemanfaatan serat alami yang berkelanjutan, seperti serat daun kurma dan serat rami (Hemp Fiber), telah divalidasi sebagai alternatif penguatan yang efektif dan ramah lingkungan. Optimalisasi komposisi material, termasuk rasio volume resin dan perlakuan permukaan pada pengisi (misalnya serbuk gergaji), lebih lanjut memastikan peningkatan stabilitas dan sifat mekanis material.Dari sisi aplikasi struktural, material komposit menunjukkan peran penting dalam perkuatan dan pengembangan elemen baru. Penggunaan Carbon Fiber-Reinforced Polymer (CFRP), termasuk aplikasi prategang, terbukti sangat efektif untuk perbaikan balok beton bertulang yang mengalami korosi dan penguatan balok komposit baja-beton. Selain itu, elemen struktural inovatif seperti Tiang Komposit Tabung FRP berisi Beton (CFFT) telah diuji kinerjanya di bawah beban lateral siklik, dan Komposit Kayu-Beton (TCC) dengan matriks epoksi memberikan ikatan geser yang unggul dibandingkan matriks lain. Terakhir, pemanfaatan model prediktif canggih, seperti algoritma Extreme Gradient Boosting (XGBoost), telah memungkinkan perkiraan sifat mekanis dengan akurasi tinggi (R² hingga 0.981), memfasilitasi desain material yang didorong oleh data. Secara kolektif, temuan ini mengukuhkan komposit berbasis polimer dan serat sebagai solusi material masa depan, secara simultan mendukung keberlanjutan melalui daur ulang limbah skala besar dan memastikan ketahanan mekanis luar biasa dari infrastruktur sipil.   Kata Kunci: Komposit Berbasis Polimer, Konstruksi Berkelanjutan, Daur Ulang Limbah, Kuat Tekan, Perkuatan CFRP, Agregat Daur Ulang, Beton Serat (FRP)
DESIGN OF FRAME FOR THE PUMP PERFORMANCE TEST EQUIPMENT USING VDI 2221 METHOD Muhamad Fitri; Frelly Rizqiansyah
International Journal of Innovation in Mechanical Engineering and Advanced Materials Vol. 4 No. 1 (2022)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/ijimeam.v4i1.15374

Abstract

Pumps in modern human life have become a major need, and their use is very wide, therefore pump learning is indispensable for mechanical engineering students. For pump performance learning media, Pump Performance Test Equipment (PPTE) is needed. The test equipment requires a strong frame and meets the requirements to be able to withstand the load, not only the equipment load but also the water weight used as the working fluid on the performance test equipment which is very large. This study aims to design a frame that can withstand the entire load of the PPTE. The design is done by calculating the load experienced by the frame when the test equipment is operated. The design of this pump performance test framework uses the VDI 2221 method, which includes several stages: task clarification, design concepts, concept embodiment, and design details. The results obtained from the use of the VDI 2221 method are variation 1, with a frame of 1000mm length, 1200mm width, and 1140mm height. The frame specifications using 4x4 hollow steel size with a thickness of 2mm and 4x6 size with a thickness of 3mm, and using a wheel type with a lock that can withstand the load. maximum up to 600kg.
ANALYSIS OF OIL ABSORPTION AND FRICTION COEFFICIENT OF BAMBOO POWDER, COCONUT POWDER, GLASS POWDER, AND COPPER POWDER COMPOSITES FOR CLUTCH PADS Iqbal Risyuma; Muhamad Fitri
International Journal of Innovation in Mechanical Engineering and Advanced Materials Vol. 4 No. 2 (2022)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/ijimeam.v4i2.18235

Abstract

This study aims to determine the characteristics of the absorption test with SAE 10W-30 and the friction coefficient test with the ASTM D 3702-94 test standard on composite clutch pads made from bamboo powder, coconut powder, glass powder, and copper powder. It is based on the considerations that there are abundance of natural resources of bamboo and coconut with that is still not optimally utilized as well as the discovery of several hazardous clutch lining (asbestos) basic material properties. In each test, each composition variation was tested 3 times and from the data, the average value of the composition variation was taken. Based on this research, the specimen with the highest oil absorption value is specimen combination 3 (BB20KL20CU0KC20) with an absorption value of 17.98% and the specimen with the lowest absorption value is specimen combination 2 (BB20KL20CU5KC15) with an absorption value of 4.88%, and the specimen with the highest percentage change in volume is specimen combination 1 (BB20KL20CU10KC10) with a percentage of 3.30%, and the specimen with the lowest percentage change in volume is specimen combination 2 (BB20KL20CU5KC15) with a percentage of 1.01%. From the results of the combined friction coefficient test, specimen 3 (BB20KL20CU0KC20) has the highest friction coefficient value of 0.54526 and specimen 2 (BB20KL20CU5KC15) has the lowest friction coefficient value of 0.16923.
IMPLEMENTATION OF THE FINITE ELEMENT METHOD IN SOLIDWORKS TO OPTIMIZE THE FRONT CAST WHEEL DESIGN FOR MOTORCYCLES Rizki Nur Afami Kurniawan; Dedik Romahadi; Muhamad Fitri; Md Radwanul Karim
International Journal of Innovation in Mechanical Engineering and Advanced Materials Vol. 4 No. 3 (2022)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/ijimeam.v4i3.18794

Abstract

Cast wheel rims often experience damage that causes damage to the lip of the rim, or the spokes rupture if it supports the excessive load. The safety aspect is very important to be considered in the automotive industry because it involves the lives of passengers. Structural optimization of various vehicle components has shown that component weight strongly influences vehicle performance. Based on these problems, this research aims to design a lightweight cast wheel design model that can withstand a load of 535 N. So, it is necessary to make an analysis using a comparison of design models and material variations and static simulations using Solidworks 2018 software. The results sought are von mises, displacement, strain, a factor of safety, and produce a lightweight design. The simulation results on the three models are still safe in holding a load of 535 N because the value of the factor of safety is not less than 1. The results of the design mass with material variations are lighter than the original wheels.
DESIGN OF A 10 TONS OVERHEAD CRANE WITH 21 METERS SPAN USING FINITE ELEMENT METHOD Anton Heriawan; Muhamad Fitri
International Journal of Innovation in Mechanical Engineering and Advanced Materials Vol. 4 No. 3 (2022)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/ijimeam.v4i3.18882

Abstract

A crane is a lifting equipment widely used to move cargo, construction sites, storage, and unload. The type of crane that is commonly used in industrial environments is the overhead crane. The overhead crane functions as a lifting device. Besides that, it also works as a load transfer tool even though the load being moved is limited to an environment that is not too large (indoor) at PT. A overhead crane is designed to overcome the problem of moving material in the mold storage area due to the area's expansion and the addition of 5-7 tons of mold material. Therefore, proper design is needed so the overhead crane can function properly. The design method uses the VDI 2221 or Finite Element with Solid works software. The results of the structure obtained are double box girder type girders with dimensions p = 21 m, t = 1224 mm, and l = 600 mm. The deflection results are 13.75 mm, and the runway uses steel profile I with dimensions 400 x 200 x 8 x 13 mm, with a deflection value at the runway stem of 5.6 mm. The type of wire rope used is type 6 x 37, with a diameter of 28 mm. The stress that occurs in the steel rope is 4306.1 Kg, less than the maximum allowable tensile stress of 8009.4 Kg. The single hook type with a hook diameter of 120 mm is made of material S45C. The tensile stress on the hook is 0.88 Kg, and the result is smaller than the allowable tensile stress of 12.72 Kg. The pulley diameter is 630 mm, the drum diameter is 604.9 mm, and the drum length is 279 mm.
Co-Authors Abdul Hamid Abdul Hamid Abdul Hamid Afrian, Roni Agus Hermawan Agus Noviana Agus Wibowo Ahmad Supendi AlSanousi, Dalal Alvian, Lutfi Aman Kelpia Andi Firdaus Sudarma Andi Firdaus Sudarma Anton Heriawan Anugrah, Hasan Ardian, Rifky Dwi Ariansyah, Nando Arief, Sulaiman Azharuddin Azharuddin, Azharuddin Azizi, M Azizi, Muhammad Azriuddin, Muhammad Bambang Sukiyono Bustomi, Muhammad Ardi Dafit Feriyanto Daisy Mui Hung Kee Dalal AlSanousi Damanik, Fadth Rizky Darwin Sebayang Darwin Sebayang Dedik Romahadi Dedik Romahadi Deni Shidqi Khaerudini Dimas Dwi Saputra Edy Hartulistiyoso Edy Herianto Majlan Fadila, Muhammad Afif Fajar Anggara Frelly Rizqiansyah Glennart Sahat Rubian Hadi Pranoto Hafidz Salafuddin Hafizzudin, Muhammad Hanifi, Rizal Hendrikus Wermasaubun I Gusti Ayu Arwati Imam Hidayat Imam Hidayat Iqbal Risyuma Irawan Malik kara, Reksi Bagas Kee, Daisy Mui Hung Kelpia, Aman Khariri, Muhamad Ervin Khuzaimah Arifin Kurniawan, Olivia Kurniawan, Rizki Nur Afami Leopold Oscar Nelwan M. Azizi Maharani Dewi Solikhah Mahendra, Tito Syahril Sobarudin Izha Martua Limido Simanjuntak Maulana Yusuf Md Radwanul Karim Mizan, Adlan Mohamad Abror Muhammad Afiq Zakwan Muhammad Azriuddin Muhammad Edi Laksono Muhammad Hafizzudin Muhammad Imran Muhammad Rizky Imaduddin Muhammad Sulthan Yafiq Nono Darsono Noviana, Agus Nurato Nurgiansyah, Rama Obie Farobie Okki Khusnul Mahmudin Oktaviani, Ana Nur Olivia Kurniawan Pradipta, Nanang K. Pramana, Putratama Aziz Pratama, Andrie Putra Ramadhan, Fajar Gilang Putratama Aziz Pramana R Dwi Pudji Susilo R. Dwi Pudji Susilo Rafi, Muhammad Miftah Rizki Nur Afami Kurniawan Rizky Fajar Sutrimo Rofiqie, Ahmad Rohmatulloh, Izzi S. Mahzan Santoso, Dwi Adi Shahruddin Mahzan Shahruddin Mahzan Shahruddin Mahzan Silvia, Vika Sitanggang, Maria Nelly Aprilianti Sri Bintang Faisal Susilo, R Dwi Pudji Susilo, R. Dwi Pudji Tarigan, Kontan Tito Syahril Sobarudin Izha Mahendra Tri Yulni Wermasaubun, Hendrikus Wibowo, Agus Setiawan Wirawanto, Teguh Yafiq, Muhammad Sulthan Yohanes Aris Purwanto Yudhistira, Gilang Awan Zakaria Zakaria Zakwan, Muhammad Afiq